HILLSBORO — OH
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 3 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | 2 |
| OHIO BELL TEL CO | 9321 | 2 |
| TELNYX LLC | 073H | 1 |
| METROPCS, INC. | 5562 | 1 |