| Business | Phone |
| Advantage Telephone Svc Corpus Christi 78409 | (361) 289-0908 |
| Birch Telecom 606 N Carancahua St, Corpus Christi 78476 | (361) 880-4103 |
| Tel West 539 N Carancahua St 201, Corpus Christi 78401 | (361) 561-3200 |
| Telephone Planning Svc 406 N Carancahua St, Corpus Christi 78401 | (361) 881-2111 |
| Test Phone Clearsource 6441 Saratoga Blvd, Corpus Christi 78414 | (361) 334-3165 |
| Capital Telecommunications Inc 800 N Shoreline Blvd, Corpus Christi 78401 | (361) 851-8000 |
| Carrera Communications Corpus Christi 78414 | (361) 334-0085 |
| Choicecom-Icg Communications 539 N Carancahua St, Corpus Christi 78401 | (361) 561-2266 |
| Sbc 446 Carancahua, Corpus Christi 78401 | (361) 967-6500 |
| Smart Com Telephone 606 N Carancahua St, Corpus Christi 78476 | (361) 692-0688 |
| E Loomis Telecommunication 520 Santa Monica Pl, Corpus Christi 78411 | (361) 853-6911 |