| Business | Phone |
| Option Data Inc Dallas 75220 | (214) 357-1900 |
| Fowler Productions Dallas 75247 | (214) 634-9977 |
| Bellsouth Long Distance 3180 Irving Blvd, Dallas 75247 | (214) 879-0381 |
| A T & T Voice 4100 Bryan St, Dallas 75204 | (214) 824-1304 |
| Continental Fax D/Fw Airport, Dallas 75261 | (972) 456-1069 |
| Carrera Communications Dallas 75201 | (214) 712-6320 |
| Mps Intelenet Inc 1950 N Stemmons Fwy, Dallas 75207 | (214) 939-8800 |
| Master Corp 13355 Noel Rd 1000, Dallas 75240 | (972) 851-7888 |
| Logix Communications Midtown 7610 Stemmons Fwy 420, Dallas 75247 | (214) 741-6608 |
| A T & T 17300 Dallas Pkwy 1000, Dallas 75248 | (972) 407-6486 |
| Rwt Inc 17250 Dallas Pkwy 200, Dallas 75248 | (972) 588-2100 |
| American Telco 14114 Dallas Pkwy, Dallas 75254 | (972) 385-6130 |