| Business | Phone |
| A L Gardner Telecommunications 13614 Wood Ln, San Antonio 78216 | (210) 657-5600 |
| Abyx Business Systems Inc 609 E Dewey Pl, San Antonio 78212 | (210) 223-2299 |
| Adtel Solutions Inc 4207 Gardendale St # 107 # B, San Antonio 78229 | (210) 341-0020 |
| Alamo Telephones 3015 Shady Springs Dr, San Antonio 78230 | (210) 366-3664 |
| Austin Telephone Co San Antonio 78230 | (210) 558-3559 |
| Beza-Tel Communications San Antonio 78217 | (210) 599-4923 |
| Blr Communications Systems San Antonio 78217 | (210) 573-8333 |
| Capitol Area Networks San Antonio 78205 | (210) 212-6632 |
| Commercial Telephone Instltn 10115 Broadway St, San Antonio 78217 | (210) 824-5035 |
| Contel Executone 2941 Mossrock, San Antonio 78230 | (210) 377-1009 |
| Design Telephone Systems 12008 Warfield St 2, San Antonio 78216 | (210) 341-1188 |
| Digetel 215 E Nakoma St, San Antonio 78216 | (210) 349-2700 |
| Itt Teleco 401 Isom Rd 570, San Antonio 78216 | (210) 349-2111 |
| Mercury Communication Svc 2929 Mossrock, San Antonio 78230 | (210) 349-1001 |
| Network Logistic Inc San Antonio 78205 | (210) 223-0400 |
| Star Communications 7340 Blanco Rd, San Antonio 78216 | (210) 348-7827 |
| Telenational San Antonio 78216 | (210) 342-1354 |
| Telephonics Corp 3817 Parkdale St 138, San Antonio 78229 | (210) 593-4110 |
| Tex-Tel Solutions 11900 Crownpoint Dr, San Antonio 78233 | (210) 495-6900 |
| Torres Services Inc 929 Burr Rd, San Antonio 78209 | (210) 822-7201 |
| Truh Telephone Systems 427 Fantasia St, San Antonio 78216 | (210) 344-7893 |
| Universal Solutions San Antonio 78216 | (210) 308-9453 |
| Voice Data Solutions 13423 Blanco Rd 145, San Antonio 78216 | (210) 645-4676 |
| Cable-Net Communications 4536 Thousand Oaks Dr # 104, San Antonio 78233 | (210) 657-9273 |
| Clearcom Communications Inc 1945 Lockhill Selma Rd 106, San Antonio 78213 | (210) 541-0080 |
| Communication Network Design 11969 Starcrest Dr, San Antonio 78247 | (210) 495-1888 |
| Ati 13702 Forest Rock Dr, San Antonio 78231 | (210) 492-5255 |
| Digicom Voice & Data 12306 La Barca St, San Antonio 78233 | (210) 590-3741 |
| Standard Telephone & Equipment 6707 Cypress Lake Dr, San Antonio 78244 | (210) 310-0001 |
| Ics Telephones 10430 Gulfdale St, San Antonio 78216 | (210) 225-5427 |
| Jascom 11120 Watt Cir, San Antonio 78233 | (210) 590-7000 |
| L & D Telecom Po Box 65045, San Antonio 78265 | (210) 481-1111 |
| Southern Networks San Antonio 78264 | (210) 626-5000 |
| Quest Telephone Systems Inc 7966 Mainland Dr 2, San Antonio 78250 | (210) 509-3414 |
| Rivercity Communications 7632 Briston Park Dr, San Antonio 78249 | (210) 690-0403 |
| Silver Resources Inc 6866 Bandera Rd, San Antonio 78238 | (210) 256-7557 |
| Stratton Voice & Data 14427 Brook Hollow 181, San Antonio 78232 | (210) 656-3186 |
| Teleco-James Svc & Design 6319 Silver Fox St, San Antonio 78247 | (210) 654-8995 |
| Advantage Telcom Supply 4703 Shavano Oak 100, San Antonio 78249 | (210) 493-6050 |
| Apq Inc 11726 Spring Ridge Dr, San Antonio 78249 | (210) 696-8465 |
| Artcom Assoc Inc 7823 Marina Dr, San Antonio 78250 | (210) 684-8877 |