COTULLA — TX
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | 1 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 1 |
| ONVOY, LLC - TX | 903C | 1 |
| SOUTHWESTERN BELL | 9533 | 1 |
| FRACTEL, LLC | 965H | 1 |
Data last updated: March 10, 2026
| Carrier | OCN | NXX Count |
|---|---|---|
| LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | 1 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 1 |
| ONVOY, LLC - TX | 903C | 1 |
| SOUTHWESTERN BELL | 9533 | 1 |
| FRACTEL, LLC | 965H | 1 |