HEREFORD — TX
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 3 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | 2 |
| W T SERVICES, INC. | 7809 | 2 |
| SOUTHWESTERN BELL | 9533 | 2 |
| LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | 1 |