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Telephone and Data Systems, Inc. is a Chicago-based telecommunications service company providing wireless, local- and long-distance telephone, broadband and video services to approximately 7 million customers in 36 states through its business units TDS Telecom and U.S. Cellular. The company began as a rural phone company in Wisconsin in 1969. In 1983 it founded U.S. Cellular as a subsidiary.
Onvoy Voice Services is one of the leading companies in the Telecommunications sector.
Headquartered in Anchorage, ACS is Alaska's leading provider of broadband and other wireline and wireless solutions to Enterprise and mass market customers.
C Spire is an advanced technology company that delivers customer-inspired, nationwide wireless network services, business solutions and 1Gbps Fiber to the Home Internet / HDTV / VOIP.
Based in High Point, N.C., NorthState is a technology company that provides Internet-driven services to residential consumers and businesses of all sizes. Using its fiber-fast network, NorthState supplies Internet, television and voice services to customers in North Carolina`s Piedmont Triad. Through its NorthState Technology Solutions business unit, the company provides technology assurance with business-specific IT and datacenter solutions to clients throughout the Southeastern United States.