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Secure Data Group is a Irvine, CA-based company in the Telecommunications sector.
Memory Dealers is a Santa Clara, CA-based company in the Telecommunications sector.
Tango Down Llc is a La Verne, CA-based company in the Telecommunications sector.
MIT Telecom is a Wilmington, DE-based company in the Telecommunications sector.
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.