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DataJack, Inc. is a wholly owned subsidiary of Quamtel, Inc. (OTCBB: QUMI), a public holding company headquartered in Dallas, Texas. Quamtel provides a comprehensive portfolio of advanced telecommunications technologies, enhanced service solutions and next generation broadband service. Quamtel operates in the U.S. and on a global scale through its subsidiaries DataJack, Inc. and WQN, Inc.
Changing Internet Speed and Performance (CISP) is a Toledo, OH-based company in the Telecommunications sector.
Capital City Telecom is a Jefferson City, MO-based company in the Telecommunications sector.
MTN Group Limited, formerly M-Cell, is a South African multinational mobile telecommunications company, operating in many African and Asian countries.
FIN Communications is a Frederick, MD-based company in the Telecommunications sector.