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.
A Regional Bell Operating Company (RBOC) was a corporate entity created as result of the antitrust lawsuit by the U.S. Department of Justice against the American Telephone and Telegraph Company (AT&T) in 1974 and settled in the Modification of Final Judgment on January 8, 1982.
Telus Communications Inc. (TCI) is the wholly owned principal subsidiary of Telus Corporation, a Canadian national telecommunications company that provides a wide range of telecommunications products and services including internet access, voice, entertainment, healthcare, video, smart home automation and IPTV television. The company is based in the Vancouver, British Columbia, area; it was originally based in Edmonton, Alberta, before its merger with BC Tel in 1999. Telus' wireless division, Telus Mobility, offers UMTS, and LTE-based mobile phone networks. Telus is the incumbent local exchange carrier in British Columbia and Alberta. Its primary competitors are Rogers Communications and Bell Canada. Telus is a member of the British Columbia Technology Industry Association.
Hawaiian Telcom, Inc., is the incumbent local exchange carrier (ILEC) or dominant local telephone company, serving the state of Hawaii. In 2005, Hawaiian Telcom Holdco, Inc., was formed by The Carlyle Group, following its purchase of the Hawaiian Telcom Inc. assets of Verizon Communications. On July 2, 2018, Cincinnati Bell purchased Hawaiian Telcom Holdco, Inc. for $650 Million,
Frontier Southwest Incorporated is a Frontier Communications operating company in Texas. At its peak, Frontier Southwest served Arkansas, Oklahoma, Texas, and New Mexico.
Verizon South, Inc. is a Verizon operating company providing local telephone services to portions of Virginia and North Carolina in the United States.
Frontier North, Inc. is a local telephone operating company owned by Frontier Communications.
Frontier California, Inc. is a Frontier Communications-owned operating company providing telephone service in former Verizon regions. This included Southern California cities such as Long Beach, Seal Beach, Lakewood, Norwalk and Santa Monica.
Frontier Midstates, Inc. is a telephone operating company of Frontier Communications serving Indiana and Michigan. It was originally owned by Contel, and later purchased by GTE, Verizon, and then sold to Frontier.
Frontier Communications Parent, Inc. is an American telecommunications company. Known as Citizens Utilities Company until 2000, Citizens Communications Company until 2008, and Frontier Communications Corporation until 2020, as a communications provider with a fiber-optic network and cloud-based services, Frontier offers broadband internet, digital television, and computer technical support to residential and business customers in 25 states. In some areas it also offers home phone services.
Electric Lightwave, was originally formed in 1988, by John Warta, John Rivenburgh, Earl Kamsky and Richard Furnival. The company was formed to compete with US West and GTE in the Pacific Northwest. Portland General Electric was an initial investor, then Citizens Utilities became the largest investor in 1990. ELI became the first company to compete locally in Oregon, Washington, Idaho, Utah, and one of the first in California and Arizona.
FairPoint Communications, Inc. was an American operator of communication services. FairPoint's services include local and long-distance phone service, data, Internet, broadband, television, business communications solutions and fiber services. Headquartered in Charlotte, North Carolina, it served 31 markets in 17 states, mostly in rural areas. FairPoint, along with Frontier Communications, had been at the forefront of acquiring Verizon landline operations.
Verizon Communications Inc., commonly known as Verizon, is an American multinational telecommunications conglomerate. The company is incorporated in Delaware, and headquartered at 1095 Avenue of the Americas in Midtown Manhattan, New York City. Verizon's capital stock is a component of the Dow Jones Industrial Average. It is the world's second-largest telecommunications company by revenue.
WaveDivision Holdings, LLC, doing business as Wave Broadband, is an American provider of residential, business, and enterprise class cable TV, broadband Internet, and telephone services to around 455,000 customers in Washington, Oregon, and California. Wave provides services via their own fiber-optic network and has approximately 1,300+ employees.
Lumen Technologies, Inc. is an American telecommunications company headquartered in Monroe, Louisiana, that offers communications, network services, security, cloud solutions, voice, and managed services. The company is a member of the Fortune 500 and part of the S&P 500 index since 1999.
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.
TDS Telecom is an American telecommunications company with headquarters in Madison, Wisconsin. It is a wholly owned subsidiary of Telephone and Data Systems Inc, and is the seventh-largest local exchange carrier in the U.S. TDS Telecom offers telephone, broadband Internet and television services to customers in 30 states and more than 900 rural and suburban communities, though it also serves some urban metropolitan communities. It also sells businesses communications services, including VoIP phone service, dedicated broadband Internet and hosted-managed services. With headquarters in Madison, TDS Telecom operates TDS Broadband LLC, and BendBroadband, and TDS Metrocom, LLC. Combined, the company employs nearly 3,300 people. In 2019, TDS Telecom and parent company TDS Inc. celebrated 50 years in business.
Frontier Fiber is a bundled Internet access, telephone, and television service that operates over a fiber-optic communications network. Service is offered in some areas of the United States by Frontier Communications in areas built out and formerly served by Verizon, using the same infrastructure as its Fios service. Other service providers often use fiber optics in the network backbone and existing copper or coax infrastructure for residential users. Frontier's service began in 2009 with the acquisition of portions of Verizon's network, and networked areas expanded through 2015 through similar acquisitions, although some areas do not have service or cannot receive TV and phone service because of franchise agreements.
