| Business | Phone |
| Aaa Discount Voice Mail Denver 80202 | (303) 446-0185 |
| American Voice Mail Inc 5500 E Pacific Pl, Denver 80222 | (303) 575-5600 |
| Clarity Telecom Denver 80202 | (303) 963-1400 |
| Jabber 1899 Wynkoop St, Denver 80202 | (303) 308-3231 |
| Multi-Link Telecom Inc 4704 Harlan St # 420, Denver 80212 | (303) 831-1977 |