NEW HAVEN — MI
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | 3 |
| ONVOY, LLCV - MI | 543C | 2 |
| METROPCS, INC. | 5562 | 2 |
| OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | 1 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | 1 |