Ameritech

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Ameritech Telecommunications Holdings, Inc.

Trade name	Ameritech
Formerly	American Information Technologies Corporation Ameritech Corporation SBC Teleholdings, Inc.
Company type	Subsidiary
Traded as	NYSE: AIT
Industry	Telecommunications
Predecessor	American Telephone and Telegraph Company
Founded	1983; 42 years ago (1983)
Defunct	2002; 23 years ago (2002)
Fate	Merged with SBC Communications
Successor	SBC Communications Inc.
Headquarters	Chicago, Illinois , United States
Products	Telephone, Internet, Television
Parent	AT&T Corporation (1983) SBC/AT&T Inc. (1999–2002)
Subsidiaries	Illinois Bell Indiana Bell Michigan Bell Ohio Bell Pacific Bell Wisconsin Bell

AT&T Teleholdings, Inc., formerly known as Ameritech Corporation (and, before that, American Information Technologies Corporation), was an American telecommunications company that arose out of the 1984 AT&T divestiture. Ameritech was one of the seven Regional Bell Operating Companies created following the breakup of the Bell System. Ameritech was acquired in 1999 by SBC Communications, which subsequently acquired AT&T Corporation in 2006, becoming the present-day AT&T.