CALDWELL — TX
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 2 |
| FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | 1 |
| TEXAS COMMUNICATIONS, INC. | 6820 | 1 |
| ONVOY, LLC - TX | 903C | 1 |