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.
Northwest Fiber, LLC, doing business as Ziply Fiber, is an American telecommunications company based in Kirkland, Washington. Ziply is a subsidiary of WaveDivision Capital, a private investment company, which is also Kirkland-based. The company started operations on May 1, 2020, when it completed its acquisition of Frontier Communications Northwest operations and assets for $1.4 billion; Frontier sold its Northwest operations after filing for bankruptcy protection in April 2020. Ziply Fiber's footprint covers the Pacific Northwest region, specifically the states of Washington, Oregon, Idaho and Montana. Its key offerings include fiber internet and phone for residential customers, Business Fiber Internet, and Ziply Voice services for small businesses; and a variety of internet, networking and voice solutions for enterprise customers. The company will also continue to support DSL and grandfathered TV customers. Ziply has stated that it plans on investing $500 million to improve its network and service throughout its footprint. This includes the goal of bringing fiber to nearly 85% of its network, which mainly encompasses rural communities. As of June 2020, approximately 30% have access to fiber.
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.
Qwest Corporation is a former Regional Bell Operating Company owned by Lumen Technologies. It was formerly named U S WEST Communications, Inc. from 1991 to 2000, and also formerly named Mountain States Telephone and Telegraph Company from 1911 to 1991. It includes the former operations of Malheur Bell, Northwestern Bell and Pacific Northwest Bell as well.
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.
SNET America, Inc. is a long-distance telephone company owned by Frontier Communications that serves Connecticut with customers in other states. It competes to provide long-distance service for SNET customers. SNET America was formed by Southern New England Telecommunications Corp. in 1993 to compete with other long-distance carriers within Connecticut. SNET America does business as Frontier Communications. It is not affiliated with Frontier Communications Online and Long Distance or Citizens Communications of America, the other core long-distance units of Frontier.
Frontier Telephone of Rochester, Inc., formerly Rochester Telephone Corporation, is a local telephone operating company of Frontier Communications providing telephone service to Rochester, NY. The company was founded in 1994.
Qwest Communications International, Inc. was a United States telecommunications carrier. Qwest provided local service in 14 western and midwestern U.S. states: Arizona, Colorado, Idaho, Iowa, Minnesota, Montana, Nebraska, New Mexico, North Dakota, Oregon, South Dakota, Texas, Utah, Washington, and Wyoming.
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.
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 was a member of the Fortune 500 and the S&P 500 index from 1999 until 2023. Its communications services include local and long-distance voice, broadband, Multi-Protocol Label Switching (MPLS), private line, Ethernet, hosting, data integration, video, network, public access, Voice over Internet Protocol (VoIP), information technology, and other ancillary services. Lumen also serves global enterprise customers across North America, Latin America, EMEA, and Asia Pacific.
Frontier West Virginia, Inc. is one of the original Bell Operating Companies and provides local telephone service in the U.S. state of West Virginia.
Verizon North LLC is a Verizon operating company providing local telephone service to former GTE customers in Pennsylvania.
Navajo Communications Company, Inc. is the operating company of Frontier Communications that provides telephone services in Arizona to the Navajo people.
Frontier Communications of the Carolinas LLC is an operating company created in 2009 when some assets of Verizon South were split off and sold to Frontier Communications. The company provides local telephone service to former Verizon customers in portions of southern Wisconsin, Illinois, South Carolina, and North Carolina.
Citizens Telecommunications Company of California Inc. is a telephone operating company of Frontier Communications based in Elk Grove, California. It was established in 1993 to acquire 5,000 access lines from GTE. In 1996, it acquired 20,000 access lines from Alltel in the Tuolumne and Golden State areas. In 2007, Citizens acquired Global Valley Networks, serving Capay Valley, Livingston, and Patterson. In 2013, Frontier Communications West Coast, a former GTE property serving Crescent City, was merged into Citizens.
Citizens Utilities Rural Company, Inc. is a telephone operating company of Frontier Communications serving customers in Mohave County, Arizona. It was established in 1962. It is separate from Citizens Telecommunications Company of the White Mountains and the Navajo Communications Company. W. B. Foshay Company, a predecessor of Frontier, bought California & Nevada Telephone of Kingman in 1929.
Citizens Telecommunications Company of Nebraska provides local telephone service in Nebraska and some rural communities in northern Kansas.
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.
The Southern New England Telephone Company, doing business as Frontier Communications of Connecticut, is a local exchange carrier owned by Frontier Communications.