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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

For the fiscal year ended December 31, 2004

OR

For the transition period from                  to                 

Commission file number 000-31293

EQUINIX, INC.

(Exact name of registrant as specified in its charter)

301 Velocity Way, Fifth Floor, Foster City, California 94404

(Address of principal executive offices, including ZIP code)

(650) 513-7000

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

None

Securities registered pursuant to Section 12(g) of the Act:

Common Stock, $0.001

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    x  Yes    ¨  No

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ¨

Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Act). x  Yes    ¨  No

The aggregate market value of the voting and non-voting common stock held by non-affiliates computed by reference to the price at which the common stock was last sold, or the average bid and asked price of such common stock, as of the last business day of the registrant’s most recently completed second fiscal quarter was approximately $518.2 million.

As of February 28, 2005, a total of 23,445,362 shares of the registrant’s common stock were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Part III—Portions of the registrant’s definitive Proxy Statement to be issued in conjunction with the registrant’s 2005 Annual Meeting of Stockholders, which is expected to be filed not later than 120 days after the registrant’s fiscal year ended December 31, 2004. Except as expressly incorporated by reference, the registrant’s Proxy Statement shall not be deemed to be a part of this report on Form 10-K.

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EQUINIX, INC.

FORM 10-K

DECEMBER 31, 2004

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PART I

ITEM 1.    BUSINESS

The words “Equinix”, “we”, “our”, “ours”, “us” and the “Company” refer to Equinix, Inc. All statements in this discussion that are not historical are forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, including statements regarding Equinix’s “expectations”, “beliefs”, “hopes”, “intentions”, “strategies” or the like. Such statements are based on management’s current expectations and are subject to a number of factors and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. Equinix cautions investors that there can be no assurance that actual results or business conditions will not differ materially from those projected or suggested in such forward-looking statements as a result of various factors, including, but not limited to, the risk factors discussed in this Annual Report on Form 10-K. Equinix expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in Equinix’s expectations with regard thereto or any change in events, conditions, or circumstances on which any such statements are based.

Overview

Equinix provides network neutral colocation, interconnection and managed services to enterprises, content companies, systems integrators and the world’s largest networks. Through our 15 Internet Business Exchange centers, or IBX centers, in the U.S. and Asia customers can directly interconnect with each other for critical traffic exchange requirements. Direct interconnection to our aggregation of networks, which serve more than 90% of the world’s Internet routes, allows our customers to increase performance while significantly reducing costs. Based on our network neutral model and the quality of our IBX centers, we believe we have established a critical mass of customers. Our differentiated business model, the critical mass and the resulting “network effect,” combined with our strong financial position, has allowed us to continue to accelerate new customer growth and strong bookings from our existing customers; and, given we have a largely fixed cost model related to our existing IBX centers, we believe this customer and booking growth will continue to drive high margins and cash returns.

Our network neutral business model is a key differentiator for Equinix in the market. Because we do not operate a network, we are able to offer direct interconnection to the largest aggregation of bandwidth providers and Internet service providers. The world’s top tier Internet service providers, and numerous access networks, second tier providers and international carriers such AT&T, British Telecom, Cable & Wireless, Level 3, MCI, NTT, SAVVIS, SBC, SingTel, Sprint and Qwest are all currently located at our IBX centers. Access to such a wide variety of networks has attracted all of the top 10 Internet properties and major E-commerce companies including Amazon.com, Disney, Electronic Arts, MSN, Ticketmaster and Yahoo!. In 2004, Equinix also experienced significant growth from enterprise companies and government agencies and now has a strong client base from these sectors including EDS, Fujitsu, Gannett, The Gap, General Electric, Goldman Sachs, IBM, Sony, Wal-Mart, Washington Mutual, and Washington Post.

We offer three types of products and services: Colocation, Interconnection, and Managed IT Infrastructure services.

This market has historically been served by large telecommunications carriers who have bundled their telecommunications services with their colocation offerings. In mid-2003 two major telecommunications companies announced their plans to exit the U.S. market in order to focus on their core offerings. The majority of the assets from these companies have been sold to managed service providers and we believe we will continue to benefit from gaining customers who are displaced or choose to leave these providers because we offer access to a

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world-class choice of carriers and service providers. In addition, because many of the exiting competitors networks are already present in Equinix, we have become a natural channel partner for these networks as they continue to experience demand from their customers for quality colocation.

In order to serve this increased demand for our services, we have acquired two additional data centers during 2004 in our key markets in the Silicon Valley and Washington, D.C. areas. Strategically, Equinix will continue to look at financially attractive opportunities to grow our market share and selectively improve our footprint and service streams.

Recent Developments

In April 2004, we entered into a long-term lease for a 95,000 square foot data center in the Washington, D.C. metro area. This data center is adjacent to the Company’s existing Washington D.C. metro area IBX. This lease includes the leasing of all of the IBX plant and machinery equipment located in the building. Both the building and equipment components of this lease are being accounted for as a capital lease. We took possession of this property during the fourth quarter of 2004, and as a result, recorded property and equipment assets, as well as a capital lease obligation, totaling $35.3 million. Payments under this lease, which commenced in November 2004, will be made through 2019 at an effective interest rate of 8.50% per annum. We intend to place customers in this center in 2005.

In December 2004, we entered into a long-term lease for a 103,000 square foot data center in the Silicon Valley area. This data center is close to our existing IBX centers in the Silicon Valley, and expands the global Equinix footprint to approximately 1.4 million square feet. This new lease will add an additional $34.2 million in cumulative monthly lease payments through 2020, commencing February 2005. We will take possession of this property during the first quarter of 2005. We currently intend to place customers in this data center in 2005. Concurrent with the signing of this lease, we also purchased the assets located in this data center and entered into an agreement to interconnect all three of our Silicon Valley IBX centers to each other through redundant dark fiber links. This will allow our customers to have access to all the networks and customers in each of the three Silicon Valley IBXs. We are currently evaluating the accounting treatment for this lease, and related agreements, and will have this evaluation completed in March 2005.

In December 2004, in light of the availability of fully built-out data centers in select markets at costs significantly below those costs we would incur in building out new space, we made the decision to exit leases for excess space adjacent to one of our New York metro area IBXs, as well as space on the floor above our original Los Angeles IBX. As a result of our decision to exit these spaces, we recorded a restructuring charge totaling $17.7 million, which represents the present value of our estimated future cash payments, net of any estimated subrental income and expense, through the remainder of these lease terms, as well as the write-off of all remaining property and equipment attributed to the excess space on the floor above our Los Angeles IBX. We entered into a two-year sublease agreement for the excess space in the New York metro area and are currently evaluating opportunities related to our excess space in Los Angeles.

In December 2004, we entered into a $25.0 million line of credit arrangement with Silicon Valley Bank that matures in December 2006. This facility is a $25.0 million revolving line of credit which, at our election, up to $10.0 million may be converted into a 24-month term loan, repayable in eight quarterly installments. We refer to this transaction as the “Silicon Valley Bank credit line.” Borrowings under the Silicon Valley Bank credit line bear interest at floating interest rates, plus applicable margins, based either on the prime rate or LIBOR. As of December 31, 2004, the Silicon Valley Bank credit line had an interest rate of 4.40% per annum; however, through the date of filing of this report on Form 10-K, we have not drawn down any amounts from this line of credit. The Silicon Valley Bank credit line also features sublimits, which allows us to issue letters of credit, enter into foreign exchange forward contracts and make advances for cash management services. Our utilization under any of these sublimits would have the effect of reducing the amount available for borrowing under the Silicon Valley Bank credit line during the period that such sublimits remain utilized and outstanding. As of December 31, 2004, we had utilized $3.2 million under the letters of credit sublimit with the issuance of three

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letters of credit and, as a result, reduced the amount of borrowings available to us from $25.0 million to $21.8 million. The Silicon Valley Bank credit line is secured by substantially all of our domestic assets and contains numerous covenants, including financial covenants, such as maintaining minimum cash balance levels and meeting minimum quarterly revenue targets, which we are in full compliance of. The Silicon Valley Bank credit line provides us with additional liquidity and financing flexibility.

In January 2005, we converted 95% of the outstanding convertible secured notes and accrued and unpaid interest, held by STT Communications Ltd., into 4.1 million shares of our preferred stock, which was subsequently converted into 4.1 million shares of our common stock in February 2005. The remaining 5% of the convertible secured notes, totaling $1.9 million, that remain outstanding will be eligible for conversion by Equinix in early 2006 into approximately 250,000 shares (including anticipated interest expense to be incurred during 2005 and early 2006), provided that the closing price of our common stock exceeds $32.12 per share for thirty consecutive trading days.

Industry Background

The Internet is a collection of numerous independent networks interconnected with each other to form a network of networks. Users on different networks are able to communicate with each other through interconnection between these networks. For example, when a user of the Internet sends an email to another user, assuming that each person uses a different network provider, the email must pass from one network to the other in order to get to the final destination.

In order to accommodate the rapid growth of Internet traffic, an organized approach for network interconnection was needed. The exchange of traffic between these networks became known as peering. Peering is when networks trade traffic at relatively equal amounts and set up agreements to trade traffic for free. At first, government and non-profit organizations established places where these networks could exchange traffic, or peer, with each other—these points were known as network access points, or NAPs. Over time, many NAPs became a natural extension of carrier services and were run by such companies as MFS (now a part of MCI), Sprint, Ameritech and Pacific Bell (both now known as SBC).

Ultimately, these NAPs were unable to scale with the growth of the Internet and the lack of “neutrality” by the carrier owners of these NAPs created a conflict of interest with the participants. This created a market need for network neutral interconnection points that could accommodate the rapidly growing need to increase performance for enterprise and consumer users of the Internet, especially with the rise of important content providers such as Microsoft, Yahoo!, America Online and others. In addition, the providers, as well as a growing number of enterprises required a more secure, reliable solution for direct connection to a variety of telecommunications networks as the importance of their Internet operations continued to grow.

To accommodate Internet traffic growth, the largest of these networks left the NAPs and began trading traffic by placing private circuits between each other. Peering which once occurred at the NAP locations were moved to these private circuits. Over the years, these circuits became expensive to expand and could not be built fast enough to accommodate the growth in traffic. This led to a need by the large carriers to find a more efficient way to trade traffic or peer. Customers have chosen Equinix for their peering operations because they are now able to reach all of the networks they peer with in one location, with simple direct connections. Their ability to peer across the room, instead of across a metro area has increased the scalability of their operations while decreasing cost by upwards of 70%.

Our IBX centers are the next-generation interconnection points. They are designed to handle the scalability issues that exist between both large and small networks, as well as the interconnection between the emerging companies who have become critical to the Internet. We have been successful in uniting the major companies that make up the Internet infrastructure including AT&T, Level 3, MCI, Qwest, SAVVIS and Sprint. These companies, which constitute the world’s top Internet service providers, together with most of the major

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broadband networks, including America Online, Comcast Corporation, Cox Communications, MSN and SBC, second tier backbones such as Global Crossing, Verio and WilTel, top international telecommunications carriers, including Bell Canada, British Telecom, Deutsche Telecom, France Telecom, Japan Telecom, KDDI, SingTel, StarHub, Telia and Telstra, and almost every fiber, sonet, Ethernet and competitive local exchange companies, including Looking Glass Networks and OnFiber Communications, and incumbent local exchange company, including BellSouth, SBC and Verizon, are our customers and use us to interconnect with each other and their customers. Additionally, we provide an important industry leadership role in the area of exchange points and are consistently looked to as an industry expert and key influencer in this subject matter.

Content providers and enterprises can now control their own network performance and destiny by choosing the various service providers they wish to work with and by establishing direct connections for this connectivity. For our customers, this represents significant cost savings and increased flexibility to move among providers.

Our Solution

Our IBX centers provide the environment and services to meet the networking and IT operations challenges facing enterprises, networks and Internet businesses today. As a result, we are able to provide the following key benefits to our customers:

Quality.    Our IBX centers provide customers with a secure, high quality solution for their colocation needs. Enterprise and content companies have demanding requirements for data center uptime, security, power backup and other important attributes. We have designed our centers and processes to exceed the requirements for the most important financial institutions, government agencies and key enterprise brands such as Amazon.com, The Gap, Goldman Sachs, Macromedia, Sony and Ticketmaster. We have a track record of 99.999% uptime and are continually testing and refining processes to ensure that we will continue to provide the stability and quality that customers expect.

Performance.    Because we provide direct access to the providers that serve more than 90% of the world’s Internet routes and users, customers can quickly, efficiently, cost-effectively and reliably exchange traffic with their network services providers for higher performance operations. Access to the more than 200 networks ensures high-quality direct interconnection. With the mass of networks present, global enterprises are increasingly looking at ways to provide network diversity and increase performance of their operations, and are utilizing our IBX centers to ensure their IT infrastructures are operating at the interconnection hub of the Internet. By using multiple networks, customers are able to insure their operations in the event that one of their network service providers has a service interruption or restructuring in the business. The network service providers and geographic diversity we offer provides customers with the flexibility to enable the highest performing Internet operations.

Improved Economics.    Our services such as Equinix GigE Exchange and Equinix Internet Core Exchange facilitate peering and dramatically reduce costs for critical transit, peering and traffic exchange operations by eliminating the costs of private peering or local loops. Networks such as Cox, British Telecom, China Telecom and SBC and content providers such as Electronic Arts, Google, MSN and Yahoo! can save between 20% to 70% of bandwidth costs through the traffic exchange services we offer. In addition, content companies and enterprises can save significant bandwidth costs because the number of networks housed within Equinix competing for the traffic of these companies results in lower prices while increasing performance.

Access to International Markets.    We offer our network, content and enterprise customers a one-stop solution for their outsourced IT infrastructure needs in the U.S. and Asia-Pacific. This is especially important for U.S. enterprises who want to expand into Asia-Pacific, where the myriad of complexities for doing business in each country remains challenging. We offer a consistent standard of quality, a single contract and a single point of support for all our locations throughout the U.S. and Asia-Pacific.

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Our Strategy

Our objective is to become the premier hub for critical Internet players, enterprises and government agencies to locate their Internet operations in order to gain maximum benefits from the choice of networks and partners in the most simple and efficient manner. Key components of our strategy include the following:

Continue to Build upon our Critical Mass of Network Providers and Content Companies, and Grow our Position within Enterprise and Government.    We have assembled a critical mass of premier network providers and content companies and have become one of the core hubs of the Internet. This critical mass is a key selling point since content companies want to connect with a diverse set of networks to provide the best connectivity to their end-customers, and network companies want to sell bandwidth to content customers and interconnect with other networks in the most efficient manner available. Currently, we have over 200 unique networks, including all of the top tier networks, allowing our customers to directly interconnect with providers that serve more than 90% of global Internet routes. We have a growing mass of key players in the enterprise sector, such as The Gap, GE, Gannett, Goldman Sachs, IBM, Sony Corporation, Washington Mutual and others. Similarly, we have experienced increasing success in the government sector within defense and security. We expect these sectors be a key growth driver in 2005 and beyond.

Leverage the Network Effect.    As networks, content providers and other enterprises locate in our IBX centers, it benefits their suppliers and business partners to do so as well to gain the full economic and performance benefits of direct interconnection. These partners, in turn, pull in their business partners, creating a “network effect” of customer adoption. Our interconnection services enable scalable, reliable and cost-effective interconnection and traffic exchange thus lowering overall cost and increasing flexibility. The ability to directly interconnect with a wide variety of companies is a key differentiator for Equinix in the market.

Promote our IBX Centers as the Highest Performance Points on the Internet.    Our premier IBX centers offer state of the art design and security, 24 hour / 365 days a year customer service, and high quality power and back-up redundancy with 99.999% uptime. Underscoring our customer satisfaction over the past year, our embedded customer base has consistently provided approximately 75% of our growth in a given quarter.

Provide New Products and Services within our IBX Centers.    We will continue to offer additional products and services that are most valuable to our customers as they manage their Internet and network businesses and, specifically, as they attempt to effectively utilize multiple networks. For example, we offer an automated service to allow customers to easily choose and provision multiple networks with a simple easy to use portal.

Customers

Our customers include carriers and other bandwidth providers, internet service providers, enterprises, content providers and system integrators. We offer each customer a choice of business partners and solutions based on their colocation, interconnection and managed IT service needs. As of December 31, 2004, we had 950 customers worldwide.

Typical customers in each category include the following:

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Customers typically sign renewable contracts of one or more years in length. Our single largest customer, IBM, represented approximately 13%, 15% and 20% of total revenues for the years ended December 31, 2004, 2003 and 2002, respectively. No other single customer accounted for more than 10% of revenues during this time.

Products and Services

Our products and services are comprised of three types: Colocation, Interconnection and Managed IT Infrastructure services.

Colocation Services

Our IBX centers provide our customers with secure, reliable and fault-tolerant environments that are necessary for optimum Internet commerce interconnection. Our IBX centers include multiple layers of physical security, scalable cabinet space availability, on-site trained staff 24 hours per day, 365 days per year, dedicated areas for customer care and equipment staging, redundant AC/DC power systems and multiple other redundant, fault-tolerant infrastructure systems. Some specifications or services provided may differ in our Asia-Pacific locations in order to properly meet the local needs of customers in those locations.

Within our IBX centers, customers can place their equipment and interconnect with a choice of networks or other business partners. We also provide customized solutions for customers looking to package our IBX space as part of their complex solutions. Our colocation products and services include:

Cabinets.    Our customers have several choices for colocating their networking and server equipment. They can place the equipment in one of our shared or private cages or customize their space. As a customer’s colocation requirements increase, they can expand within their original cage or upgrade into a cage that meets their expanded requirements. Cabinets are priced with an initial installation fee and an ongoing recurring monthly charge.

Power.    We offer both AC and DC power circuits at various amperages and phases customized to a customer’s individual power requirements. Power is becoming an element of increasing importance in customers’ colocation decisions.

IBXflex.    This service allows customers to deploy mission-critical operations personnel and equipment on-site at our IBX centers. Because of the close proximity to their end-users, IBXflex customers can offer a faster response and quicker troubleshooting solution than those available in traditional colocation facilities. This space can also be used as a secure disaster recovery point for customers’ business and operations personnel. This service is priced with an initial installation fee and an ongoing recurring monthly charge.

Interconnection Services

Our interconnection services enable scalable, reliable and cost-effective interconnection and traffic exchange between all Equinix customers. These interconnection services are either on a one-to-one basis with direct cross connects or one-to-many through one of our peering services. In peering, we provide an important industry leadership role by acting as the relationship broker between parties who would like to interconnect within our IBX centers. Our staff holds significant positions in the leading industry groups such as the North American Network Operators’ Group, or NANOG, and the Internet Engineering Task Force, or IETF, and bring a tremendous amount of knowledge to this area. Our staff published industry-recognized white papers and strategy documents in the areas of peering and interconnection, many of which are used by leading institutions worldwide in furthering the education and promotion of this important network arena. To showcase these efforts, we hold peering forums which are now widely recognized as a very influential forum for the world’s top peering experts. We will continue to develop additional services in the area of traffic exchange that will allow our customers to

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leverage the critical mass of networks now available in our IBX centers. The current exchange services are comprised of the following:

Physical Cross-Connect/Direct Interconnections.    Customers needing to directly and privately connect to another IBX customer can do so through single or multi-mode fiber. These cross connections are the physical link between customers and can be implemented within 24 hours of request. Cross-connect services are priced with an initial installation fee and an ongoing monthly recurring charge.

Equinix Internet Core Exchange.    This interconnection service enables direct peering interconnections between major backbone networks and providers. Equinix Internet Core Exchange is a pre-provisioned interconnection package that enables major backbones to connect their networks directly in a centralized, neutral environment for peering and transit. The service includes pre-provisioned interconnections, premium service levels and specialized customer service features to support the quality and support levels required by the largest Internet providers in the world. Internet Core Exchange services are priced with an initial installation fee and an ongoing monthly recurring charge.

Equinix GigE Exchange.    Customers may choose to connect to our GigE Exchange via a central switching fabric rather than purchase a direct physical cross connection. With a connection to this switch, a customer can aggregate multiple interconnects over one physical connection instead of purchasing individual physical cross connects. The GigE Exchange service is offered as a bundled service that includes a cabinet, power, cross connects and port charges. The service is priced by IBX with an initial installation fee and an ongoing monthly recurring charge. Individual IBX prices scale upward based on the number of participants on the exchange service.

Internet Connectivity Services.    Customers who are installing equipment in our IBX centers generally require IP connectivity or bandwidth services. Although many large customers prefer to contract directly with carriers, we will offer customers the ability to contract for these services through us from any of the major bandwidth providers. This service, which is primarily provided in Asia, is targeted to customers who require a single bill and a single point of support for all of their services contract through Equinix for their bandwidth needs. Internet Connectivity Services are priced with an initial installation fee and an ongoing monthly recurring charge based on the amount of bandwidth committed.

Managed IT Infrastructure Services

With the continued growth in Internet use, networks, service providers, enterprises and content providers are challenged to deliver fast and reliable service, while lowering costs. With over 200 ISPs and carriers located in our IBX centers, we leverage the value of network choice with our set of multi-network management and other outsourced IT services.

Professional Services.    Our IBX centers are staffed with Internet and telecommunications specialists who are on-site and available 24 hours per day, 365 days per year. These professionals are trained to perform installations of customer equipment and cabling. Professional services are custom-priced depending on customer requirements.

“Smart Hands” Services.    Our customers can take advantage of our professional “Smart Hands” service, which gives customers access to our IBX staff for a variety of tasks, when their own staff is not on site. These tasks may include equipment rebooting, power cycling, card swapping, and performing emergency equipment replacement. Services are available on-demand or by customer contract and are priced on an hourly basis.

Equinix Direct.    Equinix Direct is a managed multi-homing service that allows customers to easily provision and manage multiple network connections over a single interface. Customers can choose branded networks on a monthly basis with no minimums or long-term commitments. This service is priced with an initial install fee and ongoing monthly recurring charges.

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Equinix Mail Service.    Equinix’s enterprise messaging service is a complete outsourced solution, primarily based mainly on the Lotus Notes and Microsoft Exchange platform, which customers entrust the operation and support of their messaging applications. This service is currently only available in our Singapore location and the service is priced with an initial installation fee and an ongoing monthly recurring charge.

Managed Platform Solutions.    Managed Platform Solutions delivers pre-qualified, pre-installed, pre-hardened and fully managed systems platforms upon which customers can host their co-located applications. These platforms are available in different configuration to meet the needs of the customer. Each configuration includes the server(s), operating system, network connectivity, and system administration management as well as options for database and network administration. This service is only available in the Equinix Singapore location and the service is priced with an initial installation fee and an ongoing monthly recurring charge.

Sales and Marketing

Sales.    We use a direct sales force and channel marketing program to market our services to network, content provider, enterprise, government and Internet infrastructure businesses. We organize our sales force by customer type as well as by establishing a sales presence in diverse geographic regions, which enables efficient servicing of the customer base from a network of regional offices. In addition to our worldwide headquarters located in Silicon Valley, we have established an Asian-Pacific regional headquarters in Singapore. Our U.S. sales offices are located in New York; Boston; Reston, Virginia; Los Angeles; Honolulu; Chicago and Silicon Valley. Our Asia-Pacific sales offices are located in Hong Kong, Tokyo, Singapore and Sydney.

Our sales team works closely with each customer to foster the natural network effect of our IBX model, resulting in access to a wider potential customer base via our existing customers. As a result of the IBX interconnection model, IBX center participants encourage their customers, suppliers and business partners to come into the IBX centers. These customers, suppliers and business partners, in turn, encourage their business partners to locate in IBX centers resulting in additional customer growth. This network effect significantly reduces our new customer acquisition costs. In addition, large network providers or managed service providers may refer customers to Equinix as a part of their total customer solution.

In 2004, Equinix established a channel sales program to take advantage of the many networks that were exiting the colocation business to focus on their core competencies. These channel partners are primarily large telecommunications providers whose networks are already installed in Equinix IBX centers and who have customers that require high quality colocation, in addition to their network services.

Marketing.    To support our sales effort and to actively promote our brand in the U.S. and Asia-Pacific, we conduct comprehensive marketing programs. Our marketing strategies include an active public relations campaign and on-going customer communications programs. Our marketing efforts are focused on major business and trade publications, online media outlets, industry events and sponsored activities. Our staff holds leadership positions in key networking organizations and we participate in a variety of Internet, computer and financial industry conferences and place our officers and employees in keynote speaking engagements at these conferences. In addition to these activities, we build recognition through sponsoring or leading industry technical forums and participating in Internet industry standard-setting bodies. We continue to develop and host the industry’s most successful educational forums focused on peering technologies and peering practices for ISPs and content providers.

Competition

Our current and potential competition includes:

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Unlike other providers whose core businesses are bandwidth or managed services, we focus on neutral hubs for networks, content providers, enterprises and government. As a result, we are free of the channel conflict common at other hosting/colocation companies. We compete based on the quality of our facilities, our ability to provide a one-stop solution in our U.S. and Asia-Pacific locations, the superior performance and diversity of our network neutral strategy and the economic benefits of the aggregation of top networks and Internet businesses under one roof. Specifically, we have established relationships with a number of leading hosting companies such as IBM (our largest customer) and EDS. We expect to continue to benefit from several industry trends including the consolidation of supply in the colocation market, the need for contracting with multiple networks due to the uncertainty in the telecommunications market, enterprise customers’ growth in outsourcing and the continued growth of the large and stable systems integrators.

Employees

As of December 31, 2004, we had 468 employees. We had 315 employees based in the U.S. and 153 employees based in Asia-Pacific. Of our U.S. employees, we had 192 based at our corporate headquarters in Foster City, California and our regional sales offices. Of those employees, 77 were in engineering and operations, 66 were in sales and marketing and 49 were in management and finance. We had 123 employees based at our IBX centers in Chicago, Illinois; Dallas, Texas; Honolulu, Hawaii; Los Angeles and Silicon Valley, California; New York, New York; and the Washington, D.C. area. Of our Asia-Pacific employees, we had 98 at our Asia-Pacific headquarters in Singapore and our other regional offices. Of those employees, 31 were in engineering and operations, 26 were in sales and marketing and 41 were in management and finance. We had 55 employees based at our IBX centers in Hong Kong, Singapore, Sydney, and Tokyo.

Available Information

We were incorporated in Delaware in June 1998. We are required to file reports under the Exchange Act with the SEC. You may read and copy our materials on file with the SEC at the SEC’s Public Reference Room at 450 Fifth Street, NW, Washington, DC 20549. You may obtain information regarding the SEC’s Public Reference Room by calling the SEC at 1-800-SEC-0330. The SEC also maintains an Internet website at http://www.sec.gov that contains reports, proxy and information statements and other information.

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You may also obtain copies of our annual report on Form 10-K, our quarterly reports on Form 10-Q and our current reports on Form 8-K by visiting the investor relations page on our website, www.equinix.com. Information contained on our website is not part of this annual report on Form 10-K.

ITEM 2.    PROPERTIES

Our executive offices are located in Foster City, California, and we also have sales offices in several cities throughout the United States. Our Asia-Pacific headquarter office is located in Singapore and we also have some office space in Hong Kong and Tokyo, Japan. We have entered into leases for IBX centers in Ashburn, Virginia; Chicago, Illinois; Dallas, Texas; Honolulu, Hawaii; Los Angeles, San Jose and Santa Clara, California; Newark and Secaucus, New Jersey; Hong Kong; Singapore; Sydney, Australia and Tokyo, Japan. We also hold a ground leasehold interest in certain unimproved real property in San Jose, California, consisting of approximately 40 acres.

ITEM 3.    LEGAL PROCEEDINGS

On July 30, 2001 and August 8, 2001, putative shareholder class action lawsuits were filed against us, certain of our officers and directors (the “Individual Defendants”), and several investment banks that were underwriters of our initial public offering. The cases were filed in the United States District Court for the Southern District of New York, purportedly on behalf of investors who purchased our stock between August 10, 2000 and December 6, 2000. In addition, similar lawsuits were filed against approximately 300 other issuers and related parties. The purported class action alleges violations of Sections 11 and 15 of the Securities Act of 1933 (the “1933 Act”) and Sections 10(b), Rule 10b-5 and 20(a) of the Securities Exchange Act of 1934 (the “1934 Act”) against the Company and Individual Defendants. The plaintiffs have since dismissed the Individual Defendants without prejudice. The suits allege that the underwriter defendants agreed to allocate stock in our initial public offering to certain investors in exchange for excessive and undisclosed commissions and agreements by those investors to make additional purchases in the aftermarket at pre-determined prices. The plaintiffs allege that the prospectus for our initial public offering was false and misleading and in violation of the securities laws because it did not disclose these arrangements. The action seeks damages in an unspecified amount. On February 19, 2003, the Court dismissed the Section 10(b) claim against the Company, but denied the motion to dismiss the Section 11 claim.

In July 2003, a Special Litigation Committee of the Equinix Board of Directors approved a settlement agreement and related agreements which set forth the terms of a settlement between the Company, the Individual Defendants, the plaintiff class and the vast majority of the other approximately 300 issuer defendants and the individual defendants currently or formerly associated with those companies. Among other provisions, the settlement provides for a release of the Company and the individual defendants and the Company’s agreeing to assign away, not assert, or release certain potential claims the Company may have against its underwriters. The settlement agreement also provides a guaranteed recovery of $1 billion to plaintiffs for the cases relating to all of the approximately 300 issuers. To the extent that the underwriter defendants settle all of the cases for at least $1 billion, no payment will be required under the issuers’ settlement agreement. To the extent that the underwriter defendants settle for less than $1 billion, the issuers are required to make up the difference. It is anticipated that any potential financial obligation of Equinix to plaintiffs pursuant to the settlement, currently such claims are expected to be less than $3.4 million, will be covered by existing insurance and we do not expect that the settlement will involve any payment by the Company. The Company has no information as to whether there are any material limitations on the expected recovery by other issuer defendants of any potential financial obligation to plaintiffs from their own insurance carriers. The settlement agreement has been submitted to the Court for approval. The underwriter defendants have filed objections to the settlement agreement. As approval by the Court cannot be assured, the Company is unable at this time to determine whether the outcome of the litigation would have a material impact on its results of operations, financial condition or cash flows.

On October 13, 2004, the Court certified a Section 11 class in four of the six cases that were the subject of class certification motions and determined that the class period for Section 11 claims is the period between the

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IPO and the date that unregistered shares entered the market. The Court noted that its decision on those cases is intended to provide strong guidance to all parties regarding class certification in the remaining cases. Plaintiffs have not yet moved to certify a class in the Equinix case. Until the settlement is finalized and approved by the Court, or in the event such settlement is not approved, we and our officers and directors intend to continue to defend the actions vigorously.

ITEM 4.    SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

None during the fourth quarter of 2004.

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PART II

Our common stock is traded on the Nasdaq National Market System under the symbol EQIX. Our common stock began trading in August 2000. The following table sets forth on a per share basis the low and high closing prices of our common stock as reported by the Nasdaq National Market during the last two years.

As of December 31, 2004, we had issued 18,999,468 shares of our common stock held by approximately 458 registered holders.

We have never declared or paid any cash dividends on our common stock and we do not anticipate paying cash dividends in the foreseeable future. We currently intend to retain our earnings, if any, for future growth. Future dividends on our common stock, if any, will be at the discretion of our board of directors and will depend on, among other things, our operations, capital requirements and surplus, general financial condition, contractual restrictions and such other factors as our board of directors may deem relevant.

The effective date of the Registration Statement for our initial public offering, filed on Form S-1 under the Securities Act of 1933 (File No. 333-93749), was August 10, 2000. The class of securities registered was common stock. There has been no change to the disclosure contained in the Company’s report on Form 10-Q for the quarter ended September 30, 2000 regarding the use of proceeds generated by the Company’s initial public offering of its common stock.

During the quarter ended December 31, 2004, we did not issue or sell any new securities.

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Equity Compensation Plan Information

The following table provides information as of December 31, 2004 with respect to the shares of the Company’s common stock that may be issuable under the Company’s existing equity compensation plans.

The following information is as of December 31, 2004:

The following equity compensation plan of the Company that was in effect as of December 31, 2004 was adopted without the approval of the Company’s security holders:

The Equinix 2001 Supplemental Stock Plan was adopted by the board of directors effective September 26, 2001. The Company has reserved 1,493,961 shares of common stock for issuance under the 2001 Supplemental Stock Plan. Nonstatutory options and restricted stock awards may be granted under the 2001 Supplemental Stock Plan to employees of the Company (or any parent or subsidiary corporation) who are neither officers nor Board members at the time of grant or to consultants. All option grants will have an exercise price per share equal to not less than 85% of the fair market value per share of common stock on the grant date. Each option will vest in installments over the optionee’s period of service with the Company. The purchase price for newly issued restricted shares awarded under the 2001 Supplemental Stock Plan may be paid in cash, by promissory note or by the rendering of past or future services. As of December 31, 2004, options covering 35,132 shares of common stock were outstanding under the 2001 Supplemental Stock Plan, 1,390,982 shares remained available for future option grants, and options covering 67,847 shares had been exercised. The options will vest on an accelerated basis in the event the Company is acquired and those options are not assumed or replaced by the acquiring entity. An option or award will become fully exercisable or fully vested if the holder’s employment or service is involuntarily terminated within 18 months following the acquisition. The Board may amend or terminate the 2001 Supplemental Stock Plan at any time. The 2001 Supplemental Stock Plan will continue in effect indefinitely unless the board decides to terminate the plan earlier.

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ITEM 6.    SELECTED FINANCIAL DATA

The following statement of operations data for the five years ended December 31, 2004 and the balance sheet data as of December 31, 2004, 2003, 2002, 2001 and 2000 have been derived from our audited consolidated financial statements and the related notes to the financial statements. Our historical results are not necessarily indicative of the results to be expected for future periods. The following selected consolidated financial data for the three years ended December 31, 2004 and as of December 31, 2004 and 2003, should be read in conjunction with our consolidated financial statements and the related notes to the consolidated financial statements and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included elsewhere in this Annual Report on Form 10-K.

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The following commentary should be read in conjunction with the financial statements and related notes contained elsewhere in the Annual Report on Form 10-K. The information in this discussion contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such statements are based upon current expectations that involve risks and uncertainties. Any statements contained herein that are not statements of historical fact may be deemed to be forward-looking statements. For example, the words “believes,” “anticipates,” “plans,” “expects,” “intends” and similar expressions are intended to identify forward-looking statements. Our actual results and the timing of certain events may differ significantly from the results discussed in the forward-looking statements. Factors that might cause such a discrepancy include, but are not limited to, those discussed in “Liquidity and Capital Resources” and “Risk Factors” below. All forward-looking statements in this document are based on information available to us as of the date hereof and we assume no obligation to update any such forward-looking statements.

Overview

Equinix provides network neutral colocation, interconnection and managed services to enterprises, content companies and systems integrators and the world’s largest networks. Through our 15 IBX centers in the U.S. and Asia-Pacific, customers can directly interconnect with each other for critical traffic exchange requirements. As of December 31, 2004, we had IBX centers totaling an aggregate of approximately 1.4 million gross square feet in the Chicago, Dallas, Honolulu, Los Angeles, New York, Silicon Valley and Washington, D.C. areas in the United States and Hong Kong, Singapore, Sydney and Tokyo in the Asia-Pacific region.

In our IBX centers, customers can directly interconnect with each other for critical traffic exchange requirements. Direct interconnection to our aggregation of networks, which serve more than 90% of the world’s Internet routes, allows our customers to increase performance while significantly reducing costs. Based on our network neutral model and the quality of our IBX centers, we believe we have established a critical mass of customers comprised of networks, content providers and other enterprise companies. As more customers locate in our IBX centers, it benefits their suppliers and business partners to do so as well to gain the full economic and performance benefits of direct interconnection. These partners, in turn, pull in their business partners, creating a “network effect” of customer adoption. Our interconnection services enable scalable, reliable and cost-effective interconnection and traffic exchange thus lowering overall cost and increasing flexibility.

This critical mass of customers and the resulting network effect, combined with our improved financial position achieved through the completion of a series of financing transactions has resulted in an acceleration of new customer growth and related revenue bookings. Our current financial stability and focused business model have been important factors in this acceleration, both from new and existing customers. While we had generated negative operating cashflow in each annual period since inception through the quarter ended June 30, 2003, commencing the quarter ended September 30, 2003 we started to generate positive operating cash flow. During this quarter, our revenues grew to a level sufficient to meet our operating cash requirements for our predominantly fixed cost structure related to our existing IBX centers. We considered this quarter to be the inflection point in our business model whereby our revenues were sufficient, on an ongoing basis, to meet all our operating costs and working capital requirements. Given a large component of our cost of revenues related to our existing IBX centers are fixed in nature, we anticipate any growth in revenues will have a significant incremental flow-through to gross profit. Since reaching this point in our operating history, we have consistently generated operating cashflows for the past six quarters and we continue to expect to generate operating cash flows in 2005 and beyond at levels sufficient to meet our cash requirements to fund our capital expenditures, debt service and corporate overhead requirements.

Historically, our market has been served by large telecommunications carriers who have bundled their telecommunication products and services with their colocation offerings. During 2003, a number of these

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telecommunication carriers reduced their colocation footprint as they exited under-performing markets. In addition, one major telecommunications company, Sprint, announced their plans to exit the colocation and hosting market in order to focus on their core service offerings, while another telecommunications company, Cable & Wireless Plc, sold their U.S. assets to another telecommunications company, Savvis Communications Corp, in a bankruptcy auction. Each of these colocation providers owns and operates a network. We do not own or operate a network, yet have greater than 200 networks operating out of our IBX centers. As a result, we are able to offer our customers a substantial choice of networks given our network neutrality thereby allowing our customers to choose from numerous network service providers. We believe this is a distinct and sustainable competitive advantage, especially when the telecommunications industry is experiencing many business challenges and changes as evidenced by the numerous bankruptcies and consolidations within this industry during the past several years. Furthermore, for those customers who do require a more fully managed solution, certain of our other customers, such as IBM and EDS, can provide such a solution within our network rich IBX centers.

Strategically, we will continue to look at attractive opportunities to grow our market share and selectively improve our footprint and service streams, such as our acquisition of the Sprint property in Santa Clara in December 2003 and our 2004 expansions in the Washington, D.C. and Silicon Valley area markets (see Recent Developments below). However, we will continue to be very selective with any similar opportunity. As was the case with these recent expansions in the Silicon Valley and Washington, D.C. area markets, the criteria will be quality of the design, access to networks, capacity availability in current market location, amount of incremental investment required by us in the targeted property, lead-time to breakeven and in-place customers. Like our recent expansions, the right combination of these factors may be attractive for us. Dependent on the particular deal, these acquisitions may require upfront cash payments and additional capital expenditures in order to bring these centers up to Equinix standards.

Recent Developments

During February 2004, we sold $86.3 million in aggregate principal of 2.5% convertible subordinated debentures due 2024 to qualified institutional buyers. We refer to this transaction as the “convertible debenture offering.” We used the net proceeds from the convertible debenture offering primarily to repay all amounts outstanding under our credit facility and two of our other debt facilities. In addition, we used the proceeds received to redeem our 13% senior notes, which had a total of $30.5 million of principal outstanding. The effective date of the redemption was March 12, 2004. The redemption price for the senior notes was equal to 106.5% of their principal amount plus accrued and unpaid interest to the redemption date.

On March 26, 2004, holders of our 10% $10.0 million convertible secured notes issued in connection with the Crosslink financing, converted the $10.0 million of principal into 2.5 million shares of our common stock. We refer to this transaction as the “Crosslink conversion.”

We recorded a significant loss on debt extinguishment and conversion totaling $16.2 million during the quarter ended March 31, 2004, primarily related to the non-cash write-off of debt issuance costs and discounts in connection with the various debt repayments, redemptions and conversions of the underlying debt facilities extinguished or converted, as well as the cash premium that we paid on our 13% senior notes.

In April 2004, we entered into a long-term lease for a 95,000 square foot data center in the Washington, D.C. metro area. This data center is adjacent to the Company’s existing Washington D.C. metro area IBX. This lease includes the leasing of all of the IBX plant and machinery equipment located in the building. Both the building and equipment components of this lease are being accounted for as a capital lease. We took possession of this property during the fourth quarter of 2004, and as a result, recorded property and equipment assets, as well as a capital lease obligation, totaling $35.3 million. Payments under this lease, which commenced in November 2004, will be made through 2019 at an effective interest rate of 8.50% per annum. We intend to place customers in this center in 2005.

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In December 2004, we entered into a long-term lease for a 103,000 square foot data center in the Silicon Valley area. This data center is close to our existing IBX centers in the Silicon Valley, and expands the global Equinix footprint to approximately 1.4 million square feet. This new lease will add an additional $34.2 million in cumulative monthly lease payments through 2020, commencing February 2005. We will take possession of this property during the first quarter of 2005. We currently intend to place customers in this data center in 2005. Concurrent with the signing of this lease, we also purchased the assets located in this data center and entered into an agreement to interconnect all three of our Silicon Valley IBX centers to each other through redundant dark fiber links managed by us. This will allow our customers to have access to all the networks and customers in each of the three Silicon Valley IBXs. We are currently evaluating the accounting treatment for this lease, and related agreements, and will have this evaluation completed in March 2005.

In December 2004, in light of the availability of fully built-out data centers in select markets at costs significantly below those costs we would incur in building out new space, we made the decision to exit leases for excess space adjacent to one of our New York metro area IBXs, as well as space on the floor above our original Los Angeles IBX. As a result of our decision to exit these spaces, we recorded a restructuring charge totaling $17.7 million, which represents the present value of our estimated future cash payments, net of any estimated subrental income and expense, through the remainder of these lease terms, as well as the write-off of all remaining property and equipment attributed to the excess space on the floor above our Los Angeles IBX. We entered into a two-year sublease agreement for the excess space in the New York metro area and are currently evaluating opportunities related to our excess space in Los Angeles.

In December 2004, we entered into a $25.0 million line of credit arrangement with Silicon Valley Bank that matures in December 2006. This facility is a $25.0 million revolving line of credit which, at our election, up to $10.0 million may be converted into a 24-month term loan, repayable in eight quarterly installments. We refer to this transaction as the “Silicon Valley Bank credit line.” Borrowings under the Silicon Valley Bank credit line bear interest at floating interest rates, plus applicable margins, based either on the prime rate or LIBOR. As of December 31, 2004, the Silicon Valley Bank credit line had an interest rate of 4.40% per annum; however, through the date of filing of this report on Form 10-K, we have not drawn down any amounts from this line of credit. The Silicon Valley Bank credit line also features sublimits, which allows us to issue letters of credit, enter into foreign exchange forward contracts and make advances for cash management services. Our utilization under any of these sublimits would have the effect of reducing the amount available for borrowing under the Silicon Valley Bank credit line during the period that such sublimits remain utilized and outstanding. As of December 31, 2004, we had utilized $3.2 million under the letters of credit sublimit with the issuance of three letters of credit and, as a result, reduced the amount of borrowings available to us from $25.0 million to $21.8 million. The Silicon Valley Bank credit line is secured by substantially all of our domestic assets and contains numerous covenants, including financial covenants, such as maintaining minimum cash balance levels and meeting minimum quarterly revenue targets, which we are in full compliance of. The Silicon Valley Bank credit line provides us with additional liquidity and financing flexibility.

In January 2005, we converted 95% of the outstanding convertible secured notes and accrued and unpaid interest, held by STT Communications Ltd., into 4.1 million shares of our preferred stock, which was subsequently converted into 4.1 million shares of our common stock in February 2005. The remaining 5% of the convertible secured notes, totaling $1.9 million, that remain outstanding will be eligible for conversion by Equinix in early 2006 into approximately 250,000 shares (including anticipated interest expense to be incurred during 2005 and early 2006), provided that the closing price of our common stock exceeds $32.12 per share for thirty consecutive trading days. We refer to this transaction as the “STT convertible secured notes conversion.”

The Combination, Financing, Senior Note Exchange and Crosslink Financing

In October 2002, we entered into agreements to consummate a series of related acquisition and financing transactions. These transactions closed on December 31, 2002. Under the terms of these agreements, we combined our business with two similar businesses, that of i-STT Pte Ltd, or i-STT, and Pihana Pacific, Inc., or

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Pihana. i-STT’s business was based in Singapore, with operations in Singapore and a joint venture in Thailand. Pihana’s business was based in Hawaii, with operations in Honolulu, Los Angeles, Hong Kong, Singapore, Sydney and Tokyo. In connection with the acquisition of i-STT and Pihana, we issued approximately 3.5 million shares of our common stock and approximately 1.9 million shares of our Series A preferred stock. We refer to this transaction as the “combination.” In conjunction with the combination, we issued to i-STT’s former parent company, STT Communications Ltd., or STT Communications, a $30.0 million convertible secured note in exchange for cash. We refer to this transaction as the “financing.”

In connection with the combination and financing, we amended the terms of the indenture governing our senior notes and extinguished $116.8 million of our senior notes in exchange for a combination of 1.9 million shares of our common stock and $15.2 million of cash. We refer to this transaction as the “senior note exchange.” Because we extinguished the debt in the senior note exchange at a significant discount, we recognized a substantial gain on debt extinguishment during the fourth quarter of 2002.

Furthermore, in conjunction with the combination, financing and senior note exchange, we amended our credit facility, and on December 31, 2002, we completed a 32 for 1 reverse stock split of our common stock in order to comply with Nasdaq initial listing requirements. Unless otherwise noted, all share and per share amounts in this Form 10-K have been adjusted to give effect to the reverse stock split.

In April 2003, Equinix and certain of our subsidiaries and STT Communications entered into agreements with various entities affiliated with Crosslink Capital for a $10.0 million cash investment in Equinix in the form of additional convertible secured notes. This transaction closed in June 2003. We refer to this transaction as the “Crosslink financing.”

Critical Accounting Policies and Estimates

The preparation of our financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. On an on-going basis, management evaluates its estimates and judgments. Management bases its estimates and judgments on historical experience and on various other factors that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

Management believes the following critical accounting policies, among others, affect its more significant judgments and estimates used in the preparation of its consolidated financial statements:

Revenue Recognition and Allowance for Doubtful Accounts.    We derive more than 90% of our revenues from recurring revenue streams, consisting primarily of (1) colocation services, such as from the licensing of

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cabinet space and power; (2) interconnection services, such as cross connects and Gigabit Ethernet ports and (3) managed infrastructure services, such as Equinix Direct, bandwidth and other e-business services such as mail service and managed platform solutions. The remainder of our revenues are from non-recurring revenue streams, such as from the recognized portion of deferred installation revenues, professional services, contract settlements and equipment sales. Revenues from recurring revenue streams are billed monthly and recognized ratably over the term of the contract, generally one to three years. Fees for the provision of e-business services are recognized progressively as the services are rendered in accordance with the contract terms, except where the future costs cannot be estimated reliably, in which case fees are recognized upon the completion of services. Non-recurring installation fees, although generally paid in a lump sum upon installation, are deferred and recognized ratably over the term of the related contract or expected customer relationship. Professional service fees are recognized in the period in which the services were provided and represent the culmination of the earnings process as long as they meet the criteria for separate recognition under EITF Abstract No. 00-21, “Revenue Arrangements with Multiple Deliverables.” Revenue from bandwidth and equipment is recognized on a gross basis in accordance with EITF Abstract No. 99-19, “Recording Revenue as a Principal versus Net as an Agent”, primarily because we act as the principal in the transaction, take title to products and services and bear inventory and credit risk. To the extent we do not meet the criteria for gross basis accounting for bandwidth and equipment revenue, we record the revenue on a net basis. Revenue from contract settlements is recognized on a cash basis when no remaining performance obligations exist to the extent that the revenue has not previously been recognized.

We occasionally guarantee certain service levels, such as uptime, as outlined in individual customer contracts. To the extent that these service levels are not achieved, we reduce revenue for any credits given to the customer as a result. We generally have the ability to determine such service level credits prior to the associated revenue being recognized, and historically, these credits have not been significant.

Revenue is recognized only when the service has been provided and when there is persuasive evidence of an arrangement, the fee is fixed or determinable and collection of the receivable is reasonably assured. It is customary business practice to obtain a signed master sales agreement and sales order prior to recognizing revenue in an arrangement. We assess collection based on a number of factors, including past transaction history with the customer and the credit-worthiness of the customer. We generally do not request collateral from our customers, although in certain cases we obtain a security interest in a customer’s equipment placed in our IBX centers or obtain a deposit. If we determine that collection of a fee is not reasonably assured, we defer the fee and recognize revenue at the time collection becomes reasonably assured, which is generally upon receipt of cash. In addition, we also maintain an allowance for doubtful accounts for estimated losses resulting from the inability of our customers to make required payments for those customers that we had expected to collect the revenues. If the financial condition of our customers were to deteriorate or if they become insolvent, resulting in an impairment of their ability to make payments, allowances for doubtful accounts may be required. Management specifically analyzes accounts receivable and current economic news and trends, historical bad debts, customer concentrations, customer credit-worthiness and changes in customer payment terms when evaluating revenue recognition and the adequacy of our reserves. A specific bad debt reserve of up to the full amount of a particular invoice value is provided for certain problematic customer balances. A general reserve is established for all other accounts based on the age of the invoices. Delinquent account balances are written-off after management has determined that the likelihood of collection is not probable.

Our customer base has historically been composed of businesses throughout the U.S. Commencing in the 2003 fiscal year our revenues included revenues from our newly-acquired Asia-Pacific operations. For the year ended December 31, 2003 our revenues were split approximately 85% in the U.S. and 15% in Asia-Pacific. For the year ended December 31, 2004 our revenues were split approximately 87% in the U.S. and 13% in Asia-Pacific. We perform ongoing credit evaluations of our customers. As of December 31, 2004, one customer, IBM, accounted for 13% of annual revenues and 12% of accounts receivable. As of December 31, 2003, this same customer accounted for 15% of annual revenues and 11% of accounts receivable. As of December 31, 2002, this same customer accounted for 20% of annual revenues. No other single customer accounted for greater than 10% of accounts receivable or annual revenues for the periods presented.

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Accounting for Income Taxes.    Income taxes are accounted for under the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Valuation allowances are established when necessary to reduce deferred tax assets to the amounts that are expected more likely than not to be realized in the future. The assessment of whether or not a valuation allowance is required often requires significant judgment including the forecast of future taxable income and the evaluation of tax planning strategies in each of the jurisdictions in which we operate. We also account for any income tax contingencies in accordance with SFAS No. 5, “Accounting for Contingencies.”

We currently have provided for a full valuation allowance against our net deferred tax assets. We have considered the positive and negative evidences affecting the assessment of a full valuation allowance. Based on the available objective evidence, management does not believe it is more likely than not that the net deferred tax assets will be realizable in the future. Should we determine that we would be able to realize our deferred tax assets in the foreseeable future, a reversed adjustment to the valuation allowance would benefit net income in the period such determination is made.

In preparing the consolidated financial statement, we are required to estimate our income taxes in each of the jurisdictions in which we operate. The determination of income taxes also involves estimating the impact of additional taxes resulting from tax examinations and uncertainties in the application of complex tax laws and regulations. Accruals for tax contingencies require management to estimate the actual outcome of any such audits and the impact of uncertainties. Actual results could vary from these estimates.

Estimated and Contingent Liabilities.    Management estimates exposure on certain liabilities and contingent liabilities, such as property taxes and litigation, based on the best information available at the time of determination. With respect to real and personal property taxes, management records what it can reasonably estimate based on prior payment history, current landlord estimates or estimates based on current or changing fixed asset values in each specific municipality, as applicable. However, there are circumstances beyond our control whereby the underlying value of the property or basis for which the tax is calculated on said property may change, such as a landlord selling the underlying property of one of our IBX center leases or a municipality changing the assessment value in a jurisdiction and, as a result, our property tax obligations may vary from period to period. Based upon the most current facts and circumstances, we make the necessary property tax accruals for each of our reporting periods. However, revisions in our estimates of the potential or actual liability could materially impact our results of operation and financial position.

For litigation claims, when management can reasonably estimate the range of loss and when an unfavorable outcome is probable, a contingent liability is recorded. For current legal proceedings, management believes that it has adequate legal defenses and that the ultimate outcome of these actions will not have a material effect on the Company’s financial position, results of operations and cash flows. Furthermore, because of the uncertainties as to the outcome of these proceedings and since no range of loss can be estimated at this time, management has determined that no accrual is needed. As additional information becomes available, we will assess the potential liability related to our pending litigation and revise our estimates. Revisions in our estimates of the potential liability could materially impact our results of operation and financial position.

Accounting for Property and Equipment.    Property and equipment are stated at original cost, or in the case of IBX centers that we acquire, at fair value at the time of acquisition. Depreciation is computed using the straight-line method over the estimated useful lives of the respective assets, generally two to five years for non-IBX equipment and seven to twelve years for IBX equipment. Leasehold improvements and assets acquired under capital lease are amortized over the shorter of the lease term or the estimated useful life of the asset or improvement.

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Should management determine that the actual useful lives of our property and equipment placed into service is less than originally anticipated, or if any of our property and equipment was deemed to have incurred an impairment, additional depreciation, or an impairment charge would be required, which would decrease net income in the period such determination was made. Conversely, should management determine that the actual useful lives of its property and equipment placed into service was greater than originally anticipated, less depreciation may be required, which would increase net income in the period such determination was made.

Impairment of Long-Lived Assets, Including Goodwill.    We account for the impairment of long-lived assets in accordance with Statement of Financial Accounting Standard, or SFAS, No. 144, “Accounting for the Impairment or Disposal of Long-Lived Assets”, or in the case of goodwill, in accordance with SFAS No. 142, “Goodwill and Other Intangible Assets.” We evaluate the carrying value of our long-lived assets, consisting primarily of our IBX centers and goodwill, whenever certain events or changes in circumstances indicate that the carrying amount of these assets may not be recoverable or at least on an annual basis during the fourth quarter for goodwill. Such events or circumstances include, but are not limited to, a prolonged industry downturn, a significant decline in our market value or significant reductions in projected future cash flows. We currently operate in one reportable segment; however our goodwill is attributed solely to our Singapore reporting unit.

Significant judgments and assumptions are required in the forecast of future operating results used in the preparation of the estimated future cash flows, including profit margins, long-term forecasts of the amounts and timing of overall market growth and our percentage of that market, groupings of assets, discount rates and terminal growth rates. In addition, significant estimates and assumptions are required in the determination of the fair value of our tangible long-lived assets, including replacement cost, economic obsolescence, and the value that could be realized in orderly liquidation. Changes in these estimates could have a material adverse effect on the assessment of our long-lived assets, thereby requiring us to write down the assets. Our net long-lived assets as of December 31, 2004 and December 31, 2003, included property and equipment of $343.4 million and $343.6 million, respectively, and goodwill and other identifiable intangible assets of $22.3 million and $23.5 million, respectively.

Accounting for Leases and IBX acquisitions.    We currently have 15 IBX centers in the U.S. and Asia-Pacific. Our current strategy has been to enter into long-term leases for our IBX centers rather than to purchase and own these properties. The majority of our IBX centers are accounted for as operating leases; however, in April 2004, we entered into a long-term lease for a 95,000 square foot data center in the Washington, D.C. metro area. This lease, which includes the leasing of all of the IBX plant and machinery equipment located in the building, is a capital lease. We account for leases in accordance with SFAS No. 13, “Accounting for Leases.” Although we do not have title to any of the leased assets contained in our new Washington, D.C. metro area IBX, this lease qualified for capital lease treatment as a result of the present value of the minimum lease payments equaling or exceeding 90% of the fair value of the leased property. Our analysis of this lease required significant judgment and estimates in order to assess the fair value of the leased property and determine our incremental borrowing rate given no implicit rate was defined within the lease to allow us to calculate the present value of the minimum lease payments. In addition, as this lease contained land, building and equipment elements, we had to separate the individual elements and analyze each element separately.

While our first seven IBX centers were designed and built by us, in light of the availability of fully built-out data centers in select markets at costs significantly below the cost we would incur in building out new space, we have altered our business strategy to acquire fully built-out data centers rather than build out our own data centers in order to meet our IBX expansion needs. Each individual IBX expansion transaction, while still in the form of a long-term lease, is unique. For example, with respect to the Santa Clara IBX acquisition in December 2003, rather than enter into a long-term lease for both the building and data center plant and equipment like the Washington, D.C. metro area IBX transaction mentioned above, we leased only the building in Santa Clara and purchased the data center property and equipment located in the building. Yet, the building lease had payment terms which were at a premium to prevailing market rates for similar properties at the time of signing the lease. As a result, we recorded an unfavorable lease liability, which is being amortized into rent expense over the term

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of the lease. Also, given that the Santa Clara data center was an operating data center, unlike the vacant Washington, D.C. metro area data center, we were required to negotiate with various customers located in the data center and enter into new contracts with these customers. In addition, we hired a number of the employees that were already working in this data center. As a result, we recorded several intangible assets.

In summary, each individual data center expansion will require a significant amount of judgment and management estimates in order to properly address the accounting treatment.

Accounting for Restructuring Charges.    We have recorded restructuring charges in three of the past five years as we modified our business strategy in light of changing economic circumstances. Most recently, in December 2004, in light of the availability of fully built-out data centers in select markets at costs significantly below those costs we would incur in building out new space, we made the decision to exit leases for excess space adjacent to one of our New York metro area IBXs, as well as space on the floor above our original Los Angeles IBX. As a result of our decision to exit these spaces, we recorded a restructuring charge totaling $17.7 million, which represents the present value of our estimated future cash payments, net of any estimated subrental income and expense, through the remainder of these lease terms, as well as the write-off of all remaining property and equipment attributed to the excess space on the floor above our Los Angeles IBX. We entered into a two-year sublease agreement for the excess space in the New York metro area and are currently evaluating opportunities related to our excess space in Los Angeles.

We account for such activities in accordance with SFAS No. 146, “Accounting for Costs Associated with Exit or Disposal Activities.” Under the provisions of SFAS No. 146, we had to estimate the future cash payments required to exit these two leases, net of any estimated sub-rental income and expense, through the remainder of these lease terms and then determine the present value of such future cash flows to record the appropriate restructuring charge. In future periods, we will record accretion expense to accrete our accrued restructuring liability up to an amount equal to the total estimated future cash payments necessary to complete the exit of these leases. This restructuring activity required a significant amount of judgment and management estimates in order to determine a reasonable scenario of future net cash flows required to exit these leases, as well as to determine the appropriate discount rate to calculate the present value of the future net cash flows. Should the actual lease exit costs differ from our estimates, we may be required to adjust our restructuring charges associated with these two leases, which would impact net income in the period such determination was made. In addition, in the future, circumstances may change which would require us to record additional restructuring charges, which would require similar levels of judgment and management estimates in order to determine the appropriate restructuring charge to record.

Accounting for Stock-Based Compensation.    We account for stock-based compensation plans in accordance with SFAS No. 123, “Accounting for Stock-Based Compensation.” As permitted under SFAS No. 123, we use the intrinsic value-based method of Accounting Principles Board (“APB”) Opinion No. 25, “Accounting for Stock Issued to Employees,” to account for our employee stock-based compensation plans. Under APB Opinion No. 25, compensation expense is based on the difference, if any, on the date of grant, between the fair value of our shares and the exercise price of the option. Unearned deferred compensation resulting from employee option grants is amortized on an accelerated basis over the vesting period of the individual options, in accordance with FASB Interpretation No. 28, “Accounting for Stock Appreciation Rights and Other Variable Stock Option or Award Plans.” We have also adopted the disclosure requirements of SFAS No. 148, “Accounting for Stock-Based Compensation—Transition and Disclosure—An Amendment of SFAS No. 123.”

Primarily as a result of employee stock options being granted at exercise prices below fair market value prior to the Company’s initial public offering (IPO) in August 2000, the Company recorded a deferred stock-based compensation charge on its balance sheet of $54,537,000 in 2000, which was amortized over the four-year vesting life of these individual stock options net of the reversal of any previously recorded accelerated stock-based compensation expense due to the forfeitures of those stock options prior to vesting. The amortization of the

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deferred stock-based compensation related to these pre-IPO stock options ended in August 2004. Subsequent to our IPO, since we generally only grant stock options at fair value on the date of grant, we currently do not have any significant deferred stock-based compensation remaining to be amortized. As of December 31, 2004, deferred stock-based compensation on our balance sheet totaled $260,000, and for the years ended December 31, 2004, 2003 and 2002, we recognized stock-based compensation expense of $1,467,000, $2,905,000 and $6,878,000. Had the Company recognized stock-based compensation under the fair value provisions of SFAS No. 123, the Company would have recognized stock-based compensation expense of $20,756,000, $10,238,000 and $12,866,000 for the years ended December 31, 2004, 2003 and 2002, respectively, using the Black-Scholes option-pricing model with assumptions appropriate to this three-year period. For further detailed information on how we calculated these pro forma stock-based compensation charges, see Note 1 of our “Notes to Consolidated Financial Statements” in Item 8 of this Form 10-K below.

In December 2004, the FASB issued SFAS No. 123(R), “Share-Based Payment.” SFAS No. 123(R) revises SFAS No. 123, “Accounting for Stock-Based Compensation” and requires companies to expense the fair value of employee stock options and other forms of stock-based compensation, such as employee stock purchase plans and restricted stock awards. In addition, SFAS No. 123(R) supercedes Accounting Principles Board Opinion (APB) No. 25, “Accounting for Stock Issued to Employees” and amends SFAS No. 95, “Statement of Cash Flows.” Under the provisions of SFAS No. 123(R), stock-based compensation awards must meet certain criteria in order for the award to qualify for equity classification. An award that does not meet those criteria will be classified as a liability and will need to be re-measured each period. SFAS No. 123(R) retains the requirements on accounting for the income tax effects of stock-based compensation contained in SFAS no. 123; however, it changes how excess tax benefits will be presented in the statement of cash flows. SFAS No. 123(R) is effective for reporting periods beginning after June 15, 2005. Senior management is currently considering the financial accounting, income tax and internal control implications of SFAS No. 123(R). The adoption of SFAS No. 123(R) is expected to have a significant impact on our financial position and results of operations.

Results of Operations

Years Ended December 31, 2004 and 2003

Revenues.    Our revenues for the years ended December 31, 2004 and 2003 were split between the following revenue classifications (dollars in thousands):

Our revenues for the years ended December 31, 2004 and 2003 were geographically comprised of the following (dollars in thousands):

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We recognized revenues of $163.7 million for the year ended December 31, 2004 as compared to revenues of $117.9 million for the year ended December 31, 2003, a 39% increase. We segment our business geographically between the U.S. and Asia-Pacific as further discussed below.

Our business is based on a recurring revenue model comprised of colocation, interconnection and managed infrastructure services. We consider these services recurring as once a customer has been installed in one of our IBX centers they are billed on a fixed and recurring basis each month for the duration of their contract, which is generally one to three years in length. Our recurring revenues are a significant component of our total revenues comprising 94% of our total revenues for the year ended December 31, 2004 as compared to 93% in the prior year. Historically, greater than half of our customers order new services each quarter and greater than half of our new orders come from our already installed customer base each quarter.

Our non-recurring revenues are primarily comprised of installation services related to a customer’s initial deployment and professional services that we perform. These services are considered to be non-recurring as they are billed typically once and only upon completion of the installation or professional services work performed. The non-recurring revenues are typically billed on the first invoice distributed to the customer. Installation and professional services revenues increased 34% period over period, primarily due to strong existing and new customer growth during the year. As a percent of total revenues, we expect non-recurring revenues to represent approximately 5% of total revenues in each period. Other non-recurring revenues are comprised primarily of customer settlements, which represent fees paid to us by customers who wish to terminate their contracts with us prior to their expiration.

In addition to reviewing recurring versus non-recurring revenues, we look at two other primary metrics when we analyze our revenues: 1) customer count and 2) weighted-average percentage utilization. Our customer count increased to 950 as of December 31, 2004 versus 712 as of December 31, 2003, an increase of 33%. Our weighted-average utilization rate represents the percentage of our cabinet space billing versus total cabinet space available. Our weighted-average utilization rate grew to 45% as of December 31, 2004 from 35% as of December 31, 2003. Although we have substantial capacity for growth, our utilization rates vary from market to market among our 15 worldwide IBX centers. We continue to monitor the available capacity in each of our selected markets. To the extent we have limited capacity available in a given market, it may limit our ability for growth in that market. Therefore, consistent with our lease of Sprint’s Santa Clara property in December 2003 and our expansion into the Washington, D.C. metro area market in April 2004 and further expansion into the Silicon Valley market in December 2004, we continually review available space in our other operating markets.

U.S. Revenues.    We recognized U.S. revenues of $141.6 million for the year ended December 31, 2004 as compared to $99.7 million for the year ended December 31, 2003. U.S. revenues consisted of recurring revenues of $134.3 million and $93.6 million, respectively, for the year ended December 31, 2004 and 2003, a 43% increase. U.S. recurring revenues consist primarily of colocation and interconnection services plus a nominal amount of managed infrastructure services. U.S. recurring revenues for the year ended December 31, 2004 included revenue generated from the recently acquired Santa Clara IBX center. Excluding revenue from this acquired U.S. IBX hub, the period over period growth in recurring revenues was primarily the result of an increase in orders from both our existing customers and new customer growth acquired during the period as reflected in the growth in our customer count and weighted-average utilization rate as discussed above. As noted above, historically, greater than half of our new orders come from our already installed customer base each period. We expect our U.S. recurring revenues to continue to grow and remain our most significant source of revenue for the foreseeable future.

In addition, U.S. revenues consisted of non-recurring revenues of $7.3 million and $6.1 million, respectively, for the year ended December 31, 2004 and 2003. Non-recurring revenues are primarily related to the recognized portion of deferred installation, professional services and settlement fees associated with certain contract terminations. Included in U.S. non-recurring revenues are settlement fees of $609,000 and $1.2 million, respectively, for the year ended December 31, 2004 and 2003. The $609,000 in settlement fees for the year ended

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December 31, 2004 primarily represented a bankruptcy court-mandated payment from Excite@Home. The $1.2 million in settlement fees for the year ended December 31, 2003 primarily represented bankruptcy court-mandated payments from both Worldcom and Excite@Home. Excluding any settlement fees that we may recognize in the future, we expect our U.S. non-recurring revenues to increase moderately in the foreseeable future as we continue to expand our customer base and recognize deferred non-recurring revenue attributed to certain custom projects for the U.S. government.

Asia-Pacific Revenues.    We recognized Asia-Pacific revenues of $22.1 million for the year ended December 31, 2004 as compared to $18.2 million for the year ended December 31, 2003. Asia-Pacific revenues consisted of recurring revenues of $20.2 million and $16.3 million, respectively, for the year ended December 31, 2004 and 2003, consisting primarily of colocation and managed infrastructure services. In addition, Asia-Pacific revenues consisted of non-recurring revenues of $1.9 million for both years ended December 31, 2004 and 2003. Asia-Pacific non-recurring revenues included $280,000 and $584,000, respectively, of contract settlement revenue for the year ended December 31, 2004 and 2003. Asia-Pacific revenues are generated from Hong Kong, Singapore, Sydney and Tokyo with Singapore representing approximately 52% and 77%, respectively, of the regional revenues for the year ended December 31, 2004 and 2003. Our Asia-Pacific colocation revenues are similar to the revenues that we generate from our U.S. IBX centers; however, our Singapore IBX center has additional managed infrastructure service revenue, such as mail service and managed platform solutions, which we do not currently offer in any other IBX center location. The growth in our Asia-Pacific revenues is primarily the result of an increase in the customer base in this region during the past year, particularly in Tokyo and Sydney; however, this revenue growth was partially offset by a decrease in low-margin bandwidth revenue in Singapore of approximately $3.1 million. We expect our Asia-Pacific revenues to grow over the foreseeable future.

Cost of Revenues.    Cost of revenues were $136.9 million for the year ended December 31, 2004 as compared to $128.1 million for the year ended December 31, 2003, a 7% increase. The largest cost components of our cost of revenues are depreciation, rental payments related to our leased IBX centers, utility costs including electricity and bandwidth, IBX employees’ salaries and benefits, supplies and equipment and security services. A substantial majority of our cost of revenues are fixed in nature and do not vary significantly from period to period. However, there are certain costs, which are considered variable in nature, including utilities and supplies, that are directly related to growth of services for our existing and new customer base. Given a large component of our cost of revenues are fixed in nature, we anticipate any growth in revenues will have a significant incremental flow-through to gross profit; however, power and cooling requirements are growing on a per server basis. As a result, customers are consuming an increasing amount of power per cabinet. This, combined with the fact that we do not currently control the amount of draw our customers take from installed circuits, means that our utility costs are expected to increase in the future, and we may not be successful in raising power revenues to a sufficient level to offset such expected increases in utility costs. We continue to monitor power draw and rates in each of our IBX centers.

U.S. Cost of Revenues.    U.S. cost of revenues were $118.3 million for the year ended December 31, 2004 as compared to $107.5 million for the year ended December 31, 2003. U.S. cost of revenues included $50.1 million of depreciation expense, $35,000 of stock-based compensation expense, $355,000 of accretion expense associated with our asset retirement obligations relating to our various leaseholds and $147,000 of amortization expense associated with an intangible asset related to our Santa Clara IBX center for the year ended December 31, 2004. U.S. cost of revenues included $49.9 million of depreciation expense, $59,000 of stock-based compensation expense, $562,000 of accretion expense associated with our asset retirement obligations relating to our various leaseholds and $13,000 of amortization expense associated with an intangible asset related to our Santa Clara IBX center for the year ended December 31, 2003. Excluding depreciation, stock-based compensation, accretion expense and amortization expense, U.S. cost of revenues increased period over period to $67.7 million for the year ended December 31, 2004 from $56.9 million for the year ended December 31, 2003, a 19% increase. This increase is primarily the result of the operating costs associated with the Santa Clara IBX center acquired on December 1, 2003, as well as increasing utility costs in our IBX centers, excluding the newly-

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acquired Santa Clara IBX, of $4.1 million in line with increasing customer installations and revenues attributed to this customer growth and $1.2 million of higher compensation costs in our IBX centers, excluding the newly-acquired Santa Clara IBX, including general salary increases and bonuses for our IBX staff. We continue to anticipate that our cost of revenues will increase in the foreseeable future as the occupancy levels in our U.S. IBX centers increase, however as a percent of revenues, we anticipate our cost of revenues will continue to decline.

Asia-Pacific Cost of Revenues.    Asia-Pacific cost of revenues were $18.6 million for the year ended December 31, 2004 as compared to $20.6 million for the year ended December 31, 2003. Asia-Pacific cost of revenues included $3.7 million of depreciation expense and $194,000 of non-cash rent expense associated with the value attributed to warrants issued to our landlord in connection with a lease amendment for our Hong Kong IBX center for the year ended December 31, 2004. Asia-Pacific cost of revenues included $4.4 million of depreciation expense for the year ended December 31, 2003. Excluding depreciation and non-cash rent expense, Asia-Pacific cost of revenues decreased period over period to $14.7 million for the year ended December 31, 2004 from $16.2 million for the year ended December 31, 2003, a 9% decrease. This decrease is primarily the result of (i) a decrease in bandwidth costs in Singapore associated with a corresponding decrease in low-margin bandwidth revenue in this location of approximately $2.4 million, (ii) a decrease in operating costs in Singapore as a result of the asset sale of one of our two IBX centers in Singapore that occurred during the fourth quarter of 2003 of $804,000 and (iii) the renegotiation and reduction of our Hong Kong and Tokyo lease costs, resulting in rent savings of approximately $538,000. These decreases are partially offset by some cost increases in line with increasing customer installations and revenues attributed to our customer growth in this region, including increasing utility costs in our Asia-Pacific IBX centers of $649,000. Our Asia-Pacific costs of revenues are generated in Hong Kong, Singapore, Sydney and Tokyo. There are several managed IT infrastructure service revenue streams unique to our Singapore IBX hub, such as mail service and managed platform solutions, that are more labor intensive than our service offerings in the United States. As a result, our Singapore IBX center has a greater number of employees than any of our other IBX centers, and therefore, a greater labor cost relative to our other IBX centers in the United States or other Asia-Pacific locations. We anticipate that our Asia-Pacific cost of revenues will experience moderate growth in the foreseeable future consistent with our anticipated growth in revenues in this region.

Sales and Marketing.    Sales and marketing expenses decreased to $18.6 million for the year ended December 31, 2004 from $19.4 million for the year ended December 31, 2003.

U.S. Sales and Marketing Expenses.    U.S. sales and marketing expenses increased to $13.8 million for the year ended December 31, 2004 from $12.5 million for the year ended December 31, 2003. Included in U.S. sales and marketing expenses were $119,000 and $299,000, respectively, of stock-based compensation expense and amortization expense associated with an intangible asset in connection with our Santa Clara IBX center for the years ended December 31, 2004 and 2003. Excluding stock-based compensation and amortization expense, U.S. sales and marketing expenses increased to $13.7 million for the year ended December 31, 2004 as compared to $12.2 million for the year ended December 31, 2003, a 12% increase. Sales and marketing expenses consist primarily of compensation and related costs for sales and marketing personnel, sales commissions, marketing programs, public relations, promotional materials and travel. This increase is primarily due to increased compensation costs of $1.1 million, primarily as a result of growth in our revenue bookings and an increase in the number of sales and marketing headcount. Going forward, we expect U.S. sales and marketing spending to increase at a measured rate but will decrease as a percent of revenues.

Asia-Pacific Sales and Marketing Expenses.    Asia-Pacific sales and marketing expenses decreased to $4.8 million for the year ended December 31, 2004 as compared to $6.9 million for the year ended December 31, 2003. Included in Asia-Pacific sales and marketing expenses were $1.8 million and $2.1 million, respectively, of amortization expense associated with several intangible assets associated with our Singapore operations for the years ended December 31, 2004 and 2003. Excluding amortization expense, Asia-Pacific sales and marketing expenses decreased to $3.0 million during the year ended December 31, 2004 down from $4.8 million in the prior year, primarily as a result of headcount and overall compensation cost reductions in the Singapore region last

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year of approximately 14% and a decrease in overall discretionary spending due in large part to synergistic savings as a result of the combination that closed on December 31, 2002. Our Asia-Pacific sales and marketing expenses consist of the same type of costs that we incur in our U.S. operations, namely compensation and related costs for sales and marketing personnel, sales commissions, marketing programs, public relations, promotional materials and travel. Our Asia-Pacific sales and marketing expenses are generated in Hong Kong, Singapore, Sydney and Tokyo. We expect that our Asia-Pacific sales and marketing expenses excluding amortization of intangible assets will remain relatively flat in the foreseeable future; however, as a result of the intangible assets in Singapore having now been fully amortized during December 2004, total Asia-Pacific sales and marketing expenses will decrease further commencing in 2005.

General and Administrative.    General and administrative expenses decreased to $32.5 million for the year ended December 31, 2004 from $34.3 million for the year ended December 31, 2003.

U.S. General and Administrative Expenses.    U.S. general and administrative expenses decreased to $25.9 million for the year ended December 31, 2004 as compared to $28.3 million for the year ended December 31, 2003. Included in U.S. general and administrative expenses for the year ended December 31, 2004, were $1.8 million and $1.4 million of depreciation expense and stock-based compensation expense, respectively. Included in U.S. general and administrative expenses for the year ended December 31, 2003, were $5.3 million and $2.6 million of depreciation expense and stock-based compensation expense, respectively. Depreciation and stock-based compensation expense decreased period over period as certain headquarter-based assets became fully depreciated during the year, and certain stock-based compensation costs became fully amortized. Excluding depreciation and stock-based compensation expense, U.S. general and administrative expenses increased to $22.7 million for the year ended December 31, 2004, as compared to $20.4 million for the prior year, an 11% increase. This increase is primarily due to higher professional service fees and other legal-related costs and expenses of $1.8 million, including $733,000 of external costs attributed to our Sarbanes-Oxley compliance initiatives. We continue to incur additional costs related to our Sarbanes-Oxley compliance initiative and this initiative will continue to impose additional costs on Equinix as a public company, both in the form of outside professional service fees for auditors and other advisors, and internal costs related to various devoted teams throughout the organization. We also have higher overall compensation costs of $1.9 million related to annual salary merit increases and corporate bonus programs, as well as an increase in the number of new hires over the past year. In addition, during 2004, we incurred a net charge of $190,000 related to the liquidation of certain legacy subsidiaries in Europe and we do not expect this cost to recur (we initially recorded a charge of $512,000 in the third quarter, which was offset by a reduction in the charge of $322,000 in the fourth quarter as a result of a favorable settlement reached in December 2004). These increases in costs are partially offset by some savings related to the shutdown of the Pihana corporate office in Honolulu that was completed in June 2003, and the relocation of the corporate headquarter office from Mountain View to Foster City in March 2003 totaling $1.9 million. General and administrative expenses, excluding depreciation and stock-based compensation, consist primarily of salaries and related expenses, accounting, legal and administrative expenses, professional service fees and other general corporate expenses such as our corporate headquarter office lease. Going forward we expect to see U.S. general and administrative spending increase nominally in absolute dollars, but decrease as a percent of revenues.

Asia-Pacific General and Administrative Expenses.    Asia-Pacific general and administrative expenses increased to $6.6 million for the year ended December 31, 2004 as compared to $6.0 million for the year ended December 31, 2003. Included in Asia-Pacific general and administrative expenses were $366,000 and $497,000, respectively, of depreciation expense for the year ended December 31, 2004 and 2003. Excluding depreciation, Asia-Pacific general and administrative expenses increased to $6.2 million for the year ended December 31, 2004, as compared to $5.5 million for the prior year, a 13% increase. This increase is primarily related to an increase in professional service fees of $141,000 related to our Sarbanes-Oxley compliance initiative in Singapore and higher compensation costs of $450,000 as a result of annual merit increases and corporate bonus programs. Our Asia-Pacific general and administrative expenses consist of the same type of costs that we incur in our U.S. operations, namely salaries and related expenses, accounting, legal and administrative expenses,

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professional service fees and other general corporate expenses. Our Asia-Pacific general and administrative expenses are generated in Hong Kong, Singapore, Sydney and Tokyo. Our Asia-Pacific headquarter office is located in Singapore. Most of the corporate overhead support functions that we have in the U.S. also reside in our Singapore office in order to support our Asia-Pacific operations. In addition, we have separate office locations in Hong Kong and Tokyo. We expect our Asia-Pacific general and administrative expenses will remain relatively flat or experience only moderate growth for the foreseeable future.

Restructuring Charges.    During the year ended December 31, 2004, we recorded restructuring charges of $17.7 million. In light of the availability of fully built-out data centers in select markets at costs significantly below those costs we would incur in building out new space, we made the decision in December 2004 to exit leases for excess space adjacent to one of our New York metro area IBXs, as well as space on the floor above our original Los Angeles IBX. The restructuring charges consisted of (i) a $13.9 million charge representing the present value of our estimated future cash payments, net of any estimated subrental income and expense, through the remainder of these lease terms; and (ii) a write-off of property and equipment of $3.8 million, representing the write-off of all remaining property and equipment attributed to the excess space on the floor above our Los Angeles IBX. We entered into a two-year sublease agreement for the excess space in the New York metro area and are currently evaluating opportunities related to our excess space in Los Angeles. We expect that as a result of these restructuring charges, we will realize annual savings in cost of revenues commencing in 2005 of approximately $1.8 million. As of December 31, 2004, we had total accrued restructuring charges of $14.8 million recorded as liabilities on our balance sheet related to these excess lease spaces. For further detailed information on our restructuring charges, see Note 17 of our “Notes to Consolidated Financial Statements” in Item 8 of this Form 10-K below. We did not incur any restructuring charges during the year ended December 31, 2003.

Interest Income.    Interest income increased to $1.3 million from $296,000 for the years ended December 31, 2004 and 2003, respectively. Interest income increased due to higher average cash, cash equivalent and short-term and long-term investment balances held in interest-bearing accounts during these periods, as well as to increased yields on those balances.

Interest Expense.    Interest expense decreased to $11.5 million from $20.5 million for the years ended December 31, 2004 and 2003, respectively. The decrease in interest expense was primarily attributable to the reduction in the principal balance outstanding on our credit facility during 2003 and 2004. These interest expense savings were partially offset by additional non-cash interest expense associated with the $10.0 million 10% convertible secured notes issued on June 5, 2003 as a result of the Crosslink financing. However, during the quarter ended March 31, 2004, with the proceeds from the convertible debenture offering, we fully paid off the remaining credit facility and two other debt facilities, as well as fully redeemed the remaining 13% senior notes that were outstanding. In addition, in March 2004, the $10.0 million 10% convertible secured notes issued in connection with the Crosslink financing were converted to 2.5 million shares of our common stock. As a result of these various repayments, redemption and conversion of our older debt facilities, which have been replaced with our $86.3 million 2.5% convertible subordinated debentures, our interest expense commencing with the second quarter of 2004 was significantly reduced.

Absent additional financings, we expect that our interest expense will continue to decrease in 2005 as a result of the conversion in January 2005 of the STT convertible secured notes, bearing non-cash interest at 14%. This interest savings, however, will be partially offset by additional interest expense attributed to our $35.3 million capital lease, which bears interest at 8.5%, related to our new data center in the Washington D.C. metro area.

Loss on Debt Extinguishment and Conversion.    In February 2004, with the proceeds from the convertible debenture offering, we fully paid off the remaining credit facility and two other debt facilities, as well as fully redeemed the remaining 13% senior notes that were outstanding at a premium of 106.5% through March 2004. In addition, in March 2004, the 10% $10.0 million convertible secured notes issued in connection with the Crosslink

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financing, which contained a beneficial conversion feature, were converted to 2.5 million shares of our common stock. As a result of these various repayments, redemption and conversion of our older debt facilities, we recorded a loss on debt extinguishment and conversion of $16.2 million, comprised primarily of the write-off of the various debt issuance costs and discounts associated with these various debt facilities totaling $13.7 million, as well as the premium paid to the holders of our 13% senior notes required to redeem these early and other cash transaction costs totaling $2.5 million. There was no such debt extinguishment or conversion activity during the year ended December 31, 2003.

Income Taxes.    A full valuation allowance is recorded against our deferred tax assets as management cannot conclude, based on available objective evidence, when it is more likely than not that the gross value of its deferred tax assets will be realized. However, for the year ended December 31, 2004, we recorded $153,000 of income tax expense, primarily representing income taxes related to our international subsidiaries. We have previously not incurred any significant income tax expense since inception and we do not expect to incur any significant income tax expense during 2005 and 2006.

Years Ended December 31, 2003 and 2002

Revenues.    Our revenues for the year ended December 31, 2003 and 2002 were split between the following revenue classifications (dollars in thousands):

Our revenues for the year ended December 31, 2003 and 2002 were geographically comprised of the following (dollars in thousands):

We recognized revenues of $117.9 million for the year ended December 31, 2003, as compared to revenues of $77.2 million for the year ended December 31, 2002, a 53% increase. Included in revenues for the year ended December 31, 2003, are the results of the two companies that we acquired on December 31, 2002, i-STT and Pihana, totaling $23.4 million. We segment our business geographically between the U.S. and Asia-Pacific as further discussed below.

Our business is based on a recurring revenue model comprised of colocation, interconnection and managed infrastructure services. We consider these services as recurring as once a customer has been installed in one of our IBX centers they are billed on a fixed and recurring basis each month for the duration of their contract, which is generally one to three years in length. Our recurring revenues are a significant component of our total revenues comprising 93% of our total revenues for the year ended December 31, 2003, an increase from the 85% level in the prior year. To review our revenue recognition policies for our recurring revenue streams, refer to “Critical Accounting Policies and Estimates” above.

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Our non-recurring revenues are primarily comprised of installation services related to a customer’s initial deployment and, professional services that we perform. These services are considered to be non-recurring as they are billed typically once and only upon completion of the installation or professional services work performed. The non-recurring revenues are typically billed on the first invoice distributed to the customer. Installation and professional services revenues increased 53% year over year, primarily due to strong existing and new customer growth during the year. As a percent of total revenues, we expect non-recurring revenues to represent approximately 5% of total revenues in each year. Other non-recurring revenues include equipment resales and customer settlements. This non-recurring revenue line decreased significantly from the prior year as (i) we are no longer pursuing equipment resales due a change in product strategy and (ii) the number of customer right-sizings and settlements decreased substantially during 2003. To review our revenue recognition policies for our non-recurring revenue streams, refer to “Critical Accounting Policies and Estimates” above.

In addition to reviewing recurring versus non-recurring revenues, we look at two other primary metrics when we analyze our revenues: 1) customer count and 2) percentage utilization. Our customer count increased to 712 as of December 31, 2003 versus 568 as of December 31, 2002, an increase of 25%. Our utilization rate represents the percentage of our cabinet space billing versus total cabinet space available. Our utilization rate as of December 31, 2003 was 37% versus 29% as of December 31, 2002, an increase of 28%, including our Asia-Pacific operations for both periods. Although we have substantial capacity for growth, our utilization rates vary from market to market among our 15 worldwide IBX centers. We continue to monitor the available capacity in each of our selected markets. To the extent we have limited capacity available in a given market, it may limit our ability for growth in that market. Therefore, consistent with our acquisition of the Sprint’s Santa Clara property in December 2003, we will continue to review our available space in our other operating markets.

U.S. Revenues.    We recognized U.S. revenues of $99.7 million for the year ended December 31, 2003 as compared to $77.2 million for the year ended December 31, 2002. U.S. revenues consisted of recurring revenues of $93.6 million and $65.3 million, respectively, for the year ended December 31, 2003 and 2002, a 43% increase. U.S. recurring revenues consist primarily of colocation and interconnection services plus a nominal amount of managed infrastructure services. U.S. recurring revenues for the year ended December 31, 2003 includes $5.1 million of revenues generated from the two U.S. IBX centers acquired from Pihana on December 31, 2002 located in Los Angeles and Honolulu. Excluding revenues from these acquired U.S. IBX centers, the period over period growth in recurring revenues of 60% was primarily the result of an increase in orders from both our existing customers and new customer growth acquired during the year as reflected in the growth in our customer count and utilization rate as discussed above. In addition, consistent with the growth in our customer base, our interconnection revenues have grown as our customers continue to expand their interconnection activity with each other. As of December 31, 2003, U.S. interconnection revenue represented 21% of total U.S. recurring revenue as compared to 9% in the prior year. We expect our U.S. recurring revenues to continue to grow and remain our most significant source of revenue for the foreseeable future.

In addition, U.S. revenues consisted of non-recurring revenues of $6.1 million and $11.9 million, respectively, for the year ended December 31, 2003 and 2002. Non-recurring revenues are primarily related to the recognized portion of deferred installation, professional services, settlement fees associated with certain contract terminations and equipment resales. The period over period decrease in U.S. non-recurring revenues was primarily the result of $2.9 million of equipment resale revenue and $4.9 million in settlement fees from customers to terminate their contract recognized during the year ended December 31, 2002. There were no equipment resale transactions during the year ended December 31, 2003; however, we received $1.2 million of settlement fees during the year ended December 31, 2003, primarily as a result of bankruptcy related payments from both Worldcom and Excite@home. Excluding any settlement fees that we may recognize in the future, we expect our U.S. non-recurring revenues to remain relatively flat or grow moderately in the foreseeable future.

Asia-Pacific Revenues.    As a result of the combination that closed on December 31, 2002, which resulted in the acquisition of four Asia-Pacific IBX centers, we recognized $18.2 million of revenues in Asia-Pacific during the year ended December 31, 2003. Prior to the combination we generated no revenues from outside of

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the United States. Asia-Pacific revenues consisted of recurring revenues of $16.3 million, primarily from colocation and managed infrastructure services, and non-recurring revenues of $1.9 million for the year ended December 31, 2003, which includes settlement fees of $584,000, primarily from one customer that terminated its contract. Asia-Pacific revenues are generated from Singapore, Tokyo, Hong Kong and Sydney with Singapore representing approximately 77% of the regional revenues. Our Asia-Pacific revenues are similar to the revenues that we generate from our U.S. IBX centers; however, our Singapore IBX center has additional managed infrastructure service revenue, such as mail service and managed platform solutions, which we do not currently offer in any other IBX center location. We expect our Asia-Pacific revenues to decrease slightly during the first half of 2004 as we expect some churn on our low-margin bandwidth revenue in Singapore. However, excluding this expected drop in bandwidth revenue, we would otherwise expect our Asia-Pacific revenues to begin to grow over the course of the year.

Cost of Revenues.    Cost of revenues were $128.1 million for the year ended December 31, 2003 versus $104.1 million for the year ended December 31, 2002, a 23% increase. Included in cost of revenues for the year ended December 31, 2003 are the results of the two companies that we acquired on December 31, 2002, i-STT and Pihana, a cumulative total of $24.7 million. The largest cost components of our cost of revenues are depreciation, rental payments related to our leased IBX centers, utility costs including bandwidth, IBX employees’ salaries and benefits, consumable supplies and equipment and security services. A substantial majority of our cost of revenues are fixed in nature and do not vary significantly from period to period. However, there are certain costs, which are considered variable in nature including utilities and consumable supplies that are directly related to growth of services in our existing and new customer base. Given a large component of our cost of revenues are fixed in nature, we anticipate any growth in revenues will have a significant incremental flow through to gross profit in the 70 – 90% range.

U.S. Cost of Revenues.    U.S. cost of revenues were $107.5 million for the year ended December 31, 2003 as compared to $104.1 million for the year ended December 31, 2002, a 3.2% increase. U.S. cost of revenues included $49.9 million and $47.8 million, respectively, of depreciation expense and $59,000 and $266,000, respectively, of stock-based compensation expense for the year ended December 31, 2003 and 2002. During the year ended December 31, 2003, we also recorded $562,000 of accretion expense associated with our asset retirement obligation relating to our various leaseholds, which consist primarily of our IBX center operating leases, as required under FASB No. 143 that was adopted in 2003. Furthermore, U.S. cost of revenues included the costs associated with the $2.9 million of equipment resale revenue that we recorded for the year ended December 31, 2002, which was approximately $2.8 million. We recorded no equipment resale revenue for the year ended December 31, 2003. Included in the U.S. cost of revenues for the year ended December 31, 2003, were the operating costs associated with (i) the Los Angeles and Honolulu IBX centers acquired from Pihana in the combination on December 31, 2002, which totaled $4.1 million ($3.5 million excluding depreciation) and (ii) the Santa Clara IBX center acquired on December 1, 2003, which totaled $597,000. Excluding depreciation, stock-based compensation, accretion expense, the costs of equipment resales and the costs of operating the acquired U.S. IBX centers, U.S. cash cost of revenues decreased period over period to $52.8 million for the year ended December 31, 2003 from $53.1 million for the year ended December 31, 2002, a 1% decrease. This decrease is primarily the result of reduced costs associated with the San Jose ground lease of $3.6 million as a result of the option that we exercised in September 2002 to return approximately one-half of the land commencing in October 2002 (refer to ‘Restructuring Charges” below); however, this decrease is partially offset by an increase in operating costs associated with certain of our IBX centers as a result of (a) higher property taxes for certain IBX centers and (b) increasing utility costs in line with increasing customer installations and revenues attributed to this customer growth. We continue to anticipate that our cost of revenues will increase in the foreseeable future as the occupancy levels in our U.S. IBX centers increase, however as a percent of revenues, we anticipate our cost of revenues will continue to decline.

Asia-Pacific Cost of Revenues.    As a result of the combination that closed on December 31, 2002, which resulted in the acquisition of four Asia-Pacific IBX centers, we incurred an additional $20.6 million in cost of

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revenues from our Asia-Pacific IBX center operations during the year ended December 31, 2003. Included in this number is $4.4 million of depreciation expense. Excluding depreciation expense, our acquired cost of revenues totaled $16.2 million for Asia-Pacific. Our Asia-Pacific cost of revenues consist of the same type of costs that we incur in our U.S. IBX center operations, namely rental payments for our leased IBX centers, utility costs, site employees’ salaries and benefits, consumable supplies and equipment and security services. Our Asia-Pacific costs of revenues are generated in Singapore, Tokyo, Hong Kong and Sydney. There are several managed IT infrastructure service revenue streams unique to our Singapore IBX hub, such as mail service and managed platform solutions, that are more labor intensive than our service offerings in the United States. As a result, our Singapore IBX center has a greater number of employees than any of our other IBX centers, and therefore, a greater labor cost relative to our other IBX centers in the United States or other Asia-Pacific locations. We anticipate that our Asia-Pacific cost of revenues will experience a small decrease during the first half of 2004 as a result of the expected drop in low-margin bandwidth revenue as discussed above. However, excluding this, we would otherwise expect to see moderate growth in Asia-Pacific cost of revenues in the foreseeable future consistent with our anticipated growth in revenues over the course of the year.

Sales and Marketing.    Sales and marketing expenses increased to $19.5 million for the year ended December 31, 2003 from $15.2 million for the year ended December 31, 2002. Included in sales and marketing expenses for the year ended December 31, 2003, are the results of the two companies that we acquired on December 31, 2002, i-STT and Pihana, totaling $6.9 million.

U.S. Sales and Marketing Expenses.    U.S. sales and marketing expenses decreased to $12.5 million for the year ended December 31, 2003 as compared to $15.2 million for the year ended December 31, 2002. Included in U.S. sales and marketing expenses were $294,000 and $952,000, respectively, of stock-based compensation expense for the year ended December 31, 2003 and 2002. During the year ended December 31, 2002, we recorded $2.3 million in bad debt expense. The amount of bad debt expense that we recorded in the prior period, which was significantly larger than what we typically incur, was primarily the result of write-offs or full reserves of aged receivables associated with several customers, including Teleglobe, which had filed for bankruptcy under Chapter 11 of the U.S. Bankruptcy Code last year. Excluding stock-based compensation and bad debt expense, U.S. sales and marketing expenses increased to $12.4 million from $12.0 million, respectively, for the year ended December 31, 2003 and 2002, a 3% increase. Sales and marketing expenses consist primarily of compensation and related costs for sales and marketing personnel, sales commissions, marketing programs, public relations, promotional materials and travel. Excluding stock-based compensation and bad debt expense, the nominal increase in sales and marketing expenses year over year is primarily related to the incremental sales and marketing efforts associated with the two U.S. IBX centers acquired in the combination as of December 31, 2002 in Los Angeles and Honolulu, as well as an overall increase in sales compensation due to increased revenues. We expect to see a nominal increase in sales and marketing spending in the future, although as a percent of revenues, we anticipate a decline in sales and marketing spending.

Asia-Pacific Sales and Marketing Expenses.    As a result of the combination that closed on December 31, 2002, we incurred an additional $6.9 million of sales and marketing expenses, comprised of $4.8 million in cash sales and marketing expenses from our Asia-Pacific operations during the year ended December 31, 2003, and $2.1 million of amortization expense. Our Asia-Pacific sales and marketing expenses consist of the same type of costs that we incur in our U.S. operations, namely compensation and related costs for sales and marketing personnel, sales commissions, marketing programs, public relations, promotional materials and travel. Our Asia-Pacific sales and marketing expenses are generated in Singapore, Tokyo, Hong Kong and Sydney. We expect that our Asia-Pacific sales and marketing expenses will remain relatively flat in the foreseeable future. As a result of the combination that closed on December 31, 2002, we acquired several intangible assets that we amortize, namely the use of a trade-name and certain customer contracts in Singapore valued at approximately $300,000 and $3.6 million, respectively. The trade-name intangible asset was being amortized over one year ending December 31, 2003 and the customer contract intangible asset is being amortized over two years, ending December 31, 2004. As a result, we incurred a total of $2.1 million of amortization expense during the year ended December 31, 2003.

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General and Administrative.    General and administrative expenses increased to $34.3 million for the year ended December 31, 2003 from $30.7 million for the year ended December 31, 2002. Included in general and administrative expenses for the year ended December 31, 2003, are the results of the two companies that we acquired on December 31, 2002, i-STT and Pihana, totaling $7.5 million.

U.S. General and Administrative Expenses.    U.S. general and administrative expenses decreased to $28.3 million for the year ended December 31, 2003 as compared to $30.7 million for the year ended December 31, 2002. Included in U.S. general and administrative expenses were $5.3 million and $6.2 million, respectively, of depreciation expense and $2.6 million and $5.7 million, respectively, of stock-based compensation expense for the year ended December 31, 2003 and 2002. In addition, U.S. general and administrative expenses for the year ended December 31, 2003, included $1.5 million of costs associated with a corporate headquarter office acquired from Pihana on December 31, 2002 located in Honolulu. This office was closed as of June 30, 2003. Excluding depreciation, stock-based compensation expense and the costs of the acquired Honolulu office, U.S. general and administrative expenses remained relatively flat at $18.9 million for the year ended December 31, 2003, as compared to $18.8 million for the year ended December 31, 2002. General and administrative expenses, excluding depreciation and stock-based compensation, consist primarily of salaries and related expenses, accounting, legal and administrative expenses, professional service fees and other general corporate expenses such as our corporate headquarter office lease. We expect to see a nominal increase in general and administrative spending in the future, although as a percent of revenues, we anticipate a decline in general and administrative spending.

Asia-Pacific General and Administrative Expenses.    As a result of the combination that closed on December 31, 2002, we incurred an additional $6.0 million in general and administrative expenses from our newly-acquired Asia-Pacific operations. Our Asia-Pacific general and administrative expenses, which included $497,000 of depreciation expense, consist of the same type of costs that we incur in our U.S. operations, namely salaries and related expenses, accounting, legal and administrative expenses, professional service fees and other general corporate expenses. Our Asia-Pacific general and administrative expenses are generated in Singapore, Tokyo, Hong Kong and Sydney. Our Asia-Pacific headquarter office is located in Singapore. Most of the corporate overhead support functions that we have in the U.S. also reside in our Singapore office in order to support our Asia-Pacific operations. In addition, we have separate corporate office locations in Tokyo and Hong Kong. We expect that our Asia-Pacific general and administrative expenses will remain relatively flat or experience only moderate growth for the foreseeable future.

Restructuring Charges.    We did not incur any restructuring charges during the year ended December 31, 2003. During the year ended December 31, 2002, we recorded restructuring charges of $28.9 million. The restructuring charges consisted of (a) a $5.0 million option fee paid in May 2002 related to the amendment of our approximately 80 acre ground lease in San Jose, California from which we subsequently elected to exercise the option to permanently exclude 40 acres commencing October 1, 2002; (b) a partial write-off of two letters of credit totaling $19.0 million associated with the exercise in September 2002 of our option to permanently terminate approximately one-half of our lease obligations under the San Jose ground lease (c) a write-off of property and equipment of $2.6 million, primarily leasehold improvements and some equipment, located in two unnecessary U.S. IBX expansion and headquarter office space operating leaseholds we had decided to exit and that do not currently provide any ongoing benefit and (d) write-offs or accruals of certain U.S. or European exit costs and severance charges.

Interest Income.    Interest income decreased to $296,000 from $998,000 for the year ended December 31, 2003 and 2002, respectively. Interest income decreased due to lower average cash, cash equivalent and short-term investment balances held in interest-bearing accounts and lower interest rates received on those invested balances.

Interest Expense.    Interest expense decreased to $20.5 million from $35.1 million for the year ended December 31, 2003 and 2002, respectively. The significant decrease in interest expense was primarily

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attributable to the retirement of $169.5 million of our 13% senior notes during 2002. In addition, we reduced the interest expense attributed to our credit facility as a result of a reduction in the principal balance outstanding and a reduction in the interest rates. However, these interest expense savings were partially offset by the approximately $7.3 million of non-cash interest expense associated with the $30.0 million 14% convertible secured note issued on December 31, 2002 as a result of the financing, and the $10.0 million 10% convertible secured notes issued on June 5, 2003 as a result of the Crosslink financing. We recorded a substantial debt discount equal to the $10.0 million of principal in connection with the Crosslink financing, primarily as a result of the beneficial conversion feature associated with these convertible secured notes, which is being amortized to interest expense over the term of the Crosslink financing. This is a primary contributor to our increased non-cash interest expense from the prior period.

Gain on Debt Extinguishment.    During the year ended December 31, 2002, we retired approximately $169.5 million of senior notes in exchange for approximately 2.4 million shares of common stock and $17.7 million of cash. As a result, we recognized a $114.2 million net gain on debt extinguishment during 2002, after deducting transaction costs, interest waived and allocation of unamortized debt issuance costs and debt discount. Although we made payments on our various debt facilities during 2003, we extinguished no senior notes or other debt during the year ended December 31, 2003.

Income Taxes.    A full valuation allowance is recorded against our deferred tax assets as management cannot conclude, based on available objective evidence, when it is more likely than not that the gross value of its deferred tax assets will be realized.

Liquidity and Capital Resources

Since inception, we have financed our operations and capital requirements primarily through the issuance of various debt and equity instruments, for aggregate gross proceeds of $1.1 billion. As of December 31, 2004, our total indebtedness was comprised of non-convertible debt totaling $35.2 million from our Washington D.C. metro area IBX capital lease and convertible debt totaling $124.7 million from our convertible secured notes and convertible subordinated debentures as outlined below.

During February 2004, we sold $86.3 million in aggregate principal of 2.5% convertible subordinated debentures due 2024 to qualified institutional buyers. We used the net proceeds from this offering primarily to repay all amounts outstanding under our previously outstanding non-convertible debt as outlined below. We refer to this transaction as the “convertible debenture offering.” During March 2004, holders of our 10% $10.0 million convertible secured notes issued in connection with the Crosslink financing, converted the $10.0 million of principal into 2.5 million shares of our common stock. We refer to this transaction as the “Crosslink conversion.” We recorded a significant loss on debt extinguishment and conversion totaling $16.2 million during the quarter ended March 31, 2004, primarily related to the non-cash write-off of debt issuance costs and discounts in connection with the various debt repayments, redemptions and conversions of the underlying debt facilities extinguished or converted, as well as the cash premium that we paid on our 13% senior notes.

As of December 31, 2004, our principal source of liquidity was our $108.1 million of cash, cash equivalents and short-term and long-term investments. We believe that this cash, coupled with our anticipated cash flows generated from operations, will be sufficient to meet our capital expenditure, debt service and corporate overhead requirements to meet our currently identified business objectives. In addition, in December 2004, as a result of the Silicon Valley Bank credit line, as further described below, we have $21.8 million of additional liquidity available to us in the event we need additional cash to pursue attractive strategic opportunities that may become available in the future.

While we had generated negative operating cashflow in each annual period since inception through 2003, commencing the quarter ended September 30, 2003 we started to generate positive operating cash flow. During that quarter, our revenues grew to a level sufficient to meet our operating cash requirements related to our predominantly fixed cost structure related to our existing IBX centers. We considered that quarter to be the

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inflection point in our business model whereby our revenues were sufficient on an ongoing basis to meet all our operating costs and working capital requirements. As a result of reaching this point in our operating history, we have generated cash from our operations during 2004 and expect this generation of operating cash flows to continue in 2005 and beyond and to be in an amount sufficient to meet our cash requirements to fund our capital expenditures, debt service and corporate overhead requirements (excluding the purchase, sale and maturities of our short-term and long-term investments). However, given our limited operating history, we may not achieve our desired levels of profitability in the future. See “Other Factors Affecting Operating Results.”

Uses of Cash

Net cash provided by our operating activities was $36.9 million for the year ended December 31, 2004. Net cash used in our operating activities was $17.3 million and $27.5 million for the years ended December 31, 2003 and 2002, respectively. As described above, we have now reached and are moving beyond the inflection point in our business model whereby our revenues are sufficient to cover our operating expenses and we are now generating cash from our operations. In prior periods, we used cash primarily to fund our net loss, including cash interest payments on our senior notes and credit facility, although the majority of the operating cash flows used during the years ended December 31, 2003 and 2002 related to the liquidation of accrued obligations, such as accrued restructuring activities, including merger and financing costs during 2003. In addition, we continue to experience strong collections of our accounts receivables. As described above, we expect that we will continue to generate cash from our operating activities throughout 2005 and beyond.

Net cash used in investing activities was $56.9 million, $49.2 million and $7.5 million for the years ended December 31, 2004, 2003 and 2002, respectively. Net cash used in investing activities during the year ended December 31, 2004 was primarily for the net purchase of short-term and long-term investments, as well as to fund capital expenditures to bring our recently acquired IBX centers in the Silicon Valley and Washington DC metro areas to Equinix standards and to support our growing customer base. Net cash used in investing activities during the year ended December 31, 2003 was primarily the result of the purchase of short-term investments and some nominal amount of capital expenditures, partially offset by the release of restricted cash to fund a cash interest payment on our senior notes in January 2003. Net cash used in investing activities during the year ended December 31, 2002 was primarily attributable to the liquidation of accrued construction costs for the New York metropolitan area IBX hub, which opened during the first quarter of 2002, partially offset by the sale of short-term investments. For 2005, we anticipate that our cash used in investing activities, excluding the purchases, sales and maturities of short-term and long-term investments, will primarily fund our capital expenditures.

Net cash generated by financing activities was $19.2 million, $52.3 million and $16.9 million for the years ended December 31, 2004, 2003 and 2002, respectively. Net cash generated by financing activities for the year ended December 31, 2004, was primarily the result of the $86.3 million in gross proceeds from our convertible debenture offering, offset by $70.8 million in payments on our credit facility, senior notes and other debt facilities and capital lease obligations, as well as debt extinguishment costs associated with paying down these facilities and $7.3 million in proceeds from our various employee stock plans. Net cash provided by financing activities during the year ended December 31, 2003 was primarily the result of the $104.4 million in net proceeds of our follow-on equity offering and $10.0 million in proceeds from the Crosslink financing, partially offset by $57.2 million in payments on our credit facility and $6.1 million in payments on our various other debt facilities and capital lease obligations. Net cash generated by financing activities during the year ended December 31, 2002 was primarily attributable to the cash acquired in the acquisitions of i-STT and Pihana and proceeds from our $30.0 million convertible secured notes, offset by payments of $17.7 million used to retire approximately $169.5 million of our senior notes and the costs associated with the exchange of the senior notes and repayments under our credit facility of $13.5 million.

Debt Obligations—Non-Convertible Debt

As of December 31, 2004, our only indebtedness from non-convertible debt related to a capital lease associated with our new IBX center in the Washington D.C. metro area totaling $35.2 million. In addition, in

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December 2004, as a result of the Silicon Valley Bank credit line, as further described below, we have $21.8 million of additional liquidity available to us in the event we need additional cash to pursue attractive strategic opportunities that may become available in the future. Prior to this, our non-convertible debt was comprised of our senior notes, credit facility, and other debt facilities and capital lease obligations as follows:

Senior Notes.    In December 1999, we issued $200.0 million aggregate principal amount of 13% senior notes due 2007. During 2002, we retired $169.5 million of the senior notes in exchange for approximately 2.4 million shares of common stock and approximately $21.3 million of cash. As of December 31, 2003, a total of $30.5 million of senior note principal remained outstanding, which was presented, net of unamortized discount, on our balance sheet at $29.2 million. In March 2004, with the net proceeds from our convertible debenture offering, we exercised our right to redeem all of our senior notes. The redemption price for the senior notes was equal to 106.5% of their principal amount, plus accrued and unpaid interest, to the redemption date. As a result, we recognized a loss on debt extinguishment on this transaction of $3.8 million, comprised of the 6.5% premium that we paid to redeem the senior notes, the write-off of debt issuance costs and debt discount and other transaction fees.

Credit Facility.    In December 2000, we entered into the credit facility with a syndicate of lenders under which, subject to our compliance with a number of financial ratios and covenants, we were permitted to borrow up to $150.0 million, which was fully drawn down during 2001. This facility was amended at various times during 2001, 2002 and 2003. As of December 31, 2003, a total of $34.3 million of principal remained outstanding under the credit facility. In February 2004, with the net proceeds from our convertible debenture offering, we repaid all amounts outstanding under our credit facility and terminated the credit facility. As a result, we recognized a loss on debt extinguishment on this transaction of $4.4 million, comprised primarily of the write-off of debt issuance costs as well as some other transaction fees.

Other Debt Facilities and Capital Lease Obligations.     In August 1999, we entered into a loan agreement with Venture Lending and Leasing in the amount of $10.0 million and fully drew down on this amount. This loan agreement bore interest at 8.5% and was repayable over 42 months in equal monthly payments with a final interest payment equal to 15% of the advance amounts due on maturity. As of December 31, 2003, principal of $847,000 remained outstanding. In March 2004, with the net proceeds from our convertible debenture offering, we paid off this other debt facility in full. As a result, we recognized a loss on debt extinguishment on this transaction of $0.2 million, comprised of the write-off of debt issuance costs and discount as well as some other transaction fees.

In June 2001, we entered into a loan agreement with Heller Financial Leasing in the amount of $5.0 million and fully drew down on this amount. This loan agreement bore interest at 13.0% and was repayable over 36 months. As of December 31, 2003, principal of $2.5 million remained outstanding. In February 2004, with the net proceeds from our convertible debenture offering, we paid off this other debt facility in full. As a result, we recognized a loss on debt extinguishment on this transaction of $0.2 million, comprised of the write-off of debt issuance costs and discount as well as some other transaction fees.

In December 2002, in conjunction with our merger with Pihana, we acquired multiple capital leases with Orix. The original amount financed was approximately $3.5 million. These capital lease arrangements bore interest at an average rate of 6.4% per annum and were repayable over 30 months. As of December 31, 2003, principal of $201,000 remained outstanding. These capital leases were fully paid down by March 31, 2004.

Washington D.C. Metro Area IBX Capital Lease.    In April 2004, we entered into a long-term lease for a 95,000 square foot data center in the Washington, D.C. metro area. The center is adjacent to the Company’s existing Washington D.C. metro area IBX. This lease, which includes the leasing of all of the IBX plant and machinery equipment located in the building, is a capital lease. We took possession of this property during the fourth quarter of 2004, and as a result, recorded property and equipment assets, as well as a capital lease obligation, totaling $35.3 million. Payments under this lease, which commenced in November 2004, will be

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made monthly through 2019 at an effective interest rate of 8.50% per annum. As of December 31, 2004, principal of $35.2 remained outstanding.

Silicon Valley Bank Credit Line.    In December 2004, we entered into a $25.0 million line of credit arrangement with Silicon Valley Bank that matures in December 2006. This facility is a $25.0 million revolving line of credit which, at our election, up to $10.0 million may be converted into a 24-month term loan, repayable in eight quarterly installments. We refer to this transaction as the “Silicon Valley Bank credit line.” Borrowings under the Silicon Valley Bank credit line bear interest at floating interest rates, plus applicable margins, based either on the prime rate or LIBOR. As of December 31, 2004, the Silicon Valley Bank credit line had an interest rate of 4.40% per annum; however, through the date of filing of this report on Form 10-K, we have not drawn down any amounts from this line of credit. The Silicon Valley Bank credit line also features sublimits, which allows us to issue letters of credit, enter into foreign exchange forward contracts and make advances for cash management services. Our utilization under any of these sublimits would have the effect of reducing the amount available for borrowing under the Silicon Valley Bank credit line during the period that such sublimits remain utilized and outstanding. As of December 31, 2004, we had utilized $3.2 million under the letters of credit sublimit with the issuance of three letters of credit and, as a result, reduced the amount of borrowings available to us from $25.0 million to $21.8 million. The Silicon Valley Bank credit line is secured by substantially all of our domestic assets and contains numerous covenants, including financial covenants, such as maintaining minimum cash balance levels and meeting minimum quarterly revenue targets, which we are in full compliance of. The Silicon Valley Bank credit line provides us with additional liquidity and financing flexibility in the future.

Debt Obligations—Convertible Debt

Convertible Secured Notes.    In December 2002, in conjunction with the combination, STT Communications made a $30.0 million strategic investment in the company in the form of a 14% convertible secured note due November 2007. The interest on the convertible secured note is payable in kind in the form of additional convertible secured notes, which we refer to as “PIK notes.” During 2003 and through December 31, 2004, we have issued $8.5 million in PIK notes. The convertible secured note and PIK notes issued to STT Communications are convertible into our preferred and common stock at a price of $9.18 per underlying share, and are convertible anytime at the option of STT Communications. Upon certain conditions, including if the closing price of our common stock exceeds $32.12 per share for thirty consecutive trading days, we had the option of converting the convertible secured notes beginning in 2005. In January 2005, we exercised this right and converted 95% of the outstanding convertible secured notes and accrued and unpaid interest, held by STT Communications, into 4.1 million shares of our preferred stock, which was subsequently converted into 4.1 million shares of our common stock in February 2005. The remaining 5% of the convertible secured notes, totaling $1.9 million, that remain outstanding will be eligible for conversion by Equinix in early 2006 into approximately 250,000 shares (including anticipated interest expense to be incurred during 2005 and early 2006), provided that the closing price of our common stock exceeds $32.12 per share for thirty consecutive trading days. We refer to this transaction as the “STT convertible secured notes conversion.”

In June 2003, entities affiliated with Crosslink Capital made a $10.0 million strategic investment in the company in the form of 10% convertible secured notes due November 2007, which contained a beneficial conversion feature. The interest on the convertible secured notes was payable in kind in the form of additional convertible secured notes commencing on the second anniversary of the closing of this transaction. In March 2004, the holders of these notes converted them into 2.5 million shares of our common stock. As a result, we recognized a loss on debt conversion on this transaction of $7.6 million, comprised primarily of the write-off of debt discount due to the beneficial conversion feature.

As of December 31, 2004, a total of $38.5 million of convertible secured notes were outstanding, which is presented, net of unamortized discount, on our balance sheet at $35.8 million. In addition, as of December 31, 2004, we had debt issuance costs related to our convertible secured notes of $336,000 remaining to be amortized. All interest expense associated with our convertible secured notes, including the amortization of the unamortized discount of $2.7 million and our unamortized debt issuance costs, represent non-cash interest expense in our

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statements of operation and cash flow as no cash is expended for this interest. In January 2005, as a result of the STT convertible secured note conversion, 95% of the outstanding convertible secured notes, plus accrued interest and unamortized discount and debt issuance costs, was converted into stockholders’ equity.

Convertible Subordinated Debentures.    During February 2004, we sold $86.3 million in aggregate principal of 2.5% convertible subordinated debentures due 2024 to qualified institutional buyers. We used the net proceeds from this offering primarily to repay all amounts outstanding under our credit facility and two of our other debt facilities, as well as fully redeemed our remaining 13% senior notes. The interest on the convertible subordinated debentures is payable semi-annually every February and August, which commenced August 2004. Unlike our convertible secured notes, the interest on our convertible subordinated debentures is payable in cash. Our convertible subordinated debentures are convertible into 2.2 million shares of our common stock.

Holders of the convertible subordinated debentures may require us to purchase all or a portion of their debentures on February 15, 2009, February 15, 2014 and February 15, 2019, in each case at a price equal to 100% of the principal amount of the debentures plus any accrued and unpaid interest. In addition, holders of the convertible subordinated debentures may convert their debentures into shares of our common stock upon certain defined circumstances, including during any calendar quarter if the closing price of our common stock is greater than or equal to 120% of $39.50 per share of our common stock, or approximately $47.40 per share, for twenty consecutive trading days during the period of thirty consecutive trading days ending on the last day of the previous calendar quarter. We may redeem all or a portion of the debentures at any time after February 15, 2009 at a redemption price equal to 100% of the principal amount of the debentures plus any accrued and unpaid interest.

Debt Maturities, Lease and Other Contractual Commitments

We lease our IBX centers and certain equipment under non-cancelable lease agreements expiring through 2020. The following represents our debt maturities, lease and other commitments as of December 31, 2004 (in thousands):

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In December 2004, we entered into a long-term lease for a 103,000 square foot data center in the Silicon Valley area. This data center is close to our existing IBX centers in the Silicon Valley, and expands the global Equinix footprint to approximately 1.4 million square feet. This new lease will add an additional $34.2 million in cumulative monthly lease payments through 2020, commencing February 2005. We will take possession of this property during the first quarter of 2005. We currently intend to place customers in this data center in 2005. Concurrent with the signing of this lease, we also agreed to purchase the assets located in this data center and entered into an agreement to interconnect all three of our Silicon Valley IBX centers to each other through redundant dark fiber links. This will allow our customers to have access to all the networks and customers in each of the three Silicon Valley IBXs. While we have not yet concluded that this lease is an operating lease, for purposes of reflecting our full contractual commitments in the table presented above, this lease is presented within the future operating lease costs presented above.

As of December 31, 2004, as a result of the Silicon Valley IBX acquisition described above and the associated agreements, we are obligated to pay $924,000 for the assets located in the data center, which we expect to pay in March 2005 when the Company takes possession of this property. In addition, as of December 31, 2004, we are also obligated to pay $750,000 upon completion of the installation of the redundant dark fiber links currently being installed, which needs to be paid no later than May 1, 2005. These obligations are reflected in the table above under other contractual commitments.

In connection with three of our IBX operating leases, we have entered into three irrevocable letters of credit with Silicon Valley Bank. These letters of credit were provided in lieu of cash deposits under the letters of credit sublimit provision in connection with the Silicon Valley Bank credit line. The letters of credit total $3.2 million, are collateralized by the Silicon Valley Bank credit line and automatically renew in successive one-year periods until the final lease expiration dates. If the landlords for any of these three IBX operating leases decide to draw down on these letters of credit, we will be required to fund these letters of credit. This contingent commitment is not reflected in the table above.

In December 2004, in light of the availability of fully built-out data centers in select markets at costs significantly below those costs we would incur in building out new space, we made the decision to exit leases for excess space adjacent to one of our New York metro area IBXs, as well as space on the floor above our original Los Angeles IBX. As a result of our decision to exit these spaces, we recorded a restructuring charge totaling $17.7 million, which represents the present value of our estimated future cash payments, net of any estimated subrental income and expense, through the remainder of these lease terms, as well as the write-off of all remaining property and equipment attributed to the partial build-out of the excess space on the floor above our Los Angeles IBX. We have already sublet the excess space in the New York metro area and are currently evaluating opportunities to either sublet the excess space in Los Angeles or terminate this lease altogether. As of December 31, 2004, we had a total restructuring charge accrual of $14.8 million associated with these two leases for excess space on our balance sheet. These obligations are reflected in the table above under operating leases covered under accrued restructuring charges.

As a result of our recent IBX expansions in the Silicon Valley and Washington D.C. metro areas, we anticipate that we will incur capital expenditures in excess of what we would otherwise spend had we not acquired these new IBXs. Although we are not contractually obligated to do so, we expect to incur additional capital expenditures in these two markets during 2005 of approximately $10.0 to $12.0 million in order to bring these new IBXs up to Equinix standards. This non-contractual capital expenditure spending is not reflected in the table above.

Strategically, we will continue to look at attractive opportunities to grow our market share and selectively improve our footprint and service streams, such as our recent acquisition of the Sprint property in Santa Clara and our recently announced expansions in the Washington, D.C. and Silicon Valley metro area markets. However, we will continue to be very selective with any similar opportunity. As was the case with these recent expansions in the Silicon Valley and Washington, D.C. area markets, the criteria will be quality of the design,

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access to networks, capacity availability in current market location, amount of incremental investment required by us in the targeted property, lead-time to breakeven and in-place customers. Like these recent expansions, the right combination of these factors may be quite attractive for us. Dependent on the particular deal, these acquisitions may require upfront cash payments and additional capital expenditures in order to bring these centers up to Equinix standards.

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RISK FACTORS

In addition to the other information in this report, the following risk factors should be considered carefully in evaluating our business and us:

Risks Related to Our Business

We have incurred substantial losses in the past and may continue to incur additional losses in the future.

Although Equinix has generated cash from operations since the quarter ended September 30, 2003, for the years ended December 31, 2004 and 2003, the company incurred net losses of $68.6 million and $84.2 million, respectively. In light of new rules regarding the expensing of stock-based compensation, we do not expect to become net income positive for at least one to two more years. In addition, if we acquire or build-out additional IBX centers, we will have additional depreciation and amortization expenses that will negatively impact our ability to achieve and sustain positive net income. There can be no guarantee that we will become profitable and the company may continue to incur additional losses. Even if we achieve profitability, given the competitive and evolving nature of the industry in which we operate, we may not be able to sustain or increase profitability on a quarterly or annual basis.

We expect our operating results to fluctuate.

We have experienced fluctuations in our results of operations on a quarterly and annual basis. The fluctuation in our operating results may cause the market price of our common stock to decline. We expect to experience significant fluctuations in our operating results in the foreseeable future due to a variety of factors, including:

Any of the foregoing factors, or other factors discussed elsewhere in this report, could have a material adverse effect on our business, results of operations, and financial condition. Although the company has experienced growth in revenues in recent quarters, this growth rate is not necessarily indicative of future operating results. It is possible that the company may never generate net income on a quarterly or annual basis. In addition, a relatively large portion of our expenses are fixed in the short-term, particularly with respect to lease and personnel expenses, depreciation and amortization, and interest expenses. Therefore, our results of operations are particularly sensitive to fluctuations in revenues. As such, comparisons to prior reporting periods should not be relied upon as indications of the company’s future performance. In addition, our operating results in one or more future quarters may fail to meet the expectations of securities analysts or investors. If this occurs, we could experience an immediate and significant decline in the trading price of our stock.

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If the market price of our stock continues to be highly volatile, the value of an investment in our common stock may decline.

Within the last 12 months, our common stock has traded between $26.50 and $46.39 per share. The market price of the shares of our common stock has been and may continue to be highly volatile. In January 2005, 95% of STT Communications’ outstanding convertible secured notes and associated interest were converted into shares of our non-voting Series A-1 preferred stock. In February 2005, STT Communications elected to convert all of the shares of Series A-1 preferred stock into 4.1 million shares of our common stock. Sales of a substantial number of shares of our common stock within a narrow period of time could cause our stock price to fall. Announcements may also have a significant impact on the market price of our common stock. These announcements may include:

The stock market has from time to time experienced extreme price and volume fluctuations, which have particularly affected the market prices for emerging telecommunications companies, and which have often been unrelated to their operating performance. These broad market fluctuations may adversely affect the market price of our common stock. In addition, sales of substantial amounts of our common stock in the public market could lower the market price of our common stock.

Our inability to use our tax net operating losses will cause us to pay taxes at an earlier date and in greater amounts which may harm our operating results.

We believe that our ability to use our pre-2003 tax net operating losses, or NOLs, in any taxable year is subject to limitation under Section 382 of the United States Internal Revenue Code of 1986, as amended, (the “Code”) as a result of the significant change in the ownership of our stock that resulted from the combination. We expect that a significant portion of our NOLs accrued prior to December 31, 2002 will expire unused as a result of this limitation. In addition to the limitations on NOL carryforward utilization described above, we believe that Section 382 of the Code will also significantly limit our ability to use the depreciation and amortization on our assets, as well as certain losses on the sale of our assets, to the extent that such depreciation, amortization and losses reflect unrealized depreciation that was inherent in such assets as of the date of the combination. These limitations will cause us to pay taxes at an earlier date and in greater amounts than would occur absent such limitations.

While we believe that we currently have adequate internal control procedures in place, we are still exposed to potential risks from recent legislation requiring companies to evaluate controls under Section 404 of the Sarbanes-Oxley Act of 2002.

In the course of our ongoing evaluation of our internal controls over financing reporting, we have identified areas requiring improvement and are in the process of designing enhanced processes and controls to address the issues identified during our evaluation. We cannot be certain that our efforts will be effective or sufficient for us, or our auditors, to issue unqualified reports in the future.

It may be difficult to design and implement effective financial controls for combined operations and differences in existing controls of any acquired businesses may result in weaknesses that require remediation when the financial controls and reporting are combined.

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Our ability to manage our operations and growth will require us to improve our operational, financial and management controls, as well as our internal reporting systems and controls. We may not be able to implement improvements to our internal reporting systems and controls in an efficient and timely manner and may discover deficiencies in existing systems and controls.

If we cannot effectively manage international operations, our revenues may not increase and our business and results of operations would be harmed.

In 2002, our sales outside North America represented less than 1% of our revenues. For the year ended December 31, 2003, the combined company recognized 15% of its revenues outside North America. For the year ended December 31, 2004, the combined company recognized 13% of its revenues outside North America. We anticipate that, for the foreseeable future, approximately 15% of the combined company’s revenues will be derived from sources outside North America.

To date, the neutrality of the Equinix IBX centers and the variety of networks available to our customers has often been a competitive advantage for us. In certain of our acquired IBX centers, in Singapore in particular, the limited number of carriers available diminishes that advantage. As a result, we may need to adapt our key revenue-generating services and pricing to be competitive in that market.

We may experience gains and losses resulting from fluctuations in foreign currency exchange rates. To date, the majority of Equinix’s revenues and costs have been denominated in U.S. dollars; however, the majority of revenues and costs in our international operations are denominated in Singapore dollars, Japanese yen and Australia and Hong Kong dollars. Although the combined company may undertake foreign exchange hedging transactions to reduce foreign currency transaction exposure, it does not currently intend to eliminate all foreign currency transaction exposure. Where our prices are denominated in U.S. dollars, our sales could be adversely affected by declines in foreign currencies relative to the U.S. dollar, thereby making our products more expensive in local currencies. Our international operations are generally subject to a number of additional risks, including:

We may make acquisitions, which pose integration and other risks that could harm our business.

We have acquired several new IBX centers recently, and we may seek to acquire additional IBX centers, complementary businesses, products, services and technologies. As a result of these acquisitions, we may be required to incur additional debt and expenditures and issue additional shares of our stock to pay for the acquired business, product, service or technology, which will dilute our existing stockholders’ ownership interest and may delay, or prevent, our profitability. These acquisitions may also expose us to risks such as:

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We cannot assure you that we would successfully overcome these risks or any other problems encountered with these acquisitions.

STT Communications holds a substantial portion of our stock and has significant influence over matters requiring stockholder consent.

As of December 31, 2004, STT Communications owned approximately 23% of our outstanding voting stock. In addition, STT Communications is not prohibited from buying shares of our stock in public or private transactions. Because of the diffuse ownership of our stock, STT Communications has significant influence over matters requiring our stockholder approval. In January 2005, 95% of STT Communications’ outstanding convertible secured notes and associated interest were converted into shares of our non-voting Series A-1 preferred stock. In February 2005, STT Communications elected to convert all of the shares of Series A-1 preferred stock into 4.1 million shares of our common stock, which caused STT Communications to own approximately 36% of our outstanding voting stock. As a result, STT Communications is able to exercise significant control over all matters requiring stockholder approval, including the election of directors and approval of significant corporate transactions, which could prevent or delay a third party from acquiring or merging with us. STT also has a right of first offer, which entitles them to participate in an offering of our equity securities, or securities convertible into our equity securities, to maintain their ownership percentage prior to such offering.

Our business could be harmed by prolonged electrical power outages or shortages, increased costs of energy or general availability of electrical resources.

Our IBX centers are susceptible to regional costs of power, electrical power shortages, planned or unplanned power outages caused by these shortages such as those that occurred in California during 2001 and in the Northeast in 2003 or natural disasters such as the hurricanes in the Southeast in 2004, and limitations, especially internationally, of adequate power resources. The overall power shortage in California has increased the cost of energy, which we may not be able to pass on to our customers. We attempt to limit exposure to system downtime by using backup generators and power supplies. Power outages, which last beyond our backup and alternative power arrangements, could harm our customers and our business.

In addition, power and cooling requirements are growing on a per server basis. As a result, customers are consuming an increasing amount of power per cabinet. This, combined with the fact that we generally do not control the amount of draw our customers take from installed circuits, means that we could face power limitations in our centers. This could have a negative impact on the available utilization capacity of a given center, which could have a negative impact on our financial performance, operating results and cash flows.

Increases in property taxes could adversely affect our business, financial condition and results of operations.

Our IBX centers are subject to state and local real property taxes. The state and local real property taxes on our IBX centers may increase as property tax rates change and as the value of the properties are assessed or

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reassessed by taxing authorities. Many state and local governments are facing budget deficits, which may cause them to increase assessments or taxes. If property taxes increase, our business, financial condition and operating results could be adversely affected.

We may be forced to take steps, and may be prevented from pursuing certain business opportunities, to ensure compliance with certain tax-related covenants agreed to by us in the combination agreement.

We agreed to a covenant in the combination agreement (which we refer to as the FIRPTA covenant) that we would use all commercially reasonable efforts to ensure that at all times from and after the closing of the combination until such time as neither STT Communications nor its affiliates hold our capital stock or debt securities (or the capital stock received upon conversion of the debt securities) received by STT Communications in connection with the consummation of the transactions contemplated in the combination agreement, none of our capital stock issued to STT Communications would constitute “United States real property interests” within the meaning of Section 897(c) of the Code. Under Section 897(c) of the Code, our capital stock issued to STT Communications would generally constitute “United States real property interests” at such point in time that the fair market value of the “United States real property interests” owned by us equals or exceeds 50% of the sum of the aggregate fair market values of (a) our “United States real property interests,” (b) our interests in real property located outside the U.S., and (c) any other assets held by us which are used or held for use in our trade or business. Currently, the fair market value of our “United States real property interests” is significantly below the 50% threshold. However, in order to assure compliance with the FIRPTA covenant, we may be limited with respect to the business opportunities we may pursue, particularly if the business opportunities would increase the amounts of “United States real property interests” owned by us or decrease the amount of other assets owned by us. In addition, we may take proactive steps to avoid our capital stock being deemed “United States real property interest”, including, but not limited to, (a) a sale-leaseback transaction with respect to some or all of our real property interests, or (b) the formation of a holding company organized under the laws of the Republic of Singapore which would issue shares of its capital stock in exchange for all of our outstanding stock (this reorganization would require the submission of that transaction to our stockholders for their approval and the consummation of that exchange). We will take these actions only if such actions are commercially reasonable for Equinix and our stockholders.

Our non-U.S. customers include numerous related parties of i-STT.

In the past, a substantial portion of i-STT’s financing, as well as its revenues, has been derived from its affiliates, including STT Communications. We continue to have contractual and other business relationships and may engage in material transactions with affiliates of STT Communications. Circumstances may arise in which the interests of STT Communications’ affiliates may conflict with the interests of our other stockholders. In addition, entities affiliated with STT Communications make investments in various companies; they have invested in the past, and may invest in the future, in entities that compete with us. In the context of negotiating commercial arrangements with affiliates, conflicts of interest have arisen in the past and may arise, in this or other contexts, in the future. We cannot assure you that any conflicts of interest will be resolved in our favor.

A significant number of shares of our capital stock have been issued during 2002, 2003 and 2004 and may be sold in the market in the near future. This could cause the market price of our common stock to drop significantly, even if our business is doing well.

We issued a large number of shares of our capital stock to the former Pihana stockholders, STT Communications, and holders of our senior notes in connection with the combination, financing and senior note exchange, to Crosslink Capital, Inc. and its affiliates (collectively, “Crosslink”) in connection with Crosslink’s purchase of our Series A-2 Convertible Secured Notes, and to the public and STT Communications in connection with our follow-on equity offering in late 2003. The shares of common stock issued in the senior note exchange are currently freely tradeable. The shares of common stock issued in connection with the combination have been

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registered for resale as of June 30, 2003, the shares of common stock issued upon exercise of the warrants issued in connection with the Crosslink financing have been registered for resale as of September 22, 2003 and the shares of common stock issued upon conversion of the convertible secured notes issued in the Crosslink financing have been registered for resale as of July 30, 2004. The shares sold to the public and STT Communications in connection with our follow-on equity offering in November 2003 are freely tradeable by the public, subject, in the case of STT Communications, to compliance with Rule 144 resale restrictions applicable to affiliates. In February 2004, we issued $86,250,000 of 2.5% Convertible Subordinated Debentures due 2024. These debentures are convertible into 2,183,548 shares of our common stock. Holders of these debentures may convert their debentures into shares of our common stock during any calendar quarter if the sale price of our common stock is greater than or equal to 120% of the conversion price per share of our common stock for 20 out of any 30 consecutive trading days or if the trading price of our debentures falls below specified prices. All of these shares are eligible for resale pursuant to a registration statement that became effective on July 30, 2004. In January 2005, 95% of STT Communications’ outstanding convertible secured notes and associated interest were converted into shares of our non-voting Series A-1 preferred stock. In February 2005, STT Communications elected to convert all of the shares of Series A-1 preferred stock into 4.1 million shares of our common stock. The shares of common stock are eligible for resale pursuant to a registration statement that became effective on December 22, 2004. Sales of a substantial number of shares of our common stock by these parties within any narrow period of time could cause our stock price to fall. In addition, the issuance of the additional shares of our common stock as a result of these transactions will reduce our earnings per share, if any. This dilution could reduce the market price of our common stock unless and until we achieve revenue growth or cost savings and other business economies sufficient to offset the effect of this issuance. We cannot assure you that we will achieve revenue growth, cost savings or other business economies.

A significant number of our shares may be sold into the public market if STT Communications defaults on its credit facility, which could cause the market price of our common stock to drop significantly.

As of December 31, 2004, STT Communications held 2,970,414 shares of our common stock and held securities convertible into 7,025,534 additional shares of our common stock. STT Communications has pledged to its lenders its ownership interest in the majority of its secured notes and warrants purchased in the financing and its common and preferred stock issued in the combination as collateral for its secured credit facility. If STT Communications defaults on its credit facility, the stock, warrants and secured notes owned by STT Communications could be transferred to its lenders or sold to third parties. In the event of default, the new owner of the secured notes, stock and warrants could convert them into our common stock and sell them, along with the common stock, into the public market. Sales of a substantial number of shares of our common stock by these parties within any narrow period of time could cause our stock price to fall. In addition, the issuance of the additional shares of our common stock as a result of these transactions will reduce our earnings per share, if any.

We depend on a number of third parties to provide Internet connectivity to our IBX centers; if connectivity is interrupted or terminated, our operating results and cash flow could be materially adversely affected.

The presence of diverse telecommunications carriers’ fiber networks in our IBX centers is critical to our ability to attract new customers. We believe that the availability of carrier capacity will directly affect our ability to achieve our projected results.

We are not a telecommunications carrier, and as such we rely on third parties to provide our customers with carrier services. We rely primarily on revenue opportunities from the telecommunications carriers’ customers to encourage them to invest the capital and operating resources required to build facilities from their locations to our IBX centers. Carriers will likely evaluate the revenue opportunity of an IBX center based on the assumption that the environment will be highly competitive. We cannot assure you that any carrier will elect to offer its services within our IBX centers or that once a carrier has decided to provide Internet connectivity to our IBX centers that it will continue to do so for any period of time.

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The construction required to connect multiple carrier facilities to our IBX centers is complex and involves factors outside of our control, including regulatory processes and the availability of construction resources. If the establishment of highly diverse Internet connectivity to our IBX centers does not occur or is materially delayed or is discontinued, our operating results and cash flow will be adversely affected. Further, many carriers are experiencing business difficulties or announcing consolidations. As a result, some carriers may be forced to downsize or terminate connectivity within our IBX centers.

Any failure of our physical infrastructure or services could lead to significant costs and disruptions that could reduce our revenue and harm our business reputation and financial results.

Our business depends on providing customers with highly reliable service. We must protect customers’ IBX infrastructure and customers’ equipment located in our IBX centers. We have recently acquired long-term leases to three IBX centers not built by us. If these recently leased IBX centers and their infrastructure assets are not in the condition we believe them to be in, we may be required to incur substantial additional costs to repair or upgrade the facilities. The services we provide in each of our IBX centers, whether recently acquired or not, are subject to failure resulting from numerous factors, including:

Problems at one or more of our IBX centers, whether or not within our control, could result in service interruptions or significant equipment damage. We have service level commitment obligations to certain of our customers. As a result, service interruptions or significant equipment damage in our IBX centers could result in difficulty maintaining service level commitments to these customers. In the past, a limited number of our customers have experienced temporary losses of power and failure of our services levels on products such as bandwidth connectivity. If we incur significant financial commitments to our customers in connection with a loss of power, or our failure to meet other service level commitment obligations, our liability insurance may not be adequate to cover those expenses. In addition, any loss of services, equipment damage or inability to meet our service level commitment obligations, particularly in the early stage of our development, could reduce the confidence of our customers and could consequently impair our ability to obtain and retain customers, which would adversely affect both our ability to generate revenues and our operating results.

Furthermore, we are dependent upon Internet service providers, telecommunications carriers and other website operators in the U.S., Asia and elsewhere, some of which may have experienced significant system failures and electrical outages in the past. Users of our services may in the future experience difficulties due to system failures unrelated to our systems and services. If for any reason, these providers fail to provide the required services, our business, financial condition and results of operations could be materially adversely impacted.

A portion of the managed services business we acquired in the combination involves the processing and storage of confidential customer information. Inappropriate use of those services could jeopardize the security of customers’ confidential information causing losses of data or financially impacting us or our customers. Efforts to alleviate problems caused by computer viruses or other inappropriate uses or security breaches may lead to interruptions, delays or cessation of our managed services.

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There is no known prevention or defense against denial of service attacks. During a prolonged denial of service attack, Internet service may not be available for several hours, thus impacting hosted customers’ on-line business transactions. Affected customers might file claims against us under such circumstances. Our property and liability insurance may not be adequate to cover these customer claims.

We resell products and services of third parties that may require us to pay for such services even if our customers fail to pay us for the services, which may have a negative impact on our operating results.

In order to provide resale services such as bandwidth, managed services and other network management services, we will contract with third party service providers. These services require us to enter into fixed term contracts for services with third party suppliers of products and services. If we experience the loss of a customer who has purchased a resale product, we will remain obligated to continue to pay our suppliers for the term of the underlying contracts. The payment of these obligations without a corresponding payment from customers will reduce our financial resources and may have a material adverse affect on our financial performance and operating results.

IBM accounts for a significant portion of our revenues, and the loss of IBM as a customer could significantly harm our business, financial condition and results of operations.

For the years ended December 31, 2004, 2003 and 2002, IBM accounted for 13%, 15% and 20%, respectively, of our revenue. We expect that IBM will continue to account for a significant portion of our revenue for the foreseeable future, although we expect revenues received from IBM to decline as a percentage of our total revenues as we add new customers in our IBX centers. Although the term of our IBM contract runs through 2009, IBM currently has the right to reduce its commitment to us pursuant to the terms and requirements of its customer agreement. If we lose IBM as a customer, our business, financial condition and results of operations could be adversely affected.

We may not be able to compete successfully against current and future competitors.

Our IBX centers and other products and services must be able to differentiate themselves from existing providers of space and services for telecommunications companies, web hosting companies and other colocation providers. In addition to competing with neutral colocation providers, we must compete with traditional colocation providers, including local phone companies, long distance phone companies, Internet service providers and web hosting facilities. Likewise, with respect to our other products and services, including managed services, bandwidth services and security services, we must compete with more established providers of similar services. Most of these companies have longer operating histories and significantly greater financial, technical, marketing and other resources than us.

Because of their greater financial resources, some of our competitors have the ability to adopt aggressive pricing policies, especially if they have been able to restructure their debt or other obligations. As a result, in the future, we may suffer from pricing pressure that would adversely affect our ability to generate revenues and adversely affect our operating results. In addition, these competitors could offer colocation on neutral terms, and may start doing so in the same metropolitan areas where we have IBX centers. Some of these competitors may also provide our target customers with additional benefits, including bundled communication services, and may do so in a manner that is more attractive to our potential customers than obtaining space in our IBX centers. We believe our neutrality provides us with an advantage over these competitors. However, if these competitors were able to adopt aggressive pricing policies together with offering colocation space, our ability to generate revenues would be materially adversely affected.

We may also face competition from persons seeking to replicate our IBX concept by building new centers or converting existing centers that some of our competitors are in the process of divesting. We may experience competition from our landlords in this regard. Rather than leasing available space in our buildings to large single

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tenants, they may decide to convert the space instead to smaller square foot units designed for multi-tenant colocation use. Landlords may enjoy a cost effective advantage in providing similar services as our IBXs, and this could also reduce the amount of space available to us for expansion in the future. Competitors may operate more successfully or form alliances to acquire significant market share. Furthermore, enterprises that have already invested substantial resources in outsourcing arrangements may be reluctant or slow to adopt our approach that may replace, limit or compete with their existing systems. In addition, other companies may be able to attract the same potential customers that we are targeting. Once customers are located in competitors’ facilities, it may be extremely difficult to convince them to relocate to our IBX centers.

Our success in retaining key employees and discouraging them from moving to a competitor is an important factor in our ability to remain competitive. As is common in our industry, our employees are typically compensated through grants of stock options in addition to their regular salaries. We occasionally grant new stock options to employees as an incentive to remain with the company. To the extent we are unable to adequately maintain these stock option incentives and should employees decide to leave the company, this may be disruptive to our business and may adversely affect our business, financial condition and results of operations.

Because we depend on the development and growth of a balanced customer base, failure to attract and retain this base of customers could harm our business and operating results.

Our ability to maximize revenues depends on our ability to develop and grow a balanced customer base, consisting of a variety of companies, including network service providers, site and performance management companies, and enterprise and content companies. The more balanced the customer base within each IBX hub, the better we will be able to generate significant interconnection revenues, which in turn increases our overall revenues. Our ability to attract customers to our IBX centers will depend on a variety of factors, including the presence of multiple carriers, the mix of products and services offered by us, the overall mix of customers, the IBX hub’s operating reliability and security and our ability to effectively market our services. In addition, some of our customers are and will continue to be Internet companies that face many competitive pressures and that may not ultimately be successful. If these customers do not succeed, they will not continue to use the IBX centers. This may be disruptive to our business and may adversely affect our business, financial condition and results of operations.

Our products and services have a long sales cycle that may materially adversely affect our business, financial condition and results of operations.

A customer’s decision to license cabinet space in one of our IBX centers and to purchase additional services typically involves a significant commitment of resources. In addition, some customers will be reluctant to commit to locating in our IBX centers until they are confident that the IBX center has adequate carrier connections. As a result, we have a long sales cycle. Delays due to the length our sales cycle may materially adversely affect our business, financial condition and results of operations.

We are subject to securities class action litigation, which may harm our business and results of operations.

In the past, securities class action litigation has often been brought against a company following periods of volatility in the market price of its securities. During the quarter ended September 30, 2001, putative shareholder class action lawsuits were filed against us, a number of our officers and directors, and several investment banks that were underwriters of our initial public offering. The suits allege that the underwriter defendants agreed to allocate stock in our initial public offering to certain investors in exchange for excessive and undisclosed commissions and agreements by those investors to make additional purchases in the aftermarket at pre-determined prices. Plaintiffs allege that the prospectus for our initial public offering was false and misleading and in violation of the securities laws because it did not disclose these arrangements. In July 2003, a special litigation committee of our board of directors agreed to participate in a settlement with the plaintiffs. The settlement agreement is subject to court approval and sufficient participation by defendants in similar actions. If the

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proposed settlement is not approved by the court or a sufficient number of defendants do not participate in the settlement, the defense of this litigation may continue and therefore increase our expenses and divert management’s attention and resources. An adverse outcome in this litigation could seriously harm our business and results of operations. In addition, we may, in the future, be subject to other securities class action or similar litigation.

Risks Related to Our Industry

If the use of the Internet and electronic business does not grow, our revenues may not grow.

Acceptance and use of the Internet may not continue to develop at historical rates and a sufficiently broad base of consumers may not adopt or continue to use the Internet and other online services as a medium of commerce. Demand for Internet services and products are subject to a high level of uncertainty and are subject to significant pricing pressure, especially in Asia-Pacific. As a result, we cannot be certain that a viable market for our IBX centers will materialize. If the market for our IBX centers grows more slowly than we currently anticipate, our revenues may not grow and our operating results could suffer.

Government regulation may adversely affect the use of the Internet and our business.

Various laws and governmental regulations governing Internet related services, related communications services and information technologies, and electronic commerce remain largely unsettled, even in areas where there has been some legislative action. This is true both in the U.S. and the various foreign countries in which we operate. It may take years to determine whether and how existing laws, such as those governing intellectual property, privacy, libel, telecommunications services, and taxation, apply to the Internet and to related services such as ours. We have limited experience with such international regulatory issues and substantial resources may be required to comply with regulations or bring any non-compliant business practices into compliance with such regulations. In addition, the development of the market for online commerce and the displacement of traditional telephony service by the Internet and related communications services may prompt an increased call for more stringent consumer protection laws or other regulation both in the U.S. and abroad that may impose additional burdens on companies conducting business online and their service providers. The compliance with, adoption or modification of, laws or regulations relating to the Internet, or interpretations of existing laws, could have a material adverse effect on our business, financial condition and results of operation.

Industry consolidation may have a negative impact on our business model.

The telecommunications industry is currently undergoing a consolidation. As customers combine businesses, they may require less colocation space, and there may be fewer networks available to choose from. Given the competitive and evolving nature of this industry, further consolidation of our customers and/or our competitors may present a risk to our network neutral business model and have a negative impact on our revenues.

Terrorist activity throughout the world and military action to counter terrorism could adversely impact our business.

The September 11, 2001 terrorist attacks in the U.S., the ensuing declaration of war on terrorism and the continued threat of terrorist activity and other acts of war or hostility appear to be having an adverse effect on business, financial and general economic conditions internationally. These effects may, in turn, increase our costs due to the need to provide enhanced security, which would have a material adverse effect on our business and results of operations. These circumstances may also adversely affect our ability to attract and retain customers, our ability to raise capital and the operation and maintenance of our IBX centers. We may not have adequate property and liability insurance to cover such catastrophic events or attacks.

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Recent Accounting Pronouncements

In January 2003, the FASB issued FASB Interpretation No. 46, or FIN 46, “Consolidation of Variable Interest Entities, an Interpretation of ARB No. 51.” FIN 46 requires certain variable interest entities to be consolidated by the primary beneficiary of the entity if the equity investors in the entity do not have the characteristics of a controlling financial interest or do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties. FIN 46 is effective immediately for all new variable interest entities created or acquired after January 31, 2003. In December 2003, the FASB released a revised version of FIN 46 clarifying certain aspects of FIN 46 and providing certain entities with exemptions from the requirements of FIN 46. For variable interest entities created or acquired prior to February 1, 2003, the provisions of FIN 46 must be applied for the first interim or annual period ending after March 15, 2004. The adoption of FIN 46 did not have a material impact on our results of operations, financial position or cash flows.

In May 2003, the FASB issued SFAS No. 150, “Accounting for Certain Financial Instruments with Characteristics of both Liabilities and Equity.” SFAS No. 150 establishes standards for how an issuer classifies and measures in its statement of financial position certain financial instruments with characteristics of both liabilities and equity. It requires that an issuer classify a financial instrument that is within its scope as a liability (or an asset in some circumstances) because that financial instrument embodies an obligation of the issuer. In November 2003, the FASB issued FASB Staff Position FASB 150-3 which deferred the measurement provisions of SFAS No. 150 indefinitely for certain mandatorily redeemable non-controlling interests that were issued before November 5, 2003. The FASB plans to reconsider implementation issues and, perhaps, classification or measurement guidance for those non-controlling interests during the deferral period. In 2003, we applied certain disclosure requirements of SFAS No. 150. To date, the impact of the effective provisions of SFAS No. 150 have not had a material impact on our results of operations, financial position or cash flows. While the effective date of certain elements of SFAS No. 150 have been deferred, the adoption of SFAS No. 150 when finalized is not expected to have a material impact on our financial position, results of operations or cash flows.

In March 2004, the FASB approved EITF Issue 03-6 “Participating Securities and the Two-Class Method under FAS 128.” EITF Issue 03-6 supersedes the guidance in Topic No. D-95, “Effect of Participating Convertible Securities on the Computation of Basic Earnings per Share”, and requires the use of the two-class method of participating securities. The two-class method is an earnings allocation formula that determines earnings per share for each class of common stock and participating security according to dividends declared (or accumulated) and participation rights in undistributed earnings. In addition, EITF Issue 03-6 addresses other forms of participating securities, including options, warrants, forwards and other contracts to issue an entity’s common stock, with the exception of stock-based compensation (unvested options and restricted stock) subject to the provisions of APB Opinion No. 25 and FASB No. 123. EITF Issue 03-6 is effective for reporting periods beginning after March 31, 2004 and should be applied by restating previously reported earnings per share. We adopted the provisions of EITF Issue 03-6 during the second quarter of 2004. The adoption of EITF Issue 03-6 did not have a material effect on our basic and diluted net loss per share data at this time.

In June 2004, the FASB issued EITF Issue 03-1 “The Meaning of Other-Than-Temporary Impairment and Its Application to Certain Investments.” EITF Issue 03-1 establishes a common approach to evaluating other-than-temporary impairment to investments in an effort to reduce the ambiguity in impairment methodology found in APB Opinion No. 18, “The Equity Method of Accounting for Investments in Common Stock” and FASB No. 115, “Accounting for Certain Investments in Debt and Equity Securities”, which has resulted in inconsistent application. In September 2004, the FASB issued FASB Staff Position EITF Issue 03-1-1, which deferred the effective date for the measurement and recognition guidance clarified in EITF Issue 03-1 indefinitely; however, the disclosure requirements remain effective for fiscal years ending after June 15, 2004. While the effective date for certain elements of EITF Issue 03-1 have been deferred, the adoption of EITF Issue 03-1 when finalized in its current form is not expected to have a material impact on our financial position, results of operations or cash flows.

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In November 2004, the FASB approved EITF Issue 04-8 “The Effect of Contingently Convertible Instruments on Diluted Earnings per Share.” EITF Issue 04-8 addresses when contingently convertible instruments should be included in diluted earnings per share. For purposes of EITF Issue 04-8, contingently convertible instruments are instruments that have embedded conversion features that are contingently convertible or exercisable based on (a) a market price trigger or (b) multiple contingencies if one of the contingencies is a market price trigger and the instrument can be converted or share settled based on meeting the specified market condition. EITF Issue 04-8 is effective for reporting periods beginning after December 15, 2004 and should be applied by restating previously reported earnings per share data. We adopted the provisions of EITF Issue 04-8 during the fourth quarter of 2004. The adoption of EITF Issue 04-8 did not have a material effect on our diluted net loss per share data at this time.

In December 2004, the FASB issued SFAS No. 123(R), “Share-Based Payment.” SFAS No. 123(R) revises SFAS No. 123, “Accounting for Stock-Based Compensation” and requires companies to expense the fair value of employee stock options and other forms of stock-based compensation, such as employee stock purchase plans and restricted stock awards. In addition, SFAS No. 123(R) supercedes Accounting Principles Board Opinion (APB) No. 25, “Accounting for Stock Issued to Employees” and amends SFAS No. 95, “Statement of Cash Flows.” Under the provisions of SFAS No. 123(R), stock-based compensation awards must meet certain criteria in order for the award to qualify for equity classification. An award that does not meet those criteria will be classified as a liability and be remeasured each period. SFAS No. 123(R) retains the requirements on accounting for the income tax effects of stock-based compensation contained in SFAS No. 123; however, it changes how excess tax benefits will be presented in the statement of cash flows. SFAS No. 123(R) is effective for reporting periods beginning after June 15, 2005. Senior management is currently considering the financial accounting, income tax and internal control implications of SFAS No. 123(R). The adoption of SFAS No. 123(R) is expected to have a significant impact on our financial position and results of operations.

In December 2004, the FASB issued SFAS No. 153, “Exchanges of Nonmonetary Assets, an Amendment of APB Opinion No. 29.” SFAS No. 153 addresses the measurement of exchanges of nonmonetary assets. It eliminates the exception from fair value measurement for nonmonetary exchanges of similar productive assets contained in APB Opinion No. 29 and replaces it with an exception for exchanges that do not have commercial substance. SFAS No. 153 specifies that a nonmonetary exchange has commercial substance if the future cash flows of an entity are expected to change significantly as a result of the exchange. SFAS No. 153 is effective for fiscal periods beginning after June 15, 2005. As the provisions of SFAS No. 153 are to be applied prospectively, the adoption of SFAS No. 153 will not have an impact on our historical financial statements; however, we will assess the impact of the adoption of this pronouncement on any future nonmonetary transactions that we enter into, if any.

ITEM 7A.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market Risk

The following discussion about market risk disclosures involves forward-looking statements. Actual results could differ materially from those projected in the forward-looking statements. We may be exposed to market risks related to changes in interest rates and foreign currency exchange rates and to a lesser extent we are exposed to fluctuations in the prices of certain commodities, primarily electricity.

In the past, we have employed foreign currency forward exchange contracts for the purpose of hedging certain specifically identified net currency exposures. The use of these financial instruments was intended to mitigate some of the risks associated with fluctuations in currency exchange rates, but does not eliminate such risks. We may decide to employ such contracts again in the future. We do not use financial instruments for trading or speculative purposes.

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Interest Rate Risk

The Company’s exposure to market risk resulting from changes in interest rates relates primarily to our investment portfolio. All of our cash equivalents and marketable securities are designated as available-for-sale and are therefore recorded at fair market value on our balance sheet with the unrealized gains or losses reported as a separate component of other comprehensive income. The fair market value of our marketable securities could be adversely impacted due to a rise in interest rates, but we do not believe such impact would be material. Securities with longer maturities are subject to a greater interest rate risk than those with shorter maturities and at December 31, 2004 our portfolio maturity was relatively short. If current interest rates were to increase or decrease by 10%, the fair market value of our investment portfolio could increase or decrease by $120,000.

An immediate 10% increase or decrease in current interest rates would furthermore not have a material impact to our debt obligations due to the fixed nature of our long-term debt obligation. However, the interest expense associated with our $25.0 million revolving credit line, which bears interest at floating rates, plus applicable margins, based on either the prime rate or LIBOR could be affected. As of December 31, 2004, the $25.0 million revolving credit line had an effective interest rate of 4.40%; however, through the date of filing of this report on Form 10-K, no drawings are outstanding under this line of credit. The fair market value of our long-term fixed interest rate debt is subject to interest rate risk. Generally, the fair market value of fixed interest rate debt will increase as interest rates fall and decrease as interest rates rise. These interest rate changes may affect the fair market value of the fixed interest rate debt but does not impact our earnings or cash flows.

The fair market value of our convertible subordinated debentures is based on quoted market prices. The estimated fair value of our convertible subordinated debentures as of December 31, 2004 was approximately $106.2 million.

Foreign Currency Risk

Prior to December 31, 2002, all of our recognized revenue had been denominated in U.S. dollars, generated mostly from customers in the U.S., and our exposure to foreign currency exchange rate fluctuations had been minimal. However, commencing in fiscal 2003, as a result of the combination, approximately 15% of our revenues and approximately 18% of our costs were in the Asia-Pacific region, and a large portion of those revenues and costs were denominated in a currency other than the U.S. dollar, primarily the Singapore dollar, Japanese yen and Hong Kong and Australian dollars. As a result, our operating results and cash flows will be impacted due to currency fluctuations relative to the U.S. dollar. Going forward, we continue to expect that approximately 15% of our revenues and costs will continue to be generated and incurred in the Asia-Pacific region in currencies other than the U.S. dollar, similar to 2003.

Furthermore, to the extent that our international sales are denominated in U.S. dollars, an increase in the value of the U.S. dollar relative to foreign currencies could make our services less competitive in the international markets. Although we will continue to monitor our exposure to currency fluctuations, and when appropriate, may use financial hedging techniques in the future to minimize the effect of these fluctuations, there can be no assurance that exchange rate fluctuations will not adversely affect our financial results in the future.

Commodity Price Risk

Certain operating costs incurred by us are subject to price fluctuations caused by the volatility of underlying commodity prices. The commodities most likely to have an impact on our results of operations in the event of significant price changes are electricity and supplies and equipment used in our IBX centers. We are closely monitoring the cost of electricity, particularly in California. We do not employ forward contracts or other financial instruments to hedge commodity price risk.

ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

The financial statements and supplementary data required by this Item 8 are listed in Item 15(a)(1) and begin at page F-1 of this Report.

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There is no disclosure to report pursuant to Item 9.

ITEM 9A.    CONTROLS AND PROCEDURES

Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures

Under the supervision and with the participation of our management, including our Chief Executive Officer and our Chief Financial Officer, we conducted an evaluation of our disclosure controls and procedures, as such term is defined under Rule 13a-15(e) promulgated under the Securities Exchange Act of 1934, as amended (the Exchange Act). Based on this evaluation, our Chief Executive Officer and our Chief Financial Officer concluded that our disclosure controls and procedures were effective as of the end of the period covered by this annual report.

Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission.

Based on our evaluation under the framework in Internal Control—Integrated Framework, our management concluded that our internal control over financial reporting was effective as of December 31, 2004.

Our management’s assessment of the effectiveness of our internal control over financial reporting as of December 31, 2004 has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which is included herein on page F-1 of this Annual Report on Form 10-K.

ITEM 9B.    OTHER INFORMATION

There is no disclosure to report pursuant to Item 9B.

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PART III

ITEM 10.    DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

(a)    Identification of Directors. Information concerning the directors of Equinix is set forth under the heading “Election of Directors” in the Equinix Proxy Statement for the 2005 Annual Meeting of Stockholders and is incorporated herein by reference.

(b)    Identification of Executive Officers. Information concerning executive officers of Equinix is set forth under the caption “Other Executive Officers” in the Equinix Proxy Statement for the 2005 Annual Meeting of Stockholders and is incorporated herein by reference.

(c)    Audit Committee Financial Expert. Information concerning Equinix’s audit committee financial expert is set forth under the heading “Report of the Audit Committee of the Board of Directors” in the Equinix Proxy Statement for the 2005 Annual Meeting of Stockholders and is incorporated herein by reference.

(d)    Identification of the Audit Committee. Information concerning the audit committee of Equinix is set forth under the heading “Report of the Audit Committee of the Board of Directors” in the Equinix Proxy Statement for the 2005 Annual Meeting of Stockholders and is incorporated herein by reference.

(e)    Section 16(a) Beneficial Ownership Reporting Compliance. Information concerning compliance with beneficial ownership reporting requirements is set forth under the caption “Compliance with Section 16(a) of the Exchange Act” in the Equinix Proxy Statement for the 2005 Annual Meeting of Stockholders and is incorporated herein by reference.

(f)    Code of Ethics. Information concerning the Equinix Code of Ethics and Business Conduct is set forth under the caption “Code of Ethics and Business Conduct” in the Equinix Proxy Statement for the 2005 Annual Meeting of Stockholders and is incorporated herein by reference. The Code of Ethics and Business Conduct can also be found on our website, www.equinix.com.

ITEM 11.    EXECUTIVE COMPENSATION

Information concerning executive compensation is set forth under the headings “Executive Compensation and Related Information”, and “Report of the Compensation Committee of the Board of Directors” in the Equinix Proxy Statement for the 2005 Annual Meeting of Stockholders and is incorporated herein by reference.

ITEM 12.    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

Information concerning shares of Equinix equity securities beneficially owned by certain beneficial owners and by management is set forth under the heading “Security Ownership of Certain Beneficial Owners and Management” in the Equinix Proxy Statement for the 2005 Annual Meeting of Stockholders and is incorporated herein by reference.

ITEM 13.    CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

Information concerning certain relationships and related transactions is set forth under the heading “Certain Relationships and Related Transactions” in the Equinix Proxy Statement for the 2005 Annual Meeting of Stockholders and is incorporated herein by reference.

ITEM 14.    PRINCIPAL ACCOUNTANT FEES AND SERVICES

Information concerning fees and services of the Company’s principal accountants is set forth under the heading “Report of the Audit Committee of the Board of Directors” in the Equinix Proxy Statement for the 2005 Annual Meeting of Stockholders and is incorporated herein by reference.

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PART IV

ITEM 15.    EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a)(1)  Financial Statements: