| Business | Phone |
| A T & T Local Svc 900 S Gay St, Knoxville 37902 | (865) 824-9900 |
| American Tower Corp 6305 Vance Rd, Knoxville 37921 | (865) 909-0071 |
| T Ds Telecom Region Office 9737 Cogdill Rd # 230, Knoxville 37932 | (865) 966-4700 |
| Teleconnect Service-Knoxville 5403 Western Ave # 104, Knoxville 37921 | (865) 212-4481 |
| Southeast Professional Comms 6547 Chapman Hwy, Knoxville 37920 | (865) 609-2511 |
| Millennum Technical Svc 10316 Starkey Ln, Knoxville 37932 | (865) 671-9481 |
| Link Communications Inc 5979 Westmere Dr, Knoxville 37909 | (865) 690-7604 |
| Look Up Solutions Group 9041 Executive Park Dr, Knoxville 37923 | (865) 525-5665 |
| Knology 10115 Sherrill Blvd, Knoxville 37932 | (865) 357-1000 |
| Knoxville Knox County Telecom 954 Worlds Fair Park Dr, Knoxville 37916 | (865) 329-4026 |