| Business | Phone |
| 3rd Wave Solutions Inc 444 N 44th St # 222, Phoenix 85008 | (602) 252-5800 |
| A Commstar 3646 E Ray Rd # B 1635, Phoenix 85044 | (480) 759-6393 |
| Acme Communications Inc 4631 N 100th Dr, Phoenix 85037 | (623) 780-8787 |
| Adtran Inc 9201 N 25th Ave # 200, Phoenix 85021 | (602) 687-1600 |
| Aha Telecomp 16442 N 40th St, Phoenix 85032 | (602) 992-6091 |
| Alpha Communications 2375 E Camelback Rd, Phoenix 85016 | (602) 468-3080 |
| Arizona Jacks 545 E Willetta St, Phoenix 85004 | (602) 254-8959 |
| Arizona Voice & Data 16042 N 32nd St, Phoenix 85032 | (602) 788-5071 |
| Shared Technologies 2700 N Central Ave, Phoenix 85004 | (602) 852-0610 |
| Bel-Tronics Communication Syst Po Box 82103, Phoenix 85071 | (602) 942-9340 |
| Bizcom Information Systems 6846 N 3rd Ave, Phoenix 85013 | (602) 252-2222 |
| Bls Communications 6146 N 35th Ave # D, Phoenix 85017 | (602) 973-9633 |
| C-Tel Telcom Consulting Phoenix 85041 | (602) 237-9800 |
| Canyon Telecom 3520 N 7th St, Phoenix 85014 | (602) 331-7200 |
| Catalyst Telecom 4050 E Cotton Center Blvd # 37, Phoenix 85040 | (602) 454-1013 |
| City Communications 3800 N Central Ave # 750, Phoenix 85012 | (602) 266-3100 |
| Commercial Telephone Systs Inc 8121 N 9th Ave, Phoenix 85021 | (602) 997-6041 |
| Complete Communications Phoenix 85048 | (480) 759-1700 |
| Cortel Communications Phoenix 85020 | (602) 861-4724 |
| Cowan Communications 2135 W Melinda Ln # C, Phoenix 85027 | (602) 973-0032 |
| Cross Telecom 13601 S 44th St # 2124, Phoenix 85044 | (480) 961-1459 |
| Modern Communication Systems 7342 W Indian School Rd # 126, Phoenix 85033 | (623) 845-8111 |
| Micor Edc Inc 15681 N Cave Creek Rd, Phoenix 85032 | (602) 276-1996 |
| Interact Inc 3526 E Ahwatukee Ct, Phoenix 85044 | (480) 598-1011 |
| Ixm Technologies 3001 W Indian School Rd, Phoenix 85017 | (602) 297-1000 |
| Lei Communications 1831 W Rose Garden Ln # 5, Phoenix 85027 | (602) 996-2345 |
| Koss Communication Systems Inc 23025 N 15th Ave # 102, Phoenix 85027 | (623) 780-5993 |
| Southwest Interconnect Svc 1810 W Northern Ave # A9-122, Phoenix 85021 | (602) 258-9416 |
| Level One Communications, Inc. 6718 N. 15th Street, Phoenix 85014 | (602) 606-2889 |