Breakup of the Bell System and North American Numbering Plan

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Difference between Breakup of the Bell System and North American Numbering Plan

Breakup of the Bell System vs. North American Numbering Plan

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 that had provided local telephone service in the United States and Canada up until that point. The North American Numbering Plan (NANP) is a telephone numbering plan that encompasses 25 distinct regions in twenty countries primarily in North America, including the Caribbean and the U.S. territories.

AT&T

AT&T Inc. is an American multinational conglomerate holding company headquartered at Whitacre Tower in Downtown Dallas, Texas.

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AT&T Corporation

AT&T Corp., originally the American Telephone and Telegraph Company, is the subsidiary of AT&T that provides voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies.

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AT&T Mobility

AT&T Mobility LLC, also known as AT&T Wireless marketed as simply AT&T, is a wholly owned subsidiary of AT&T that provides wireless services to 138.8 million subscribers in the United States including Puerto Rico and the U.S. Virgin Islands.

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Atlanta

Atlanta is the capital city and most populous municipality of the state of Georgia in the United States.

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Bell System

The Bell System was the system of companies, led by the Bell Telephone Company and later by AT&T, which provided telephone services to much of the United States and Canada from 1877 to 1984, at various times as a monopoly.

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BellSouth

BellSouth, LLC (stylized as BELLSOUTH and formerly known as BellSouth Corporation) is an American telecommunications holding company based in Atlanta, Georgia.

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Long-distance calling

In telecommunications, a long-distance call or trunk call is a telephone call made to a location outside a defined local calling area.

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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.

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Sprint Corporation

Sprint Corporation is an American telecommunications company that provides wireless services and is an internet service provider.

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Verizon Communications

Verizon Communications Inc., or simply Verizon, is an American multinational telecommunications conglomerate and a corporate component of the Dow Jones Industrial Average.

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Voice over IP

Voice over Internet Protocol (also voice over IP, VoIP or IP telephony) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet.

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