List of GSM cell phone network companies in USA

  1. AT&T cingullar
  2. T-Mobile

List of CDMA cell phone network companies in USA

  1. Verizon Wireless
  2. U.S. Cellular
  3. Sprint
  4. Nextel
  5. Alltel
  6. Virgin Mobile USA

List of other Prepaid no contract Wireless cellular phone companies in USA

  1. Tracfone
  2. iwireless
  3. Boost Mobile
  4. Cricket
  5. Net10
  6. MetroPCS
  7. STI mobile

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