CALEDONIA — MI
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 2 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | 7157 | 1 |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 1 |
| MICHIGAN BELL TEL CO | 9323 | 1 |
| FRACTEL, LLC | 965H | 1 |