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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.
Stage 2 is a New York-based converged network services provider that offers a robust and redundant network with connectivity, quality of service and local number portability available across the country and, often, around the world, with CLEC capabilities in the New York metro market.
RNK Communications is one of the leading companies in the Telecommunications sector.
PCCW Global is one of the leading companies in the Telecommunications sector.
Nuera Communications, Inc. is one of the leading companies in the Telecommunications sector.