NORTHPORT — MI
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| 123.NET, LLC | 2550 | 2 |
| ONVOY, LLCV - MI | 543C | 2 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 1 |
| INTERACTIVE SERVICES NETWORK, INC. | 817J | 1 |
| MICHIGAN BELL TEL CO | 9323 | 1 |