NationMaster - Encyclopedia: Advanced Mobile Phone Service

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 remains in operation until 2008. AT&T (Bell System) logo, 1969-1983 This is a copyrighted and/or trademarked logo. ... 1978 (MCMLXXVIII) was a common year starting on Sunday. ... Advanced Mobile Phone System (AMPS) is the analog mobile phone system standard developed by Bell Labs, and officially introduced in the Americas in 1984. ... A holding company is a company that owns enough voting stock in another firm to control management and operations by influencing or electing its board of directors. ... This article describes the former AT&T Corp. ... A website (or Web site) is a collection of web pages, images, videos and other digital assets and hosted on a particular domain or subdomain on the World Wide Web. ... AT&T (formerly an abbreviation for American Telephone and Telegraph) Corporation (NYSE: T) is an American telecommunications company. ... The break up of AT&T was initiated in 1974 by the U.S. Department of Justice anti-trust suit against the telephone monopoly. ... 1978 (MCMLXXVIII) was a common year starting on Sunday. ... Advanced Mobile Phone System (AMPS) is the analog mobile phone system standard developed by Bell Labs, and officially introduced in the Americas in 1984. ... Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) was the main research and development arm of the United States Bell System. ... It has been suggested that this article or section be merged with Two-way radio. ... The Improved Mobile Telephone Service (IMTS) is a pre-cellular VHF/UHF radio system that links to the PSTN. IMTS was the radiotelephone equivalent of land dial phone service. ... 2008 (MMVIII) will be a leap year starting on Tuesday of the Gregorian calendar. ...

Service started in Chicago on October 13, 1983 and in the Washington, DC area December 1983. After divestiture, AMPS was divided among the 7 newly created Regional Holding Companies, now known as RBOCs: Nickname: The Windy City, The Second City, Chi Town, City of the Big Shoulders, The 312, The City that Works, Second City (reference to when Chicago was second in population and prestige to New York). ... 1983 (MCMLXXXIII) was a common year starting on Saturday of the Gregorian calendar. ... Aerial photo (looking NW) of the Washington Monument and the White House in Washington, DC. Washington, D.C., officially the District of Columbia (also known as D.C.; Washington; the Nations Capital; the District; and, historically, the Federal City) is the capital city and administrative district of the United... The Regional Bell operating companies (RBOC) are the result of the United States antitrust action against AT&T in 1983. ...

Verizon Wireless owns and operates the second-largest wireless telecommunications network in the United States, based on total wireless customers. ... Verizon Wireless owns and operates the second-largest wireless telecommunications network in the United States, based on total wireless customers. ... First cellular company to provide modern mobile phone service for the general public in Chicago on October 13, 1983 Originally named Ameritech Mobile Communications, then later became Ameritech Cellular. ... Cingular Wireless is the largest United States mobile phone company, with headquarters in Atlanta, Georgia, United States. ... AirTouch Communications was a U.S.-based wireless service provider that was created when PacTel Cellular was spun off from Pacific Telesis on April 1, 1994, forming both AirTouch Cellular and AirTouch Paging. ... Cingular Wireless is the largest United States mobile phone company, with headquarters in Atlanta, Georgia, United States. ... AirTouch Communications was a U.S.-based wireless service provider that was created when PacTel Cellular was spun off from Pacific Telesis on April 1, 1994, forming both AirTouch Cellular and AirTouch Paging. ...

Evolution of Successor Companies

Through a series of mergers, acquisitions, and re-consolidation among the Baby Bells, these 7 mobile operating companies are now split between Cingular Wireless (AT&T) and Verizon Wireless. There are some discrepancies not noted on the chart due to service areas being sold off during mergers, such as Ameritech Mobile Communication's Chicago area network is now Verizon Wireless.

AT&T Wireless redirects here. ... AT&T (NYSE: T) is the largest provider of both local and long distance telephone services, wireless service under the brand Cingular Wireless, and DSL Internet access in the United States. ... Verizon Wireless owns and operates the second-largest wireless telecommunications network in the United States, based on total wireless customers. ... Image File history File links Download high-resolution version (1141x240, 19 KB) Evolution of AT&Ts original cellular service operating company. ...

References

Categories: Mobile phone companies | Bell System The Bell System was a trademark and service mark used by the US telecommunications company American Telephone & Telegraph Company (AT&T) and its affiliated companies to co-brand their extensive circuit-switched telephone network and their affiliations with each other. ... AT&T (formerly an abbreviation for American Telephone and Telegraph) Corporation (NYSE: T) is an American telecommunications company. ... POTS may mean: Plain old telephone service (aka Public Switched Telephone Network (PSTN) or Post Office Telephone Service or Post Office Telephone System) Postural orthostatic tachycardia syndrome This article consisting of a 4-letter acronym or initialism is a disambiguation page â€” a list of pages that otherwise might share the... Bell System trademark used by AT&T and affiliated companies from 1921 to 1939 The Bell System was a trademark and service mark used by the US telecommunications company American Telephone & Telegraph Company (AT&T) and its affiliated companies to co-brand their extensive circuit-switched telephone network and their... Nevada Bell was the name of the Pacific Telesis telephone operations in Nevada. ... The Bell Telephone Company of Pennsylvania, or Bell of Pennsylvania, is the former name of the Bell Operating Company serving Pennsylvania. ... C&P Telephone was a d/b/a name for four of AT&Ts, and after January 1, 1984, Bell Atlantics Bell Operating Companies. ... C&P Telephone was a d/b/a name for four of AT&Ts, and after January 1, 1984, Bell Atlantics Bell Operating Companies. ... C&P Telephone was a d/b/a name for four of AT&Ts, and after January 1, 1984, Bell Atlantics Bell Operating Companies. ... C&P Telephone was a d/b/a name for four of AT&Ts, and after January 1, 1984, Bell Atlantics Bell Operating Companies. ... The Diamond State Telephone Company is the Bell Operating Company of Delaware. ... Illinois Bell is the name of the Bell Operating Company serving Illinois. ... Indiana Bell Telephone Company, Inc. ... Michigan Bell was one of the 22 Local Exchange Carriers that were part of the AT&T Bell System. ... Qwest Corporation is the single Bell Operating Company of Qwest Communications International, Inc. ... New England Telephone & Telegraph was the name of the Bell Operating Company serving Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont prior to 1994. ... New Jersey Bell is the former d/b/a name of the New Jersey Bell Telephone Company, a Bell Operating Company serving the U.S. state of New Jersey. ... The New York Telephone Company (NYTel) was organized in 1896, taking over the New York City operations of the American Bell Telephone Company. ... Qwest Corporation is the single Bell Operating Company of Qwest Communications International, Inc. ... The Ohio Bell Telephone Company is the Bell Operating Company serving most of Ohio. ... Qwest Corporation is the single Bell Operating Company of Qwest Communications International, Inc. ... Pacific Bell logo Pacific Bell was a telephone company which provided service in the state of California. ... South Central Bell is one of the two telephone companies that, after the 1984 AT&T divestiture, was held by the BellSouth Corp. ... BellSouth Corporation (NYSE: BLS) is a U.S. telecommunications company based in Atlanta, Georgia. ... For information on holding company Southwestern Bell Corporation, later SBC Communications, Inc. ... Wisconsin Bell is the name of the Bell Operating Company serving Wisconsin. ... The Southern New England Telephone Company (commonly referred to as SNET by its customers) started operations on January 27, 1878 as the District Telephone Company of New Haven. ... Cincinnati Bell is the dominant telephone company for Cincinnati, Ohio and its nearby suburbs in Ohio, Indiana and Kentucky. ... AT&T (formerly an abbreviation for American Telephone and Telegraph) Corporation (NYSE: T) is an American telecommunications company. ... Company Masthead Logo Logo until circa 1969, also current logo on company web site Logo 1969-1983 Western Electric (sometimes abbreviated WE and WECo) was an American electrical engineering company, the manufacturing arm of AT&T from 1881 to 1995. ... Research is often described as an active, diligent, and systematic process of inquiry aimed at discovering, interpreting, and revising facts. ... Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) was the main research and development arm of the United States Bell System. ... Long distance in telecommunications, refers to telephone calls made outside a certain area, usually characterized by an area code outside of a local call area. ... AT&T Communications, Inc. ...

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References

Evolution of Successor Companies