DETROITZN5 — MI
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 77 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | 54 |
| OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | 51 |
| MICHIGAN BELL TEL CO | 9323 | 27 |
| AMERICAN MESSAGING SERVICES, LLC | 9748 | 14 |