Location Services API, Mobile Location Based Service, Location Based Services Company

One of the largest wireless voice and data carriers in the US by subscribers, AT&T Mobility accounts for more than one-third of parent company AT&T's business, provides a full range of wireless voice, messaging, and data services to consumer and enterprise customers via its network. AT&T Mobility's services for businesses, government agencies, and educational institutions include email, wireless Internet access, and private wireless networking. AT&T Mobility provides extensive international network coverage for its subscribers in about 190 countries.

Rogers Wireless is Canada's top mobile phone outfit with millions of subscribers located across the country; services are sold under the Rogers Wireless and Fido brands. As the nation's #1 cable TV operator, Rogers Communications also serves some 2.3 million viewers throughout eastern Canada through subsidiary Rogers Cable. Its cable unit also oversees the company's Internet and nationwide traditional and computer telephony services. Rogers Media oversees broadcasting and publishing operations and it holds the company's stake in Blue Jays Holdco, with interests in the Toronto Blue Jays major league baseball team and Rogers Centre sports complex.

Sprint Nextel is one of the largest wireless carriers in the United States, serving customers with mobile voice, data, and Web services over its nationwide network. While the namesake brand is reserved for postpaid accounts, the company also offers prepaid mobile access (mainly to the youth market) through its Boost Mobile subsidiary. Sprint Nextel also provides cellular access to other carriers on a wholesale basis. The company's smaller legacy wireline business provides long-distance voice, Internet, and data network services primarily to corporate customers and other carriers.

One of Canada's top telecom service providers, the company is the incumbent local-exchange carrier in British Columbia, Alberta, and eastern Quebec. TELUS provides wireline voice services and Internet access to millions of subscribers. The company's wireless unit provides voice, data, and mobile Internet services. Through its TELUS TV unit, it offers high-definition TV, video-on-demand and pay-per-view television, and personal video recorder (PVR) services. TELUS also provides businesses with consulting, network management, and other IT services.

Verizon Wireless operates the nation’s most reliable and largest wireless voice and 3G data network, serving nearly 93 million customers. Headquartered in Basking Ridge, N.J., with 81,000 employees nationwide, Verizon Wireless is a joint venture of Verizon Communications (NYSE, NASDAQ: VZ) and Vodafone (LSE, NASDAQ: VOD). For more information, visit www.verizonwireless.com.

T-Mobile USA is a national provider of wireless voice, messaging, and data services capable of reaching over 293 million Americans where they live, work, and play. For more information, visit http://www.t-mobile.com/.