| Business | Phone |
| Arizona Dialtone 3802 S 6th Ave, Tucson 85714 | (520) 807-2285 |
| Cliff Dupuis Telephn Co 100 E Alameda St, Tucson 85701 | (520) 884-2835 |
| Computer Assets Inc 115 E Mohave Rd, Tucson 85705 | (520) 690-3926 |
| Cox Business Svc 1140 E 15th St, Tucson 85719 | (520) 393-3191 |
| Westech Data 12995 N Oracle Rd # 225, Tucson 85739 | (520) 229-1828 |
| Westel Inc 6377 E Tanque Verde Rd # 230, Tucson 85715 | (520) 290-9707 |
| Xspedius 33 N Stone Ave # 1200, Tucson 85701 | (520) 547-2274 |
| Ventura Telephone Eqpt Inc 1010 E Palmdale St # 101, Tucson 85714 | (520) 888-7888 |
| Team Mates Intl Inc 801 W River Rd, Tucson 85704 | (520) 888-1930 |
| Telephone Pioneers Of America 333 E Wetmore Rd, Tucson 85705 | (520) 292-7502 |
| Telephone Pioneers Of America 4750 N Oracle Rd, Tucson 85705 | (520) 884-2502 |
| Teletronics 7133 N Mona Lisa Rd, Tucson 85741 | (520) 742-1400 |
| Time Warner Telecom 432 S Williams Blvd # 100, Tucson 85711 | (520) 618-4201 |
| Qwest 4425 N Flowing Wells Rd, Tucson 85705 | (520) 888-2171 |
| Mci 220 W Elm St, Tucson 85705 | (520) 670-9123 |
| Intellitech 2300 W Wetmore Rd, Tucson 85705 | (520) 888-2255 |