Clearwire Corporation (Clearwire) is a provider of fourth generation (4G) wireless broadband services. The Company builds and operates next generation mobile broadband networks, which provide high-speed mobile Internet and residential Internet access services in communities throughout the country. Its 4G mobile broadband network operates on the Worldwide Interoperability of Microwave Access technology 802.16e standard, which it refers to as mobile WiMAX. Its 4G mobile broadband markets include major metropolitan areas such as Atlanta, Baltimore, Boston, Chicago, Cincinnati, Cleveland, Columbus, Dallas, Honolulu, Houston, Kansas City, Las Vegas, Los Angeles, Miami, New York, Philadelphia, Pittsburgh, Orlando, Salt Lake City, San Antonio, San Francisco, Seattle, St. Louis and Washington D.C. The Company�s 4G mobile broadband markets in the United States are offered through retail channels and through its wholesale partners. Sprint Nextel Corporation is the parent company of Clearwire.