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Ameritech Interactive Media Services, Inc. was a subsidiary of AT&T [1] that provides AT&T Yahoo!-branded Internet services to AT&T customers in Illinois, Indiana, Michigan, Ohio, and Wisconsin.
AIMS was acquired by SBC Communications, now AT&T, in 1999 during its acquisition of Ameritech.
A Regional Bell Operating Company (RBOC) was a corporate entity created as result of the antitrust lawsuit by the U.S. Department of Justice against the American Telephone and Telegraph Company (AT&T) in 1974 and settled in the Modification of Final Judgment on January 8, 1982.
AT&T Teleholdings, Inc., formerly known as Ameritech Corporation, is an American telecommunications company that arose out of the 1984 AT&T divestiture. Ameritech was one of the seven Regional Bell Operating Companies that was 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.
Cincinnati Bell, doing business as Altafiber, is a regional telecommunications service provider based in Cincinnati, Ohio, United States. It provides landline telephone, fiber-optic Internet, and IPTV services through its subsidiaries Altafiber Home Phone and Hawaiian Telcom, which are the incumbent local exchange carriers for the Greater Cincinnati metropolitan area and Hawaii. Other subsidiaries provide enterprise information technology services and long distance calling.
The breakup of the Bell System was mandated on January 8, 1982, by a consent decree providing that AT&T Corporation would, as had been initially proposed by AT&T, relinquish control of the Bell Operating Companies, which had provided local telephone service in the United States. This effectively took the monopoly that was the Bell System and split it into entirely separate companies that would continue to provide telephone service. AT&T would continue to be a provider of long-distance service, while the now-independent Regional Bell Operating Companies (RBOCs), nicknamed the "Baby Bells", would provide local service, and would no longer be directly supplied with equipment from AT&T subsidiary Western Electric.
Ameritech Mobile Communications, LLC was the first company in the United States to provide cellular mobile phone service to the general public. Cell service became publicly available in Chicago on October 13, 1983. The company was a division of Ameritech which, as of January 1, 1984, was the holding company of Illinois Bell, Michigan Bell, Wisconsin Bell, Ohio Bell, and Indiana Bell, which provides landline service to the Great Lakes region. From around 1986, Cincinnati Bell held a 45% stake in the company. Originally named Ameritech Mobile Communications, it later became known as Ameritech Cellular.
Michigan Bell is the subsidiary of AT&T serving the state of Michigan. Following the Bell System divestiture on January 8, 1984, the company became a subsidiary of Ameritech, the Regional Bell operating company that served the midwestern United States. Ameritech was subsequently acquired by SBC Communications, which later changed its name to AT&T.
Illinois Bell Telephone Company, LLC is the Bell Operating Company serving Illinois. It is owned by AT&T through AT&T Teleholdings, formerly Ameritech.
The Ohio Bell Telephone Company, now doing business as AT&T Ohio, is the Bell Operating Company serving most of Ohio and parts of West Virginia. It is a wholly owned subsidiary of AT&T.
Indiana Bell Telephone Company, Incorporated, is the Bell Operating Company serving Indiana. It is an indirect subsidiary of AT&T Inc., owned by AT&T Teleholdings.
Wisconsin Bell, Inc. is the name of the Bell Operating Company serving Wisconsin. It is owned by AT&T through AT&T Teleholdings, originally known as Ameritech.
Advanced Mobile Phone Service, Inc. was a subsidiary of AT&T prior to the Bell System Divestiture. Abbreviated AMPS, the company was created in 1978 to build and operate the new Advanced Mobile Phone System, also abbreviated AMPS. AMPS was developed by Bell Labs to replace older, severely limited radiophone services, such as IMTS. AMPS was one of the first modern cellular phone systems, which remained in operation until 2008.
YP Midwest Publishing LLC., originally Ameritech Publishing, Inc., was formed in 1983 during the Bell System Divestiture. It combined the former directory operations of Illinois Bell, Indiana Bell, Michigan Bell, Ohio Bell and Wisconsin Telephone. Ameritech Publishing published telephone directories in Indiana, Ohio, Michigan, and Wisconsin. Directories in Illinois were made in a joint venture with R. H. Donnelley.
Richard C. Notebaert is the former Chairman and CEO of Qwest, Tellabs and Ameritech. He was credited for saving Qwest from bankruptcy, and making Ameritech the most successful "Baby Bell".
SBC Telecom, Inc. d/b/a AT&T Small Business is a CLEC owned by AT&T that offers local telephone service outside the AT&T Bell Operating Company regions. It was formed in 1999 following provisions that required SBC Communications to offer telephone service outside its boundaries in order to get approval to merge with Ameritech.
SirsiDynix is a United States company which produces integrated library system (ILS) software and associated services for libraries.
The Ameritech Cup is a defunct WTA Tour affiliated tennis tournament held every year from 1971 until 1997 in Chicago, Illinois in the United States. Its sponsors were Virginia Slims from 1971 to 1978 and again from 1983 to 1994, Avon from 1979 to 1982 and Ameritech from 1995 to 1997. The tournament was classified as Tier III in 1988-1989, Tier I in 1990 and Tier II until 1997, and was played on indoor carpet courts.
Gregory Q. Brown is an American businessman. He has been chairman and chief executive officer of Motorola Solutions since 2008.
AT&T Plaza is a public space that hosts the Cloud Gate sculpture. It is located in Millennium Park, which is a park built to celebrate the third millennium and which is located within the Loop community area of Chicago, Illinois in the United States. The sculpture and the plaza are sometimes jointly referred to as Cloud Gate on the AT&T Plaza.
Jeffery D. "Jeff" Black is an American chief executive officer and chief strategy officer associated with the information technology industry. He also is a programmer and inventor, holding six patents.
The Southern New England Telephone Company, doing business as Frontier Communications of Connecticut, is a local exchange carrier owned by Frontier Communications.
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