DUMAS — TX
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW | 1181 | 3 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | 2 |
| T-MOBILE USA, INC. | 6529 | 2 |
| LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | 1 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 1 |