| XO Holdings, Inc., through its subsidiaries, operates operates through two divisions - Wireline and Wireless. 
 The Wireline division provides an array of wireline voice and data telecommunications services, including local and long distance voice, Internet access, and private data networking services, as well as hosting services, including Web hosting and server collocation. This segment offers these services through a national telecommunications network of fiber optic lines connecting 953 incumbent local exchange carrier end-office collocations in 37 U.S. cities.
 
 The Wireless division owns Federal Communications Commission licenses to deliver telecommunications services through local, multipoint distribution service, and wireless spectrum in approximately 70 U.S. cities. It primarily designs and deploys wireless communications networks, as well as delivers wireless T-1s, used to provide broadband connections to telecommunications end-users and is capable of delivering voice, data, and bundled telecommunications services; wireless Internet access product that offers customers and carriers a wireless solution for converting to an IP-based communications environment; and wireless Ethernet services, including gigabit Ethernet and intercity Ethernet services.
 
 The company also offers broadband wireless services to mobile and wireline communications service providers, businesses, and government agencies.
 
 XO Holdings was founded in 1994 and is headquartered in Reston, Virginia.  Icahn Carl is the largest shareholder (82%).
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