NEPHI — UT
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | 2 |
| BANDWIDTH.COM CLEC, LLC - UT | 117F | 1 |
| LEVEL 3 COMMUNICATIONS, LLC - UT | 3231 | 1 |
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 1 |
| T-MOBILE USA, INC. | 6529 | 1 |