| Business | Phone |
| Cap Rock Communications 100 Taylor St 261, San Antonio 78205 | (210) 222-1885 |
| Claydesta Communications San Antonio 78205 | (210) 271-0927 |
| Mci 100 Taylor St, San Antonio 78205 | (210) 226-0484 |
| Network Associates 11222 Mystery Dr, San Antonio 78216 | (210) 340-4166 |
| Pilgrim Telephone 1 Kendall Sq, San Antonio 78229 | (210) 615-0363 |
| Usld 10500 San Pedro Ave, San Antonio 78216 | (210) 340-8786 |
| Westel Inc 10010 San Pedro Ave 350, San Antonio 78216 | (210) 349-5272 |
| Files Enterprises 9122 Windward Trce, San Antonio 78254 | (210) 673-7222 |
| Mci 222 Rotary, San Antonio 78202 | (210) 354-3630 |
| Lds Metromedia Long Distance San Antonio 78207 | (210) 270-2001 |
| Mci 20855 Stone Oak Pkwy, San Antonio 78258 | (210) 484-0000 |