| Business | Phone |
| Cti Technologies 7252 S Acoma St, Littleton 80120 | (303) 794-1359 |
| Sigma Telecom Solutions Llc 5601 S Broadway, Littleton 80121 | (720) 259-4520 |
| Afl Telecommunications 10211 Bentwood Cir, Littleton 80126 | (720) 344-5377 |
| Time Warner Telecom Inc 10475 Park Meadows Dr, Littleton 80124 | (303) 566-1000 |
| Central Telecom 9150 Commerce Center Cir, Littleton 80129 | (303) 346-2574 |
| Comm Unique 3869 Norwood Dr # 5, Littleton 80125 | (303) 797-3511 |
| Municipal Broadband Networks 10074 Keenan St, Littleton 80130 | (303) 346-7869 |
| R3mo Home Networking Sltns 9385 W Hinsdale Pl, Littleton 80128 | (303) 875-5371 |