COLUMBIAVL — MI
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER NORTH, INC. - MI | 0695 | 1 |
| TON80 COMMUNICATIONS, LLC | 516J | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | 1 |
| PEERLESS NETWORK OF MICHIGAN, LLC - MI | 933G | 1 |