SAWYER — MI
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER MIDSTATES, INC. - MI | 0681 | 1 |
| ONVOY, LLCV - MI | 543C | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 1 |