MARSHALL — TX
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 5 |
| SOUTHWESTERN BELL | 9533 | 5 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | 3 |
| T-MOBILE USA, INC. | 6529 | 2 |
| ONVOY, LLC - TX | 903C | 2 |