PORTSMOUTH — OH
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER NORTH, INC. - OH | 0615 | 13 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | 4 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 4 |
| AERIAL COMMUNICATIONS, INC. | 6701 | 2 |
| TWC IP ENABLED SERVICES, LLC | 793K | 2 |