RICHFIELD — UT
Data last updated: June 25, 2026
Area Codes
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| NEW CINGULAR WIRELESS PCS, LLC | 6010 | 2 |
| QWEST CORPORATION | 9636 | 2 |
| LEVEL 3 COMMUNICATIONS, LLC - UT | 3231 | 1 |
| TON80 COMMUNICATIONS, LLC | 516J | 1 |
| PEERLESS NETWORK OF UTAH, LLC - UT | 526H | 1 |