| Business | Phone |
| Advanced Fiber Communications 501 W President George Bush Hw, Richardson 75080 | (972) 889-1033 |
| Comscape Communications Llc Richardson 75080 | (972) 231-3196 |
| Dfw Communications Richardson 75080 | (469) 730-4339 |
| Future Communications 800 E Campbell Rd 199, Richardson 75081 | (972) 680-5127 |
| Garnett Communications 800 E Campbell Rd, Richardson 75081 | (972) 680-5137 |
| Integra Communications 990 N Bowser Rd, Richardson 75081 | (972) 744-9900 |
| Intermedia Communications Hq 2435 N Central Expy, Richardson 75080 | (972) 808-9928 |
| Ncs Communications 1343 Columbia Dr, Richardson 75081 | (972) 235-5426 |
| Radian Communication Svc 740 E Campbell Rd, Richardson 75081 | (972) 669-1653 |
| Radian Communication Svc Es 740 E Campbell Rd, Richardson 75081 | (972) 669-1635 |
| Spanlink Communications 214 Canyon Valley Dr, Richardson 75080 | (972) 231-2112 |
| Goldentel 1343 Columbia Dr 405, Richardson 75081 | (972) 919-1936 |
| Visionquest Communications 1177 Rockingham Ln, Richardson 75080 | (972) 690-4588 |
| Extel Communications 2220 Campbell Creek Blvd, Richardson 75082 | (214) 615-8699 |
| Jpi Communications 2813 Ashbury Dr, Richardson 75082 | (972) 238-1773 |