USA network carriers using GSM technology
- Airfire Mobile
- ASTAC
- Asset/Vada Wireless (uses AT&T/ TMobile)
- AT&T (Includes GoPhone Prepaid, Dobson Cellular, Edge Wireless and Centennial Wireless)
- Broadpoint
- Calhan Wireless
- call4care
- Cellular One of East Central Illinois
- Cellular One of East Arizona
- Cellular One Nation
- Cellular One TXOK
- Chariton Valley Wireless
- Cincinnati Bell Wireless
- Commnet Wireless (also uses CDMA)
- Consumer Cellular (uses AT&T towers)
- Cordova Wireless
- Corr Wireless
- Cross Communications
- DTC Wireless
- Earthtones
- Epic PCS
- Fuzion Mobile
- GCI Wireless (also uses CDMA)
- GTC Wireless (uses AT&T towers)
- i wireless
- Immix
- Indigo Wireless
- Jolt Wireless (uses AT&T towers)
- KTC PACE
- Locus Mobile (uses CDMA, Verizon & AT&T towers)
- Long Lines Wireless
- Mobal Freedom (uses AT&T towers)
- NEP Wireless
- Pine Cellular
- Plateau Wireless
- Pure Prepaid (uses AT&T towers)
- Pure Talk USA (uses AT&T towers)
- Simple Mobile (uses T-Mobile towers)
- Shaka Mobile (also uses CDMA, Verizon & Sprint towers)
- Telecom North America Mobile Inc
- TerreStar
- T-Mobile USA
- TracFone Wireless (also uses CDMA, AT&T, Verizon, Sprint, US Cellular and T-Mobile towers)
- Tru (uses T-Mobile towers)
- Union Wireless
- Viaero Wireless
- Wal-Mart Family Mobile (uses T-Mobile towers)
- West Central Wireless
- Westlink
- XIT Communications
USA network carriers using CDMA technology
- Alaska Communications
- Alltel
- Appalachian Wireless
- BeyondMobile (uses Sprint towers)
- Blue (also uses GSM)
- Bluegrass Cellular
- Blue Wireless
- Boost Mobile (uses Sprint towers)
- Carolina West Wireless
- Cellcom
- Cellular One of Northeast PA (purchased by Verizon)
- Cellular One Bermuda
- C Spire Wireless
- Clear Talk
- Commnet Wireless (also uses GSM)
- CREDO Moble (uses Sprint towers)
- Cricket Communications (including Jump Mobile Prepaid)
- Eclipse Mobile
- Element MobileGCI Wireless (also uses GSM)
- Golden State Cellular
- GreatCall (uses Verizon towers)
- i-wireless (uses Sprint towers)
- KDDI Mobile (uses Sprint towers)
- Liberty Wireless (uses Sprint towers)
- Locus Mobile (uses Verizon towers & GSM AT&T towers)
- MetroPCS
- Mobi PCS
- Movida Wireless (uses Sprint towers)
- Nex-Tech Wireless
- nTelos
- Page Plus Cellular (uses Verizon towers)
- Panhandle Telecommunication Systems
- Pioneer Cellular
- PlatinumTel Prepaid Wireless (uses Sprint towers)
- Pocket Communications
- Republic Wireless (uses Sprint towers)
- Revol Wireless
- ReadyMobile (uses Sprint towers)
- Shaka Mobile (uses Verizon & Sprint towers)
- Sprint Nextel
- Standing Rock Telecom
- STI Mobile (uses Sprint towers)
- Syringa Wireless
- Thumb Cellular
- Ting (uses Sprint towers)
- TracFone Wireless – includes NET10, Simple Mobile, Straight Talk (also uses GSM & towers from AT&T, Verizon, Sprint, US Cellular & T-Mobile)
- Trumpet Mobile (uses Sprint towers)
- U.S. Cellular – TalkTracker Prepaid
- Verizon Wireless – INPulse Prepaid
- Virgin Mobile USA
- Zing PCS