BERTHOUD — CO
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| AMERICAN MESSAGING SERVICES, LLC | 9748 | 2 |
| ONVOY, LLC - CO | 026D | 1 |
| PEERLESS NETWORK OF COLORADO, LLC - CO | 278F | 1 |
| COMCAST IP PHONE, LLC | 318J | 1 |
| ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 3467 | 1 |