GLADWIN — MI
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | 5 |
| ONVOY, LLCV - MI | 543C | 2 |
| MICHIGAN BELL TEL CO | 9323 | 2 |
| OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | 1 |
| INTERACTIVE SERVICES NETWORK, INC. | 817J | 1 |