Exhibit 99.1

CenturyLink Reports Second Quarter 2018 Results

Second Quarter Highlights

MONROE, La., Aug. 8, 2018 – CenturyLink, Inc. (NYSE: CTL) today reported results for the second quarter 2018.

“Our continued progress on integration efforts contributed to a solid quarter, with strong growth in Adjusted EBITDA and Free Cash Flow,” said Jeff Storey, president and CEO of CenturyLink. “Across the company, we are focused on profitable growth and providing a better experience for our customers and employees.”

Total revenue was $5.90 billion for the second quarter 2018, compared to $6.04 billion for the second quarter 2017 on a pro forma basis.

Diluted earnings per share was $0.27 for the second quarter 2018, compared to diluted earnings per share of $0.06 for the second quarter 2017. Diluted earnings per share for the second quarter 2018, excluding the benefit of $10 million of after-tax integration-related expenses and special items, was $0.26.

Financial Results

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As of January 1, 2018, the company prospectively adopted the new revenue recognition standard (ASC 606). The adoption of this new standard negatively affected total revenue in the second quarter 2018 by approximately $11 million, with a $27 million negative effect on Consumer revenue and an overall $16 million positive effect on Business revenue. Within Business, the revenue recognition standard had a benefit of approximately $14 million to the Medium and Small Business unit and approximately $4 million to the International and Global Accounts business unit. The Enterprise and the Wholesale and Indirect business units were affected minimally.

Cash Flow

Free Cash Flow, excluding integration-related expenses and special items, was $919 million in the second quarter 2018, compared to $102 million in the second quarter 2017 on a pro forma basis.

As of June 30, 2018, CenturyLink had cash and cash equivalents of $700 million.

For the year-to-date, the company has contributed a total of $500 million to the pension plan. During the second quarter 2018, the company received a tax refund of $314 million and made its previously planned $100 million contribution to the pension plan. Following the close of the quarter, the company received an additional tax refund of $392 million and made a $400 million additional pension plan contribution.

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Integration Synergies and Expenses

CenturyLink exited the second quarter 2018 with approximately $675 million of annualized run-rate Adjusted EBITDA synergies, related to the Level 3 acquisition, compared to $215 million as of the end of the first quarter 2018.

Integration-related expenses and special items in the second quarter 2018 were $162 million, of which $160 million impacted Adjusted EBITDA and $108 million impacted Free Cash Flow. As of the end of the second quarter 2018, CenturyLink incurred a total of approximately $395 million in Level 3 integration-related expenses.

2018 Business Outlook

“With our strong synergy attainment in the first half of 2018 along with our continued focus on profitable revenue growth, we are increasing our outlook for full year 2018 Adjusted EBITDA and Free Cash Flow,” said Sunit Patel, CenturyLink executive vice president and chief financial officer.

“We now expect full year 2018 Adjusted EBITDA of $9.00 to $9.15 billion, compared to our previous outlook of $8.75 to $8.95 billion. In addition, we increased our Free Cash Flow outlook to $3.60 to $3.80 billion from $3.15 to $3.35 billion.”

The company has also updated full year 2018 outlook measures for Free Cash Flow after Dividends and for the Full Year Effective Tax Rate.

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Investor Call

CenturyLink’s management will host a conference call at 5:00 p.m. ET today, August 8, 2018. The conference call will be streamed live over CenturyLink’s website at ir.centurylink.com. Additional information regarding second quarter 2018 results, including the presentation management will review during the conference call, will be available on the Investor Relations website prior to the call. If you are unable to join the call via the Web, the call can be accessed live at +1 877-283-5145 (U.S. Domestic) or +1 312-281-1200 (International).

A telephone replay of the call will be available beginning at 7:00 p.m. ET on August 8, 2018, and ending November 6, 2018, at 6:00 p.m. ET. The replay can be accessed by dialing +1 800-633-8284 (U.S. Domestic) or +1 402-977-9140 (International), reservation code 21892066. A webcast replay of the call will also be available on our website beginning at 7:00 p.m. ET on August 8, 2018 and ending November 6, 2018 at 6:00 p.m. ET.

About CenturyLink

CenturyLink (NYSE: CTL) is the second largest U.S. communications provider to global enterprise customers. With customers in more than 60 countries and an intense focus on the customer experience, CenturyLink strives to be the world’s best networking company by solving customers’ increased demand for reliable and secure connections. The company also serves as its customers’ trusted partner, helping them manage increased network and IT complexity and providing managed network and cyber security solutions that help protect their business.

Forward Looking Statements

Except for historical and factual information, the matters set forth in this release and other of our oral or written statements identified by words such as “estimates,” “expects,” “anticipates,” “believes,” “plans,” “intends,” and similar expressions are forward-looking statements as defined by the federal securities laws, and are subject to the “safe harbor” protections thereunder. These forward-looking statements are not guarantees of future results and are based on current expectations only, are inherently speculative, and are subject to a number of assumptions, risks and uncertainties, many of which are beyond our control. Actual events and results may differ materially from those anticipated, estimated, projected or implied by us in those statements if one or more of these risks or uncertainties materialize, or if underlying assumptions prove incorrect. Factors that could affect actual results include but are not limited to: the effects of competition from a wide variety of competitive providers, including decreased demand for our legacy offerings and increased pricing pressures; the effects of new, emerging or competing technologies, including those that could make our products less desirable or obsolete; the effects of ongoing changes in the regulation of the communications industry, including the outcome of regulatory or judicial proceedings relating to intercarrier compensation, interconnection obligations, universal service, broadband deployment, data protection and net neutrality; our ability to timely realize the anticipated benefits of our recently-completed combination with Level 3, including our ability to attain anticipated cost savings, to use Level 3’s net operating losses in the amounts projected, to retain key personnel and to avoid unanticipated integration disruptions; our ability to safeguard our network, and to avoid the adverse impact on our business from possible security breaches, service outages, system failures, equipment breakages or similar events impacting our network or the availability and quality of our services; our ability to effectively adjust to changes in the communications industry and changes in the composition of our markets and product mix; possible changes in the demand for our products and services, including our ability to effectively respond to increased demand for high-speed broadband service; our ability to successfully maintain the quality and profitability of our existing product and service offerings, to provision them efficiently to our customers, and to introduce profitable new offerings on a timely and cost-effective basis; our ability to generate cash flows sufficient to fund our financial commitments and objectives, including

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our capital expenditures, operating costs, debt repayments, dividends, pension contributions and other benefits payments; changes in our operating plans, corporate strategies, dividend payment plans or other capital allocation plans, whether based upon changes in our cash flows, cash requirements, financial performance, financial position, market conditions or otherwise; our ability to effectively retain and hire key personnel and to successfully negotiate collective bargaining agreements on reasonable terms without work stoppages; increases in the costs of our pension, health, post-employment or other benefits, including those caused by changes in markets, interest rates, mortality rates, demographics or regulations; adverse changes in our access to credit markets on favorable terms, whether caused by changes in our financial position, lower debt credit ratings, unstable markets or otherwise; our ability to meet the terms and conditions of our debt obligations; our ability to maintain favorable relations with our key business partners, customers, suppliers, vendors, landlords and financial institutions; our ability to effectively manage our network buildout projects and our other expansion opportunities; our ability to collect our receivables from financially troubled customers; any adverse developments in legal or regulatory proceedings involving us; changes in tax, communications, pension, healthcare or other laws or regulations, in governmental support programs, or in general government funding levels; the effects of changes in accounting policies or practices, including potential future impairment charges; the effects of adverse weather, terrorism or other natural or man-made disasters; the effects of more general factors such as changes in interest rates, in exchange rates, in operating costs, in general market, labor, economic or geo-political conditions, or in public policy; and other risks referenced from time to time in our filings with the U.S. Securities and Exchange Commission (“SEC”). For all the reasons set forth above and in our SEC filings, you are cautioned not to unduly rely upon our forward-looking statements, which speak only as of the date made. We undertake no obligation to publicly update or revise any forward-looking statements for any reason, whether as a result of new information, future events or developments, changed circumstances, or otherwise. Furthermore, any information about our intentions contained in any of our forward-looking statements reflects our intentions as of the date of such forward-looking statement, and is based upon, among other things, existing regulatory, technological, industry, competitive, economic and market conditions, and our assumptions as of such date. We may change our intentions, strategies or plans without notice at any time and for any reason.

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Reconciliation to GAAP

This release includes certain non-GAAP historical and forward-looking financial measures, including but not limited to adjusted EBITDA, Free Cash Flow, unlevered cash flow, pro forma financial data and adjustments to both GAAP and Non-GAAP measures to exclude the effect of special items. In addition to providing key metrics for management to evaluate the company’s performance, we believe these measurements assist investors in their understanding of period-to-period operating performance and in identifying historical and prospective trends.

Reconciliations of non-GAAP financial measures to the most comparable GAAP measures are included in the attached financial schedules. Non-GAAP measures are not presented to be replacements or alternatives to the GAAP measures, and investors are urged to consider these non-GAAP measures in addition to, and not in substitution for, measures prepared in accordance with GAAP. CenturyLink may present or calculate its non-GAAP measures differently from other companies.

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CenturyLink, Inc.

CONSOLIDATED STATEMENTS OF INCOME

THREE AND SIX MONTHS ENDED JUNE 30, 2018 AND 2017

(UNAUDITED)

($ in millions, except per share amounts; shares in thousands)

nm - Percentages greater than 200% and comparisons between positive and negative values are considered not meaningful.

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CenturyLink, Inc.

CONDENSED CONSOLIDATED BALANCE SHEETS

AS OF JUNE 30, 2018 AND DECEMBER 31, 2017

(UNAUDITED)

($ in millions)

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CenturyLink, Inc.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

SIX MONTHS ENDED JUNE 30, 2018 AND 2017

(UNAUDITED)

($ in millions)

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CenturyLink, Inc.

OPERATING METRICS

(UNAUDITED)

(In thousands)

CenturyLink’s methodology for counting broadband subscribers may not be comparable to those of other companies.

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Description of Non-GAAP Metrics

Pursuant to Regulation G, the company is hereby providing definitions of non-GAAP financial metrics and reconciliations to the most directly comparable GAAP measures.

The following describes and reconciles those financial measures as reported under accounting principles generally accepted in the United States (GAAP) with those financial measures as adjusted by the items detailed below and presented in the accompanying news release. These calculations are not prepared in accordance with GAAP and should not be viewed as alternatives to GAAP. In keeping with its historical financial reporting practices, the company believes that the supplemental presentation of these calculations provides meaningful non-GAAP financial measures to help investors understand and compare business trends among different reporting periods on a consistent basis.

We use the term Special items as a non-GAAP measure to describe items that impacted a period’s statement of income for which investors may want to give special consideration due to their magnitude, nature or both. We do not use the term non-recurring because while some of these items are special because they are unusual and infrequent, others may recur in future periods.

Adjusted EBITDA ($) is defined as net income (loss) from the Statements of Income before income tax (expense) benefit, total other income (expense), depreciation and amortization and non-cash stock compensation expense.

Adjusted EBITDA Margin (%) is defined as Adjusted EBITDA divided by total revenue.

Management believes that Adjusted EBITDA and Adjusted EBITDA Margin are relevant and useful metrics to provide to investors, as they are an important part of CenturyLink’s internal reporting and are key measures used by Management to evaluate profitability and operating performance of CenturyLink and to make resource allocation decisions. Management believes such measures are especially important in a capital-intensive industry such as telecommunications. Management also uses Adjusted EBITDA and Adjusted EBITDA Margin (and similarly uses these terms excluding acquisition-related expenses) to compare CenturyLink’s performance to that of its competitors and to eliminate certain non-cash and non-operating items in order to consistently measure from period to period its ability to fund capital expenditures, fund growth, service debt and determine bonuses. Adjusted EBITDA excludes non-cash impairment charges and non-cash stock compensation expense because of the non-cash nature of these items. Adjusted EBITDA also excludes interest income, interest expense and income taxes, and in our view constitutes an accrual-based measure that has the effect of excluding period-to-period changes in working capital and shows profitability without regard to the effects of capital or tax structure. Adjusted EBITDA also excludes depreciation and amortization expense because these non-cash expenses primarily reflect the impact of historical capital investments, as opposed to the cash impacts of capital expenditures made in recent periods, which may be evaluated through cash flow measures. Adjusted EBITDA excludes the gain (or loss) on extinguishment and modification of debt and other, net because these items are not related to the primary operations of CenturyLink.

There are limitations to using Adjusted EBITDA as a financial measure, including the difficulty associated with comparing companies that use similar performance measures whose calculations may differ from CenturyLink’s calculations. Additionally, this financial measure does not include certain significant items such as interest income, interest expense, income taxes, depreciation and amortization, non-cash

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impairment charges, non-cash stock compensation expense, the gain (or loss) on extinguishment and modification of debt and net other income (expense). Adjusted EBITDA and Adjusted EBITDA Margin (either with or without acquisition-related expense adjustments) should not be considered a substitute for other measures of financial performance reported in accordance with GAAP.

Unlevered Cash Flow is defined as net cash provided by (used in) operating activities less capital expenditures, plus cash interest paid and less interest income all as disclosed in the Statements of Cash Flows or the Statements of Income. Management believes that Unlevered Cash Flow is a relevant metric to provide to investors, as it is an indicator of the operational strength and performance of CenturyLink and, measured over time, provides management and investors with a sense of the underlying business’ growth pattern and ability to generate cash. Unlevered Cash Flow excludes cash used for acquisitions and debt service and the impact of exchange rate changes on cash and cash equivalents balances.

There are material limitations to using Unlevered Cash Flow to measure CenturyLink’s cash performance as it excludes certain material items such as payments on and repurchases of long-term debt, interest income, cash interest expense and cash used to fund acquisitions. Comparisons of CenturyLink’s Unlevered Cash Flow to that of some of its competitors may be of limited usefulness since CenturyLink does not currently pay a significant amount of income taxes due to net operating loss carryforwards, and therefore, currently generates higher cash flow than a comparable business that does pay income taxes. Additionally, this financial measure is subject to variability quarter over quarter as a result of the timing of payments related to accounts receivable and accounts payable and capital expenditures. Unlevered Cash Flow should not be used as a substitute for net change in cash and cash equivalents in the Consolidated Statements of Cash Flows.

Free Cash Flow is defined as net cash provided by (used in) operating activities less capital expenditures as disclosed in the Statements of Cash Flows. Management believes that Free Cash Flow is a relevant metric to provide to investors, as it is an indicator of the CenturyLink’s ability to generate cash to service its debt. Free Cash Flow excludes cash used for acquisitions, principal repayments and the impact of exchange rate changes on cash and cash equivalents balances.

There are material limitations to using Free Cash Flow to measure CenturyLink’s performance as it excludes certain material items such as principal payments on and repurchases of long-term debt and cash used to fund acquisitions. Comparisons of CenturyLink’s Free Cash Flow to that of some of its competitors may be of limited usefulness since CenturyLink does not currently pay a significant amount of income taxes due to net operating loss carryforwards, and therefore, generates higher cash flow than a comparable business that does pay income taxes. Additionally, this financial measure is subject to variability quarter over quarter as a result of the timing of payments related to interest expense, accounts receivable and accounts payable and capital expenditures. Free Cash Flow should not be used as a substitute for net change in cash and cash equivalents on the Consolidated Statements of Cash Flows.

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CenturyLink, Inc.

Non-GAAP Integration-Related Expenses and Special Items

(UNAUDITED)

($ in millions)

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CenturyLink, Inc.

Consolidated Statements of Income

(UNAUDITED)

($ in millions)

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CenturyLink, Inc.

Condensed Consolidated Statements of Cash Flows

(UNAUDITED)

($ in millions)

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CenturyLink, Inc.

Non-GAAP Cash Flow Reconciliation

(UNAUDITED)

($ in millions)

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CenturyLink, Inc.

Adjusted EBITDA Non-GAAP Reconciliation

(UNAUDITED)

($ in millions)

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Outlook

To enhance the information in our outlook with respect to non-GAAP metrics, we are providing a range for certain GAAP measures that are components of the reconciliation of the non-GAAP metrics. The provision of these ranges is in no way meant to indicate that CenturyLink is explicitly or implicitly providing an outlook on those GAAP components of the reconciliation. In order to reconcile the non-GAAP financial metric to GAAP, CenturyLink has to use ranges for the GAAP components that arithmetically add up to the non-GAAP financial metric. While CenturyLink feels reasonably comfortable about the outlook for its non-GAAP financial metrics, it fully expects that the ranges used for the GAAP components will vary from actual results. We will consider our outlook of non-GAAP financial metrics to be accurate if the specific non-GAAP metric is met or exceeded, even if the GAAP components of the reconciliation are different from those provided in an earlier reconciliation.

CenturyLink, Inc.

2018 OUTLOOK

(UNAUDITED)

($ in millions)

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