HARLINGEN — TX
Data last updated: August 31, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| STPCS JOINT VENTURE, LLC | 4290 | 24 |
| SOUTHWESTERN BELL | 9533 | 22 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 8 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | 3 |
| ONVOY, LLC - TX | 903C | 3 |