NORTHFIELD — OH
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| WINDSTREAM WESTERN RESERVE, INC. | 0666 | 6 |
| ONVOY, LLC - OH | 464C | 2 |
| ONVOY SPECTRUM, LLC | 624H | 1 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | 1 |
| TWC IP ENABLED SERVICES, LLC | 793K | 1 |