| Business | Phone |
| Cingular Wireless 1104 Thorpe Ln A, San Marcos 78666 | (512) 558-5555 |
| Sprint 350 N Guadalupe St 160, San Marcos 78666 | (512) 558-7960 |
| Verizon Wireless - San Marcos/1144 911 Highway 80, San Marcos 78666 | (512) 353-6363 |
| Wireless Store Downtown 313 N L B J Dr, San Marcos 78666 | (512) 805-8767 |