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.
MCI Communications Corporation was a telecommunications company headquartered in Washington, D.C. that was at one point the second-largest long-distance provider in the United States.
Bell Canada is a Canadian telecommunications company headquartered at 1 Carrefour Alexander-Graham-Bell in the borough of Verdun in Montreal, Quebec, 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.
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.
Cable & Wireless plc was a British telecommunications company. In the mid-1980s, it became the first company in the UK to offer an alternative telephone service to British Telecom. The company later offered cable TV to its customers, but it sold its cable assets to NTL in 2000. It remained a significant player in the UK telecoms market and in certain overseas markets, especially in the former British colonies of the Caribbean, where it was formerly the monopoly incumbent. It was also the main supplier of communication in the British South Atlantic, including Saint Helena and the Falkland Islands. It was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index.
GCI Communication Corp (GCI) is a telecommunications corporation operating in Alaska. Through its own facilities and agreements with other providers, GCI provides cable television service, Internet access, wireline (networking), and cellular telephone service. It is a subsidiary of Colorado-based company Liberty Broadband, a company affiliated with Liberty Media that also owns a 26% interest in Charter Communications, having been originally acquired by Liberty in 2015.
Northwestel Inc. is a Canadian telecommunications company that is the incumbent local exchange carrier (ILEC) and long-distance carrier in the territories of Yukon, the Northwest Territories, and Nunavut. Originally established in 1979 by the Canadian National Railway from CN's northern telecommunications assets, it has been owned by BCE Inc. since 1988.
PLDT, Inc., formerly known as the Philippine Long Distance Telephone Company, is a Philippine telecommunications, internet and digital service company.
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.
Alaska Communications is a telecommunications corporation headquartered in Anchorage, Alaska. It was the first telecommunications provider in the state of Alaska to maintain a third-generation wireless network and the only provider in Alaska that owned fully incorporated infrastructure for the major telecommunications platforms; wireless communications, Internet networking, and local and long-distance phone service. Alaska Communications wireline operations include advanced data networks and an underwater fiber optic system. The Alaska Communications wireless operations included a statewide 3G CDMA network, and coverage extended from the North Slope to Southeast Alaska.
The White Alice Communications System was a United States Air Force telecommunication network with 80 radio stations constructed in Alaska during the Cold War. It used tropospheric scatter for over-the-horizon links and microwave relay for shorter line-of-sight links. Sites were characterized by large parabolic, tropospheric scatter antennas as well as smaller microwave dishes for point-to-point links.
Telecommunications engineering is a subfield of electronics engineering which seeks to design and devise systems of communication at a distance. The work ranges from basic circuit design to strategic mass developments. A telecommunication engineer is responsible for designing and overseeing the installation of telecommunications equipment and facilities, such as complex electronic switching systems, and other plain old telephone service facilities, optical fiber cabling, IP networks, and microwave transmission systems. Telecommunications engineering also overlaps with broadcast engineering.
Comcast MO Group, Inc. was created by US WEST Inc, one of the original Baby Bells Regional Bell Operating Companies, acquisition of Boston-based Continental Cable and combined with its previously acquired Atlanta-based Wometco/GTC. Wometco/GTC adopted the MediaOne name a year earlier. Media One Group was acquired in 2000 by AT&T Broadband, which was subsequently acquired by Comcast in 2002.
AT&T refers to several related companies providing telecommunications services:
The Alaska Communications System (ACS), also known as the Washington-Alaska Military Cable and Telegraph System (WAMCATS), was a system of cables and telegraph lines authorized by the U.S. Congress in 1900 and constructed by the U.S. Army Signal Corps. The communications lines were to serve both military and civilian needs in the territory of Alaska. By 1904, ACS comprised some 2,100 miles (3,400 km) of undersea cable, over 1,400 miles (2,300 km) of land lines, and a wireless segment across at least 107 miles (172 km). On May 15, 1936 WAMCATS was renamed the U.S. Army Alaska Communications System. The Alaska Communications System remained under the control of the Army Signal Corps until 1962 when it was taken over by the U.S. Air Force. The ACS handled the radioteletype, radio telephone, 500 kHz ship-to-shore frequencies, collected communications intelligence, and other services for more than half a century in Alaska.
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 is the subsidiary of AT&T Inc. that provides voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies.
Pacific Telecom, Inc., originally Telephone Utilities, Inc. and now CenturyTel of the Northwest, Inc., was an independent telephone company that owned over 600,000 telephone lines in 12 states prior to its acquisition by CenturyTel.
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 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 split the Bell System by divesting itself of ownership of the Bell Operating Companies in 1982.
AT&T Communications, Inc., was a division of the AT&T Corporation that, through 23 subsidiaries, provided interexchange carrier and long-distance telephone services.
