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Ameritech
AT&T Teleholdings, Inc., formerly known as Ameritech Corporation (and before that American Information Technologies 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. Overview Ameritech was created as a holding company that owned five former Bell System companies in the Midwest. Under its umbrella were: * Illinois Bell Telephone Company * Indiana Bell Telephone Company, Inc. * Michigan Bell Telephone Company * Ohio Bell Telephone Company * Wisconsin Bell, Inc. For Ameritech's first nine years, it maintained these Bell brands inherited from the Bell System—though public displays of the Bell companies' names were often captioned "An Ameritech Company". In January 1993, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ameritech 1984 Logo
AT&T Teleholdings, Inc., formerly known as Ameritech Corporation (and before that American Information Technologies 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. Overview Ameritech was created as a holding company that owned five former Bell System companies in the Midwest. Under its umbrella were: * Illinois Bell Telephone Company * Indiana Bell Telephone Company, Inc. * Michigan Bell Telephone Company * Ohio Bell Telephone Company * Wisconsin Bell, Inc. For Ameritech's first nine years, it maintained these Bell brands inherited from the Bell System—though public displays of the Bell companies' names were often captioned "An Ameritech Company". In January 1993, A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ameritech Mobile Communications
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. Before the SBC Merger Ameritech sold some of its interests to GTE dba Verizon. Following the SBC Communications merger, Ameritech's wireless network was integrated and added to SBC's Wireless network. Originally Ameritech used CDMA as its network technology choice, but then converted to TDMA to be compatible with SBC's other wireless networks that were mostly using TDMA. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ameritech Cellular
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. Before the SBC Merger Ameritech sold some of its interests to GTE dba Verizon. Following the SBC Communications merger, Ameritech's wireless network was integrated and added to SBC's Wireless network. Originally Ameritech used CDMA as its network technology choice, but then converted to TDMA to be compatible with SBC's other wireless networks that were mostly using TDMA. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wisconsin Bell
Wisconsin Bell, Inc. (known as Wisconsin Telephone Co. before 1984) is the name of the Bell Operating Company serving Wisconsin. It is owned by AT&T through AT&T Teleholdings, originally known as Ameritech. Their headquarters is at 722 North Broadway, Milwaukee, WI. After the 1984 Bell System Divestiture, Wisconsin Bell became a part of Ameritech, one of the 7 original Bell Regional Holding Companies. In 1985, Wisconsin Bell began to purchase digital switching equipment from Siemens for its 1.6 million customers. In 1989, the change had been completed, and it became the first Ameritech company to use solely electronic switching equipment. The Wisconsin Bell name continued to be used until September 1993 when Ameritech dropped all of their individual Bell Operating Company names in favor of using their corporate name for marketing purposes. Wisconsin Bell started doing business as Ameritech Wisconsin. In 1998, Ameritech sold 19 Wisconsin Bell exchanges, primarily located in cent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Americast
Americast (stylized americast) was a cable alternative broadcast joint venture of five telephone companies: SBC, BellSouth Corporation, Ameritech Corporation, GTE Corporation (later part of Verizon by 2000) and SNET. The Walt Disney Company's Disney Televenture subsidiary was a programming partner. No standard delivery technologies was chosen for Americast with cable, direct-broadcast satellite and microwave as options for partner companies to use. History Americast was founded in early 1996 by SBC, BellSouth, Ameritech and GTE. Southern New England Telecommunications later joined Americast in June 1996. In August 1996, Americast made an order with Zenith Electronics for $1 billion worth of digital set-top boxes. In July 1997, the company eliminated its programming and marketing departments outsourcing to Disney Televenture. By this time, Ameritech had built Americast systems in 29 locations. By 2000, the Americast system was considered to be too costly to run. Ameritech ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illinois Bell
Illinois Bell Telephone Company, LLC is the Bell Operating Company serving Illinois. It is owned by AT&T through AT&T Teleholdings, formerly Ameritech. Their headquarters are at 225 West Randolph St., Chicago, IL. After the 1984 Bell System Divestiture, Illinois Bell became a part of Ameritech, one of the 7 original Regional Bell Operating Companies. The Illinois Bell name continued to be used until January 1993, when Ameritech dropped all of their individual Bell Operating Company names in favor of using their corporate name, Ameritech, for marketing purposes. Illinois Bell started doing business as Ameritech Illinois. Illinois Bell, in 1971, became the first ever telephone company to offer Call waiting, Three-way calling, Speed Calling, and Call forwarding, all popular local exchange carrier telephone service options to this day. In 1997, Illinois Bell acquired lines in the Chicago metro area from Central Telephone Company of Illinois, a Sprint company. In 1998, Ameritech ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohio Bell
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. Its headquarters is the Ohio Bell Building at 750 Huron Road, Cleveland, Ohio, and formerly had a secondary headquarters at 150 East Gay Street, Columbus, Ohio, now the Continental Center. Ohio Bell is not affiliated with Cincinnati Bell, which serves Cincinnati, Ohio and other surrounding communities. After the 1984 Bell System Divestiture, Ohio Bell became a subsidiary of Ameritech, one of the seven original Regional Bell Operating Companies The Regional Bell Operating Companies (RBOC) are the result of '' United States v. AT&T'', the U.S. Department of Justice antitrust suit against the former American Telephone & Telegraph Company (later known as AT&T Corp.). On January 8, 1 .... The Ohio Bell name continued to be used until January 1993, when Ameritech dropped all of its individua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michigan Bell
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. Michigan Bell was one of the 22 Local Exchange Carriers that were part of the original AT&T Bell System until the 1984 divestiture, after which Michigan Bell and four other Midwestern telephone companies became part of Ameritech, the midwestern Regional Holding Company The Regional Bell Operating Companies (RBOC) are the result of '' United States v. AT&T'', the U.S. Department of Justice antitrust suit against the former American Telephone & Telegraph Company (later known as AT&T Corp.). On January 8, 1 .... Ameritech was one of the seven original Bell Regional Holding Companies, or "Baby Bells". By the early 1990s, Amerite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AT&T Divestiture
The breakup of the Bell System was mandated on January 8, 1982, by an agreed 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. This divestiture was initiated by the filing in 1974 by the United States Department of Justice of an antitrust lawsuit against AT&T. AT&T was, at the time, the sole provider of telephone service throughout most of the United States. Furthermore, most telephonic eq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AT&T
AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's largest telecommunications company by revenue and the third largest provider of mobile telephone services in the U.S. , AT&T was ranked 13th on the ''Fortune'' 500 rankings of the largest United States corporations, with revenues of $168.8 billion. During most of the 20th century, AT&T had a monopoly on phone service in the United States. The company began its history as the American District Telegraph Company, formed in St. Louis in 1878. After expanding services to Arkansas, Kansas, Oklahoma and Texas, through a series of mergers, it became Southwestern Bell Telephone Company in 1920, which was then a subsidiary of American Telephone and Telegraph Company. The latter was a successor of the original Bell Telephone Company founded by Alexander Graham Bell in 1877. The American Bell Telephone Company formed the American Teleph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SBC Communications
The history of AT&T dates back to the invention of the telephone. The Bell Telephone Company was established in 1877 by Alexander Graham Bell, who obtained the first US patent for the telephone, and his father-in-law, Gardiner Greene Hubbard. Bell and Hubbard also established AT&T Corporation, American Telephone and Telegraph Company in 1885, which acquired the Bell Telephone Company and became the primary telephone company in the United States. This company maintained an effective monopoly on local telephone service in the United States until anti-trust regulators agreed to allow AT&T to retain Western Electric and enter general trades computer manufacture and sales in return for its offer to Breakup of the Bell System, split the Bell System by divesting itself of ownership of the Bell Operating Companies in 1982. AT&T Corporation was eventually purchased by one of the Regional Bell Operating Companies, the former Southwestern Bell Company, in 2005, and the combined company became ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regional Bell Operating Company
The Regional Bell Operating Companies (RBOC) are the result of ''United States v. AT&T'', the U.S. Department of Justice antitrust suit against the former American Telephone & Telegraph Company (later known as AT&T Corp.). On January 8, 1982, AT&T Corp. settled the suit and agreed to divest its local exchange service operating companies. Effective January 1, 1984, AT&T Corp.'s local operations were split into seven independent Regional Bell Operating Companies known as the Baby Bells. RBOCs were originally known as Regional Holding Companies (RHCs). Currently, three companies have the RBOCs as predecessors: AT&T, Verizon, and Lumen Technologies. Some other companies are holding onto smaller segments of the companies. Baby Bells A baby bell is local telephone company in the United States that was in existence at the time of the breakup of AT&T into the resulting Regional Bell Operating Companies (RBOCs), also known as the "Baby Bells." Sometimes also referred to as an "ILEC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
