FRISCO — TX
Data last updated: October 30, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| T-MOBILE USA, INC. | 6529 | 27 |
| SOUTHWESTERN BELL | 9533 | 25 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 14 |
| ONVOY, LLC - TX | 903C | 13 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 9 |