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4G Coming to Jacksonville, FL; Kansas City, KS; Nashville, TN; St. Louis, MO; and Salt Lake City, UT among Others

KIRKLAND, Wash. & PHILADELPHIA & OVERLAND PARK, Kan., May 05, 2010 - Clearwire Corporation (NASDAQ:CLWR), Comcast (NASDAQ:CMCSA) (NASDAQ:CMCSK) and Sprint (NYSE:S) today announced plans to launch their respective 4G mobile Internet services to additional cities in the summer of 2010. Each of the companies will offer 4G under their own 4G brand.

The companies plan to launch 4G mobile broadband services this summer in the following cities: Jacksonville and Daytona, FL; Kansas City, KS; Nashville, TN; St. Louis, MO; Salt Lake City, UT; Merced, Modesto, Stockton, and Visalia, CA; Wilmington, DE; Grand Rapids, MI; Eugene, OR; and Yakima and Tri-Cities, WA. Consumers and businesses should expect to see additional network expansions throughout these cities, and a wide-range of independent marketing and advertising initiatives.

The 4G customer experience from Clearwire, Comcast and Sprint is unlike any other wireless service available today from any national carrier. Customers in these cities will now be able to increase their mobility and productivity in many ways: from instantly downloading large files to get work done on the run, browsing the Web just like at home from across the city, or watching online videos and movies while travelling in the family car around town.

Clearwire, Comcast and Sprint 4G customers can expect to see wireless service significantly faster than today's 3G. Clearwire and Sprint customers will also be able to purchase a wide range of 4G devices, including compact USB modems and other wireless devices all aimed at making lives in these 4G cities more mobile and efficient.

CLEAR(R)

Clearwire's 4G service is branded CLEAR. CLEAR offers super fast mobile Internet service that works as fast on the go as it does at home. Customers will be able to purchase service online at www.clear.com, at CLEAR retail stores, from national retailers and local authorized dealers. For more information about pricing, services, devices, and local retail locations, visit www.clear.com.

Comcast High-Speed 2go

Comcast's 4G service, branded Comcast High-Speed 2go, is sold as part of a Fast Pack that bundles the nation's fastest in-home wired Internet with the nation's fastest wireless Internet. For more information, visit www.comcast.com/highspeed2go.

Sprint 4G

Sprint's 4G service is branded Sprint 4G. Sprint 3G/4G dual mode products available today combine the dependable nationwide Sprint 3G network with the turbo-charged wireless connectivity of Sprint 4G. With Sprint 4G, streaming video, fast file downloads and uploads and turbo-charged Web browsing are no longer just home, office or coffee shop benefits. Sprint 4G plans are available from Sprint retail stores, Best Buy stores, and local retailers in 4G service areas as well as Sprint telesales at 1-800-Sprint-1 or online at www.sprint.com/4G.

Current 4G Markets

4G mobile broadband service is available today in 32 markets covering 41 million people. Services are offered by Clearwire and Sprint in each market as well as Comcast in select markets. By the end of 2010, Clearwire's 4G mobile broadband network is expected to be available to up to 120 million people across the United States.

Clearwire and Sprint also announced today in separate releases the coming launch of service in additional cities across the United States.

About Clearwire

Clearwire Corporation (NASDAQ:CLWR), through its operating subsidiaries, is a leading provider of mobile broadband services. Clearwire's 4G network is currently available in areas of the U.S. where 41 million people live and the company plans to continue to expand its 4G coverage. Clearwire's open all-IP network, combined with significant spectrum holdings, provides an unprecedented combination of speed and mobility to deliver next generation broadband access. The company markets its service through its own brand called CLEAR(R) as well as through its wholesale relationships with Sprint, Comcast and Time Warner Cable. Strategic investors include Intel Capital, Comcast, Sprint, Google, Time Warner Cable, and Bright House Networks. Clearwire is headquartered in Kirkland, Wash.; additional information is available at http://www.clearwire.com.

About Sprint Nextel

Sprint Nextel offers a comprehensive range of wireless and wireline communications services bringing the freedom of mobility to consumers, businesses and government users. Sprint Nextel served more than 48 million customers at the end of the first quarter of 2010 and is widely recognized for developing, engineering and deploying innovative technologies, and the first and only wireless 4G service from a national carrier in the United States; offering industry-leading mobile data services, leading prepaid brands including Virgin Mobile USA, Boost Mobile and Assurance Wireless and instant national and international push-to-talk capabilities; and a global Tier 1 Internet backbone. With its customer-focused strategy, you can learn more and visit Sprint at www.sprint.com or www.facebook.com/sprint and www.twitter.com/sprint.

About Comcast Corporation

Comcast Corporation (Nasdaq: CMCSA, CMCSK) (www.comcast.com) is one of the nation's leading providers of entertainment, information and communication products and services. With 23.5 million cable customers, 16.3 million high-speed Internet customers, and 7.9 million Comcast Digital Voice customers, Comcast is principally involved in the development, management and operation of cable systems and in the delivery of programming content.

Comcast's content networks and investments include E! Entertainment Television, Style Network, Golf Channel, VERSUS, G4, PBS KIDS Sprout, TV One, 11 regional sports networks operated by Comcast Sports Group and Comcast Interactive Media, which develops and operates Comcast's Internet businesses, including Comcast.net (www.comcast.net). Comcast also has a majority ownership in Comcast-Spectacor, which owns two professional sports teams, the Philadelphia 76ers NBA basketball team and the Philadelphia Flyers NHL hockey team, and a large, multipurpose arena in Philadelphia, the Wachovia Center, and manages other facilities for sporting events, concerts and other events.