| Business | Phone |
| Advanced Communications Inc 6414 E Betty Elyse Ln, Scottsdale 85254 | (480) 348-7787 |
| Advanced Telemanagement Group 15849 N 71st St, Scottsdale 85254 | (480) 515-9200 |
| Centurion Telecommunications 6900 E Camelback Rd # 912, Scottsdale 85251 | (480) 947-1122 |
| Dancris Telecommunications 6900 E Camelback Rd # 1003, Scottsdale 85251 | (480) 874-2700 |
| Mountain Telecommunications 10190 E Mckellips Rd, Scottsdale 85256 | (602) 850-9500 |
| Eschelon Facilities 16356 N Thompson Peak Pkwy, Scottsdale 85260 | (480) 451-5500 |
| Fans Telecom Inc 7466 E Monte Cristo Ave, Scottsdale 85260 | (480) 948-4928 |
| J P Goodhart & Assoc 9389 E Quarry Trl, Scottsdale 85262 | (480) 419-7004 |
| Stonegate Consulting 17301 N 79th St, Scottsdale 85255 | (480) 419-8777 |