SONORA — TX
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | 1 |
| ONVOY SPECTRUM, LLC | 624H | 1 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | 1 |
| T-MOBILE USA, INC. | 6529 | 1 |
| TEXAS COMMUNICATIONS, INC. | 6820 | 1 |