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; with the combined companies formed under the currently operating Verizon banner.
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.
The monopoly position of the Bell System in the U.S. was ended on January 8, 1982. AT&T Corporation proposed by in a consent decree to 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.
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,
Embarq Corporation was the largest independent local exchange carrier in the United States, serving customers in 18 states and providing local, long-distance, high-speed data and wireless services to residential and business customers. It had been formerly the local telephone division (LTD) of Sprint Nextel until 2006, when it was spun off as an independent company. Embarq produced more than $6 billion in revenues annually, and had approximately 18,000 employees. It was based in Overland Park, Kansas.
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.
Windstream Holdings, Inc., also doing business as Windstream Communications is a provider of voice and data network communications, and managed services, to businesses in the United States. The company also offers residential broadband, phone and digital streaming TV services to consumers within its coverage area. It is the ninth largest residential telephone provider in the country with service covering more than 8.1 million people in 21 states.
RCN Corporation, originally Residential Communications Network, founded in 1993 and based in Princeton, New Jersey, was the first American facilities-based ("overbuild") provider of bundled cable telephony, cable television, and internet service delivered over its own hybrid fiber-coaxial local network as well as dialup and DSL Internet service to consumers in the Boston, Chicago, Los Angeles, New York City, the Lehigh Valley in eastern Pennsylvania, and Washington, D.C. areas.
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., is an American telecommunications company headquartered in New York City. It is the world's second-largest telecommunications company by revenue and its mobile network is the largest wireless carrier in the United States, with 114.2 million subscribers as of September 30, 2024.
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, which offers communications, network services, security, cloud solutions, voice and managed services through its fiber optic and copper networks, as well as its data centers and cloud computing services. The company has been included in the S&P 600 index since being removed from the S&P 500 in March 2023.
Frontier Fiber is a bundled Internet access, telephone, and television service provided by Frontier Communications that operates over a fiber-optic network within the United States.
