GTE Corporation, formerly General Telephone & Electronics Corporation (1955–1982), was the largest independent telephone company in the United States during the days of the Bell System. The company operated from 1926, with roots tracing further back than that, until 2000, when it was acquired by Bell Atlantic; the combined company took the name Verizon.
The Nippon Telegraph and Telephone Corporation (NTT) is a Japanese telecommunications holding company headquartered in Tokyo, Japan. Ranked 55th in Fortune Global 500, NTT is the fourth largest telecommunications company in the world in terms of revenue, as well as the third largest publicly traded company in Japan after Toyota and Sony, as of June 2022. In 2023, the company was ranked 56th in the Forbes Global 2000.
Bell Canada is a Canadian telecommunications company headquartered at 1 Carrefour Alexander-Graham-Bell in the borough of Verdun, Quebec, in Canada. It is an ILEC in the provinces of Ontario and Quebec; as such, it was a founding member of the Stentor Alliance. It is also a CLEC for enterprise customers in the western provinces.
BellSouth, LLC was an American telecommunications holding company based in Atlanta, Georgia. BellSouth was one of the seven original Regional Bell Operating Companies after the U.S. Department of Justice forced the American Telephone & Telegraph Company to divest itself of its regional telephone companies on January 1, 1984.
US West, Inc., doing business as U S West, was one of seven Regional Bell Operating Companies, created in 1983 under the Modification of Final Judgement, a case related to the antitrust breakup of AT&T. US West provided local telephone and intraLATA long-distance services, data transmission services, cable television services, wireless communications services and related telecommunications products to defined areas in Arizona, Colorado, Idaho, Iowa, Minnesota, Montana, Nebraska, New Mexico, North Dakota, Oregon, South Dakota, Utah, Washington, and Wyoming. US West was a public company traded on the New York Stock Exchange under the ticker symbol "USW" with headquarters at 1801 California Street in Denver, Colorado.
Cincinnati Bell, Inc., 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.
Southern Bell Telephone and Telegraph Company is the regional Bell Operating Company serving the Southeastern United States of Georgia, Florida, North Carolina, and South Carolina. However, the Southern Bell name isn't used anymore as of 1992 although the network still exists. It also covered the states of Alabama, Kentucky, Louisiana, Mississippi, and Tennessee until 1968 when those were split off to form South Central Bell.
Rochester Telephone Corporation was a company that provided local telephone service to Rochester, New York. The company was founded in 1920 as a merger of Rochester Telephonic Exchange and Rochester Telephone Company. In 1995 the company became Frontier Corporation, trading on the NYSE under the FRO symbol. Ownership passed to Global Crossing in 1999, and then, in 2001, to Citizens Utilities Corporation, which later changed its name to Frontier Communications.
The monopoly position of the Bell System in the U.S. was ended 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. 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.
Northwestern Bell Telephone Company is an American communications provider that serves the states of the upper Midwest opposite the Southwestern Bell area, including Iowa, Minnesota, South Dakota, North Dakota, and Nebraska. As of 1991 the name Northwestern Bell is no longer the corporate identity, although Northwestern Bell is now owned by the Lumen Technologies and is therefore doing business as Lumen. Doing business as names were not begun before 2001; that is why the Northwestern Bell name was dormant but later revived by CenturyLink.
The Pacific Northwest Bell Telephone Company is an AT&T majority-owned Bell System company that provides local telecommunications services in Oregon, Washington, and northern Idaho. Pacific Northwest Bell Telephone Company was formed on July 1, 1961 when it was spun off from the Pacific Telephone and Telegraph Company. On January 1, 1984, Pacific Northwest Bell was split from AT&T as ordered in the settlement of United States v. AT&T and became a subsidiary of the newly formed Regional Bell Operating Company US WEST, Inc. Pacific Northwest Bell became dormant when US WEST consolidated its three main subsidiaries, forming US WEST Communications, Inc. on January 1, 1991. US WEST merged with Qwest Communications International Inc. in 2000, and the US WEST brand was replaced by the Qwest brand. Qwest Communications merged with Louisiana-based CenturyLink in 2011, and the Qwest brand was replaced by the CenturyLink brand. As of January 1, 1991 the Pacific Northwest Bell name is not used for marketing anymore although the PNB provider still exists. The Pacific Northwest Bell identity was revived by and is now doing business as CenturyLink/LUMEN. The name was revived in the early 2010s.
The Bell Telephone Company was the initial corporate entity from which the Bell System originated to build a continental conglomerate and monopoly in telecommunication services in the United States and Canada.
Regions Financial Corporation is an American bank holding company headquartered in the Regions Center in Birmingham, Alabama. The company provides retail and commercial banking, trust, stock brokerage, and mortgage services. Its banking subsidiary, Regions Bank, operates about 2,000 automated teller machines and 1,300 branches in 15 states in the Southern and Midwestern United States.
BellSouth Telecommunications, LLC was an operating company of AT&T that served the southeastern United States. It consisted of the operations of Southern Bell and South Central Bell.
Qwest Corporation is a Regional Bell Operating Company owned by Lumen Technologies. It was formerly named U S WEST Communications, Inc. from 1991 to 2000. It was also named Mountain States Telephone and Telegraph Company–later Mountain Bell from 1911 to 1991. In the early 2010s the Mountain Bell name was resurrected by CenturyLink, Inc. In other words, Mountain Bell Telephone Company still exists but the MB corporate name is no longer used from 1991 and afterwards. Mountain Bell now does business as the Lumen Technologies. It includes the former operations of Malheur Bell, Northwestern Bell and Pacific Northwest Bell as well. The NWBT and PNB companies still exist but no longer use the names for marketing or as corporate identities.
Alexander Graham Bell honors and tributes include honors bestowed upon him and awards named for him.
The Bell System was a system of telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company (AT&T), that dominated the telephone services industry in North America for over 100 years from its creation in 1877 until its antitrust breakup in 1983. The system of companies was often colloquially called Ma Bell, as it held a vertical monopoly over telecommunication products and services in most areas of the United States and Canada. At the time of the breakup of the Bell System in the early 1980s, it had assets of $150 billion and employed over one million people.
AT&T Corporation, commonly referred to as AT&T, an abbreviation for its former name, the American Telephone and Telegraph Company, was an American telecommunications company that provided voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies.
Southwestern Bell Telephone Company, LLC is a wholly owned subsidiary of AT&T. It does business as other d.b.a. names in its operating region, which includes Arkansas, Kansas, Missouri, Oklahoma, Texas, and portions of Illinois. The company is currently headquartered in Dallas, Texas at One AT&T Plaza.
CenturyTel of Eagle, Inc. is one of the CenturyLink operating companies in Colorado. The company was formed in 1928 as The Eagle Valley Telephone Company and originally served Eagle, Rio Blanco, and Routt counties in Colorado.
