WILLIS — TX
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | 3 |
| BANDWIDTH.COM CLEC, LLC - TX | 004F | 2 |
| ONVOY, LLC - TX | 903C | 2 |
| PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | 1 |
| METROPCS, INC. | 5562 | 1 |