- Alaska Communications Systems (ACS)
- Alltel-Allied
- Alltel-Verizon
- AT&T
- Bluegrass Cellular
- Boost Mobile
- Boost-CDMA
- CellCom
- Cellular One of NE PA
- Cellular South
- Centennial
- Chat Mobility-NW Missouri Cellular
- Cincinnati Bell
- Cox Wireless
- Cricket (Leap Wireless)
- Cross Wireless
- East Kentucky Network
- ECIT
- Element Mobile
- Epic Touch
- GCI Communications
- Golden State Cellular
- Illinois Valley Cellular
- Immix
- Inland Cellular
- IWireless
- Metro PCS
- Mosaic Telecom
- MTPCS Cellular One
- Nex Tech Communications
- Nextel
- nTelos
- Panhandle Wireless
- Pioneer Cellular
- Plateau Wireless
- Pocket
- Revol Wireless
- Simmetry Wireles
- Sprint
- Syringa Wireless
- T-Mobile
- Thumb Cellular
- TracFone (AT&T)
- United States Cellular Corp
- United Wireless
- Verizon
- Viaero Wireless
- Videotron
- Virgin Mobile
- West Central Wireless