HARLINGEN — TX
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| SOUTHWESTERN BELL | 9533 | 22 |
| STPCS JOINT VENTURE, LLC | 4290 | 21 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 8 |
| METROPCS, INC. | 5562 | 6 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | 3 |