| Business | Phone |
| Cingular Wireless 4523 E Us Highway 83, Rio Grande City 78582 | (956) 716-8000 |
| Eddies Pageing 1110 E Us Highway 83, Rio Grande City 78582 | (956) 487-5956 |
| Sprint 4570 E Us Highway 83, Rio Grande City 78582 | (956) 488-6808 |
| T-Mobile Usa 4351 E Us Highway 83, Rio Grande City 78582 | (956) 488-0878 |
| Nextel 5449 E Us Highway 83 # A, Rio Grande City 78582 | (956) 488-9900 |