| Business | Phone |
| Windstream Communications 400 W 15th St 440, Austin 78701 | (512) 457-9949 |
| Westel Inc 9606 N Mo Pac Expy 700, Austin 78759 | (512) 480-5500 |
| X O Communications Inc 2100 S Ih 35, Austin 78704 | (512) 692-1000 |
| Xo Communiations 2100 S I H 35, Austin 78704 | (512) 441-5528 |
| Consolidated Communications 1005 Congress 410, Austin 78701 | (512) 427-1900 |
| Telco-Data 10109 Mckalla Pl G, Austin 78758 | (512) 977-0505 |
| Qwest Solutions Ctr 8303 N Mo Pac Expy, Austin 78759 | (512) 338-5700 |
| Logix Communications 210 Barton Springs Rd, Austin 78704 | (512) 794-8500 |
| First Network Communications 5907 Carry Back Ln, Austin 78746 | (512) 327-5638 |
| Valutel Communications 13809 N Hwy 183 705, Austin 78750 | (512) 249-7787 |
| Voxpath Networks Inc 7600 N Capital Of Tex Hwy #220, Austin 78731 | (512) 343-8877 |
| Brooks Fiber Texas 211 E 7th St 900, Austin 78701 | (512) 494-1376 |
| Bestline Communications 500 N Capital Of Tx Hwy 8-200, Austin 78746 | (512) 637-7000 |
| A T & T Government Relations 919 Congress Ave, Austin 78701 | (512) 370-3006 |
| Adc 915 Colorado St, Austin 78701 | (512) 494-0351 |
| Sure-Tel 9515 N Lamar Blvd, Austin 78753 | (512) 836-1554 |
| Genband 12303 Technology Blvd, Austin 78727 | (512) 681-5400 |
| Ics 4407 Monterey Oaks Blvd 1-14, Austin 78749 | (512) 433-4700 |
| Itc Deltacom Austin 78729 | (512) 385-1527 |
| Sure-Tel 4631 Airport Blvd, Austin 78751 | (512) 420-0521 |
| Charles Trammell 712 E Huntland Dr, Austin 78752 | (512) 421-5100 |
| Children's Telephone 12804 Silver Creek Dr, Austin 78727 | (512) 388-5987 |
| Coi Telecom 9006 Cullen Ln, Austin 78748 | (512) 282-7925 |