ATu0026T

ATu0026T Inc. is an American multinational telecommunications corporation, headquartered at Whitacre Tower in downtown Dallas, Texas. ATu0026T is the second largest provider of mobile telephone and the largest provider of fixed telephone in the United States, and also provides broadband subscription television services. ATu0026T is the third-largest company in Texas (the largest non-oil company, behind only ExxonMobil and ConocoPhillips, and also the largest Dallas company). , ATu0026T is the 23rd-largest company in the world as measured by a composite of revenues, profits, assets and market value, and the 16th-largest non-oil company. , it is also the 20th-largest mobile telecom operator in the world, with over 120.6 million mobile customers. The current iteration of ATu0026T Inc. began its existence as Southwestern Bell Corporation, one of seven Regional Bell Operating Companies (RBOC’s) created in 1983 in the divestiture of parent company American Telephone and Telegraph Company (founded 1885, later ATu0026T Corp.) due to the 1982 United States v. ATu0026T antitrust lawsuit. Southwestern Bell changed its name to SBC Communications Inc. in 1995. In 2005, SBC purchased former parent ATu0026T Corp. and took on its branding, with the merged entity naming itself ATu0026T Inc. and using the iconic ATu0026T Corp. logo and stock-trading symbol. The current ATu0026T reconstitutes much of the former Bell System and includes ten of the original 22 Bell Operating Companies, along with the original long distance division.