AT&T is a telecommunications and networking provider that operates in 60 countries and 850 cities worldwide. The company is divided into AT&T Business Services and AT&T Consumer Services.
In 2005 SBC bought AT&T Corp., creating the largest telecommunications company in the U.S. Then SBC took on the name AT&T. In 2006 AT&T purchased BellSouth for $86 billion in the largest telecommunications takeover in U.S. history. AT&T now services more than 68 million phone lines. Cingular Wireless changed into AT&T Mobility which is under AT&T and is the country's largest wireless carrier.
Services delivered include long distance, international, toll-free and local voice, including wholesale transport services, as well as data services and Internet protocol services, dial-up Internet services, management of network servers and applications, prepaid cards and operator-assisted calls.