Corporate Data

Corporate Information

Ownership Structure

Consolidated Financial Information

Key Quarterly Financial Data

Consolidated Balance Sheets

Consolidated Quarterly Statements of Operations

Funds From Operations and Adjusted Funds From Operations

Reconciliation of Earnings Before Interest, Taxes, Depreciation and Amortization and Financial Ratios

Same Store and New Properties Consolidated Quarterly Statements of Operations

Same Store Operating Trend Summary

Consolidated Debt Analysis and Global Revolving Credit Facility

Debt Maturities

Debt Analysis & Covenant Compliance

Portfolio Data

Portfolio Summary

Properties Acquired

Occupancy Analysis

Top 20 Tenants by Annualized Rent

Lease Expirations and Lease Distribution

Lease Expirations - By Product Type

Summary of Leasing Activity - Signed

Summary of Leasing Activity - Commenced

Historical Capital Expenditures

Construction Activity Report

Construction Projects in Progress and Total Estimated Direct Cost

Definitions

Management Statements on Non-GAAP Supplemental Measures

the impact of the recent deterioration in global economic, credit and market conditions, including the downgrade of the U.S. government’s credit rating;

current local economic conditions in our geographic markets;

decreases in information technology spending, including as a result of economic slowdowns or recession;

adverse economic or real estate developments in our industry or the industry sectors that we sell to (including risks relating to decreasing real estate valuations and impairment charges);

our dependence upon significant tenants;

bankruptcy or insolvency of a major tenant or a significant number of smaller tenants;

defaults on or non-renewal of leases by tenants;

our failure to obtain necessary debt and equity financing;

increased interest rates and operating costs;

risks associated with using debt to fund our business activities, including re-financing and interest rate risks, our failure to repay debt when due, adverse changes in our credit ratings or our breach of covenants or other terms contained in our loan facilities and agreements;

financial market fluctuations;

changes in foreign currency exchange rates;

our inability to manage our growth effectively;

difficulty acquiring or operating properties in foreign jurisdictions;

our failure to successfully integrate and operate acquired or redeveloped properties or businesses;

risks related to joint venture investments, including as a result of our lack of control of such investments;

delays or unexpected costs in development or redevelopment of properties;

decreased rental rates or increased vacancy rates;

increased competition or available supply of data center space;

our inability to successfully develop and lease new properties and space held for redevelopment;

difficulties in identifying properties to acquire and completing acquisitions;

our inability to acquire off-market properties;

our inability to comply with the rules and regulations applicable to reporting companies;

our failure to maintain our status as a REIT;

possible adverse changes to tax laws;

restrictions on our ability to engage in certain business activities;

environmental uncertainties and risks related to natural disasters;

losses in excess of our insurance coverage;

changes in foreign laws and regulations, including those related to taxation and real estate ownership and operation; and

changes in local, state and federal regulatory requirements, including changes in real estate and zoning laws and increases in real property tax rates.

Bank of America

Merrill Lynch

Common Stock:

Series E Preferred Stock:

Series F Preferred Stock:

Standard & Poors

Corporate Credit Rating

Preferred Stock

Moody’s

Issuer Rating

Preferred Stock

Fitch

Issuer Default Rating

Preferred Stock

High Price *

Low Price *

Closing Price, end of quarter *

Average daily trading volume *

Indicated dividend per common share **

Closing annual dividend yield, end of quarter

Closing shares and units outstanding, end of quarter ***

Closing market value of shares and units outstanding (thousands), end of quarter

Partner

Digital Realty Trust, Inc.

Cambay Tele.com, LLC ⁽³⁾

Directors, Executive Officers and Others

Total

Shares and Units at End of Quarter

Common shares outstanding

Common units outstanding

Total shares and operating partnership units

Enterprise Value

Market value of common equity ⁽¹⁾

Liquidation value of preferred equity

Total debt at balance sheet carrying value

Total enterprise value

Total debt/Total enterprise value

Selected Balance Sheet Data

Investments in real estate (before depreciation)

Total assets

Total liabilities

Selected Operating Data

Total operating revenues

Total operating expenses

Interest expense

Net income

Net income available to common stockholders

Financial Ratios

EBITDA ⁽²⁾

Adjusted EBITDA ⁽³⁾

Cash interest expense ⁽⁴⁾

Fixed charges ⁽⁵⁾

Debt service coverage ratio ⁽⁶⁾

Fixed charge coverage ratio ⁽⁷⁾

Profitability Measures

Net income per common share - basic

Net income per common share - diluted

Funds From Operations (FFO) per diluted share and unit ⁽⁸⁾

Adjusted Funds From Operations (AFFO) per diluted share and unit ⁽⁹⁾

Dividends per share and common unit

Diluted FFO payout ratio ⁽¹⁰⁾

Diluted AFFO payout ratio ^{(9) (11)}

Portfolio Statistics

Buildings

Properties

Net rentable square feet, excluding development space

Square feet held for development ⁽¹²⁾

Occupancy at end of quarter ⁽¹³⁾

Weighted average remaining lease term (years) ⁽¹⁴⁾

Same store occupancy at end of quarter ^(13)(15)

ASSETS

Investments in real estate

Land

Acquired ground leases

Buildings and improvements

Tenant improvements

Investments in real estate

Accumulated depreciation and amortization

Net investments in properties

Investment in unconsolidated joint ventures

Net investments in real estate

Cash and cash equivalents

Accounts and other receivables, net of allowance for doubtful accounts of $3,609 and $2,436 as of December 31, 2012 and December 31, 2011, respectively

Deferred rent

Acquired above market leases, net

Acquired in place lease value and deferred leasing costs, net

Deferred financing costs, net

Restricted cash

Other assets

Total Assets

LIABILITIES AND EQUITY

Global revolving credit facility

Unsecured term loan

Unsecured senior notes, net of discount

Exchangeable senior debentures

Mortgage loans, net of premiums

Other secured loans

Accounts payable and other accrued liabilities

Accrued dividends and distributions

Acquired below market leases, net

Security deposits and prepaid rents

Total Liabilities

Commitments and contingencies

EQUITY:

Stockholders’ equity:

Preferred Stock: $0.01 par value per share, 30,000,000 shares authorized:

Series C Cumulative Convertible Preferred Stock, 4.375%, $0 and $128,159 liquidation preference, respectively ($25.00 per share), 0 and 5,126,364 shares issued and outstanding as of December 31, 2012 and December 31, 2011, respectively

Series D Cumulative Convertible Preferred Stock, 5.500%, $123,413 and $174,426 liquidation preference, respectively ($25.00 per share), 4,936,505 and 6,977,055 shares issued and outstanding as of December 31, 2012 and December 31, 2011, respectively

Series E Cumulative Redeemable Preferred Stock, 7.000%, $287,500 and $287,500 liquidation preference, respectively ($25.00 per share), 11,500,000 and 11,500,000 shares issued and outstanding as of December 31, 2012 and December 31, 2011, respectively

Series F Cumulative Redeemable Preferred Stock, 6.625%, $182,500 and $0 liquidation preference, respectively ($25.00 per share), 7,300,000 and 0 shares issued and outstanding as of December 31, 2012 and December 31, 2011, respectively

Common Stock: $0.01 par value per share, 165,000,000 shares authorized, 125,140,783 and 106,039,279 shares issued and outstanding as of December 31, 2012 and December 31, 2011, respectively

Additional paid-in capital

Dividends in excess of earnings

Accumulated other comprehensive income, net

Total stockholders’ equity

Noncontrolling interests:

Noncontrolling interest in operating partnership

Noncontrolling interest in consolidated joint ventures

Total noncontrolling interests

Total Equity

Total Liabilities and Equity

Rental

Tenant reimbursements

Construction management

Other

Total operating revenues

Rental property operating and maintenance

Property taxes

Insurance

Construction management