| Business | Phone |
| Communication Impact 1556 Hartnell Ave, Redding 96002 | (530) 222-4000 |
| Comtec Telephone & Data 1849 Keystone Ct, Redding 96003 | (530) 222-1275 |
| Executone 2510 Tarmac Rd # A, Redding 96003 | (530) 221-1222 |
| Kern Telecom 2691 Reservoir Ln # F, Redding 96002 | (530) 949-8234 |
| Lambcom 7508 Honeybee Rd, Redding 96001 | (530) 244-0316 |
| Northstate Telephone Svc Inc 20250 Skypark Dr # A, Redding 96002 | (530) 222-8223 |
| Pinnacle Telecom Inc 4950 Mountain Lakes Blvd # D, Redding 96003 | (530) 241-4666 |
| Redding Communications 1666 E Cypress Ave # 8, Redding 96002 | (530) 226-8022 |
| Shasta Com 833 Mistletoe Ln, Redding 96002 | (530) 224-2097 |
| Son-Tel Systems 2565 Corona St, Redding 96002 | (530) 223-2800 |