AT&T Inc. is the largest provider of both local and long distance telephone services in the United States, and also serves digital subscriber line Internet access. AT&T is the second largest provider of wireless service in the United States, with over 77 million wireless customers, and more than... 

Formed in 1983 as Southwestern Bell Corporation, the companny AT&T Inc., is the largest provider of both local and long distance telephone services in the United States, and also serves digital subscriber line Internet access. It is claimed that the company has over 77 million wireless customers,...