SMITHERSLK — TX
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| SOUTHWESTERN BELL | 9533 | 3 |
| THE VOICE APPLICATION NETWORK, LLC | 507J | 1 |
| CENTURYLINK COMMUNICATIONS, LLC | 508J | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | 1 |
| MATRIX TELECOM, LLC. S/I/I TNCI - TX | 7715 | 1 |