Alaska Communications Systems | Cellular One of N.E. Pennsylvania | Iowa Wireless | Simmetry PCS (TMP) |
| Alaska Wireless | Chariton Valley | Leaco Rural Telephone Co. | South Central Communications |
| Alltel | Chinook Wireless (MTPCS) | Long Lines | Sprint Nextel |
| All West | Cincinnati Bell Wireless | Metro PCS | SRT Communications |
| AT&T | Copper Valley Wireless | MobiPCS | SunCom Wireless |
| Bell Mobility | Cricket Wireless | Mojave Wireless | SureWest Wireless |
| Bluegrass Cellular | Dobson | NEP Wireless | Syringa Wireless |
| Boost Mobile | Eagle Telephone / Snake River PCS | Nex-Tech Wireless | Telus Mobility |
| Cambridge | Edge Wireless | nTelos | T-Mobile |
| Carolina West | Epic PCS | Nucla / Naturita Telephone Co. | UBET Communications |
| CC Communications | Farmer's Mutual Telephone Co. | Pace Cellular / Kaplan | Union Tel |
| Centennial Wireless | Farmers Wireless | Pioneer Wireless | US Cellular |
| Cellcom | Hargray | Pocket Communications | Viaero Wireless |
Cell One East Texas | Helio Wireless | Rogers | Virgin Mobile USA |
Cell One San Luis Obispo | IMMIX Wireless | Rural Cellular | West Central Wireless |
Cellular one of E. Central Illinois | Inland Cellular | Silver Star PCS | XIT Communications |
Cellular One of N.E. Arizona | | | |