| ACS Wireless | Cox Wireless | Pocket Wireless |
| Alltel | Cricket Communications | Revol Wireless |
| All West Communications | Element Mobile | Silver Star PCS |
| Appalachian Wireless | Farmers Mutual Telephone Co. | Simmetry Wireless |
| AT&T | GCI Wireless | Snake River PCS |
| Bluegrass Wireless | Golden State Cellular | South Central Communications |
| Boost | Illinois Valley Cellular | Sprint |
| Boost Unlimited | Immix | Sprocket Wireless |
| Breakaway Wireless | Inland Cellular | Strata Wireless |
| Carolina West Wireless | iWireless | Syringa Wireless |
| Cambridge Telephone Company (CTC) | Metro PCS | Thumb Cellular |
| Cellcom | Midwest Wireless | T-Mobile |
| Cellular South | Nex-Tech Wireless | United Wireless |
| Cellular One of East Central Illanois | Nextel | Union Wireless |
| Cellular One of Montana | Northwest Missouri Cellular | U.S. Cellular |
| Cellular One of NEPA | nTelos | Verizon Wireless |
| Centennial Wireless | Nucla-Naturita Telephone | Viaero Wireless |