PORTLAVACA — TX
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | 4 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 3 |
| STPCS JOINT VENTURE, LLC | 4290 | 1 |
| TWILIO INTERNATIONAL, INC. | 506J | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |