HOLDENVL — OK
Data last updated: March 10, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| T-MOBILE USA, INC. | 6529 | 2 |
| LEVEL 3 COMMUNICATIONS, LLC - OK | 5257 | 1 |
| UNITED STATES CELLULAR - OK | 6272 | 1 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 1 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OK | 7258 | 1 |