EarthLink and Clearwire Announce Wholesale 4G Agreement

EarthLink and Clearwire Announce Wholesale 4G Agreement Clearwire's 4G Mobile Broadband Network to Power EarthLink's Wireless Internet Service; Companies Remain Open to Extending Relationship to LTE Services in the Future BELLEVUE, Wash. and ATLANTA, Sept. 10, 2012 (GLOBE NEWSWIRE) -- Clearwire Corporation (NASDAQ: CLWR), a leading provider of 4G mobile broadband services in the U.S., and EarthLink, Inc. (NASDAQ: ELNK), a leading IT services and communications provider, today announced a wholesale agreement that will enable EarthLink to offer its customers high-speed fixed and mobile broadband service using Clearwire's 4G network. "Clearwire's wholesale 4G services offer a wide range of customer and product options for established and non-traditional wireless entrants seeking to seize the opportunity in the hot mobile broadband market of today," said Don Stroberg, SVP of strategic partnerships and wholesale at Clearwire. "Clearwire's 4G network is a great extension to EarthLink's business, enabling them to add 4G fixed and mobile data plans to their diverse service portfolio. We're thrilled to continue building momentum for our wholesale 4G business as the premier wholesale provider of 4G capacity to carriers, ISPs and other service providers in the U.S." EarthLink's wireless service will initially target consumers for in-home use, and is expected to launch in early 2013. Future product offerings will include mobile devices and new services for small business customers. "Customers are increasingly equating broadband services with wireless services and our wholesale agreement with Clearwire will allow EarthLink to offer the wireless products and services necessary to remain a leader in communications services," said Michael Toplisek, Executive Vice President of Products & Marketing for EarthLink. "The 4G broadband speeds and urban and suburban network focus aligns well with our long-term strategy for growing our customer base. We are excited to leverage Clearwire's leadership in 4G for both WiMAX and LTE in the future." Clearwire is constructing a next-generation 4G LTE Advanced-ready network to address the mobile broadband capacity needs of wholesale customers in urban markets where demand for wireless data is high. As Clearwire's LTE network comes online, EarthLink and Clearwire expect to extend their agreement to offer users even faster speeds.  About Clearwire Clearwire Corporation (NASDAQ: CLWR), through its operating subsidiaries, is a leading provider of 4G wireless broadband services offering services in areas of the U.S. where more than 130 million people live. The company holds the deepest portfolio of wireless spectrum available for data services in the U.S. Clearwire serves retail customers through its own CLEAR® brand as well as through wholesale relationships with some of the leading companies in the retail, technology and telecommunications industries. The company is constructing a next-generation 4G LTE Advanced-ready network to address the capacity needs of the market, and is also working closely with the Global TDD-LTE Initiative and China Mobile to further the TDD-LTE ecosystem. Clearwire is headquartered in Bellevue, Wash. Additional information is available at http://www.clearwire.com. About EarthLink EarthLink, Inc. (NASDAQ: ELNK) is a leading IT services and communications provider to more than 150,000 businesses and one million consumers nationwide. EarthLink empowers customers with managed services including cloud computing, managed and private cloud, and virtualization servicessuch as managed hostingand cloud workspace. EarthLink also offers a robust portfolio of IT security, application hosting, colocation and IT support services. The company operates an extensive network spanning 28,800 route fiber miles with 90 metro fiber rings and 4 secure data centers providing ubiquitous nationwide data and voice IP servicecoverage across more than 90 percent of the country. Founded in 1994, EarthLink's award-winning reputation for outstanding service and product innovation is supported by an experienced team of professionals focused on best-in-class customer care. For more information, visit EarthLink's website at www.earthlink.net. Forward-Looking Statements This release, and other written and oral statements made by Clearwire from time to time, contain forward-looking statements which are based on management's current expectations and beliefs, as well as on a number of assumptions concerning future events made with information that is currently available. Forward-looking statements may include, without limitation, management's expectations regarding future financial and operating performance and financial condition; proposed transactions; network development and market launch plans; strategic plans and objectives; industry conditions; the strength of the balance sheet; and liquidity and financing needs. The words "will," "would," "may," "should," "estimate," "project," "forecast," "intend," "expect," "believe," "target," "designed," "plan" and similar expressions are intended to identify forward-looking statements. Readers are cautioned not to put undue reliance on such forward-looking statements, which are not a guarantee of performance and are subject to a number of uncertainties and other factors, many of which are outside of Clearwire's control, which could cause actual results to differ materially and adversely from such statements. Some factors that could cause actual results to differ are: We have a history of operating losses and we expect to continue to realize significant net losses for the foreseeable future. If our business fails to perform as we expect or if we incur unforeseen expenses in the near term, we will require additional capital to fund our current business. Also, we will need substantial additional capital over the long-term. Such additional capital may not be available on acceptable terms or at all. If we fail to obtain additional capital, our business prospects, financial condition and results of operations will likely be materially and adversely affected, and we will be forced to consider all available alternatives. Our current plans and projections are based on a number of assumptions about our future performance, which may prove to be inaccurate, such as our ability to substantially expand our wholesale business and implement various cost savings initiatives. Our business has become increasingly dependent on our wholesale partners, and Sprint in particular. If we do not receive the amount of revenues we expect from existing wholesale partners or if we are unable to enter into new agreements with additional wholesale partners for new wholesale commitments, our business prospects, results of operations and financial condition could be adversely affected, or we could be forced to consider all available alternatives. We regularly evaluate our plans, and we may elect to pursue new or alternative strategies which we believe would be beneficial to our business, including among other things, expanding our network coverage to new markets, augmenting our network coverage in existing markets, changing our sales and marketing strategy and/or acquiring additional spectrum. Such modifications to our plans could significantly change our capital requirements. We plan to deploy LTE on our wireless broadband network, alongside mobile WiMAX and we will incur significant costs to deploy such technology.  Additionally, LTE technology, or other alternative technologies that we may consider, may not perform as we expect on our network and deploying such technologies would result in additional risks to the company, including uncertainty regarding our ability to successfully add a new technology to our current network and to operate dual technology networks without disruptions to customer service, as well as our ability to generate new wholesale customers for the new network. We currently depend on our commercial partners to develop and deliver the equipment for our legacy and mobile WiMAX networks, and will be dependent on commercial partners to deliver equipment and devices for our planned LTE network as well. Many of our competitors for our retail business are better established and have significantly greater resources, and may subsidize their competitive offerings with other products and services. Our substantial indebtedness and restrictive debt covenants could limit our financing options and liquidity position and may limit our ability to grow our business. Sprint owns just less than a majority of our common shares, is our largest shareholder, and has the contractual ability to obtain enough shares to hold the majority voting interest in the company, and Sprint may have, or may develop in the future, interests that may diverge from other stockholders. Future sales of large blocks of our common stock may adversely impact our stock price. For a more detailed description of the factors that could cause such a difference, please refer to Clearwire's filings with the Securities and Exchange Commission, including the information under the heading "Risk Factors" in our Annual Report on Form 10-K filed on February 16, 2012 and subsequent Form 10-Q filings. Clearwire assumes no obligation to update or supplement such forward-looking statements. CONTACT: Clearwire Susan Johnston, 425-216-7913 susan.johnston@clearwire.com JLM Partners for Clearwire Mike DiGioia or Jeremy Pemble, 206-381-3600 mike@jlmpartners.com or jeremy@jlmpartners.com EarthLink Michele Sadwick, 404-748-7255 Sadwick@corp.earthlink.com

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