| Business | Phone |
| Corder Communications & Data 519 E I30 Pmb 155, Rockwall 75087 | (214) 515-0500 |
| C-Tap 316 S Goliad St, Rockwall 75087 | (214) 887-3544 |
| Fec Communications 2233 Ridge Rd, Rockwall 75087 | (972) 722-7033 |
| Nca Communications 2921 Bentridge Dr, Rockwall 75032 | (972) 772-8020 |