WHITEHALL — MI
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER NORTH, INC. - MI | 0695 | 3 |
| ONVOY, LLCV - MI | 543C | 1 |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 1 |
Data last updated: June 25, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER NORTH, INC. - MI | 0695 | 3 |
| ONVOY, LLCV - MI | 543C | 1 |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 1 |