CITIZENS TELECOM-UTAH DBA FRONTIER COMM OF UT
28 prefixes in 435 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 435-207 | TREMONTON | 4429 | — | — |
| 435-257 | TREMONTON | 4429 | — | — |
| 435-259 | MOAB | 4429 | — | — |
| 435-279 | BEARRIV CY | 4429 | — | Yes |
| 435-285 | THOMPSON | 4429 | — | — |
| 435-452 | BEARRIV CY | 4429 | — | Yes |
| 435-458 | FIELDING | 4429 | — | Yes |
| 435-471 | HOWELL | 4429 | — | — |
| 435-587 | MONTICELLO | 4429 | — | — |
| 435-672 | BLUFF | 4429 | — | — |
| 435-678 | BLANDING | 4429 | — | — |
| 435-683 | MEXICANHAT | 4429 | — | — |
| 435-684 | LAKEPOWELL | 4429 | — | — |
| 435-686 | LA SAL | 4429 | — | — |
| 435-692 | NAT BRIDGE | 4429 | — | — |
| 435-719 | MOAB | 4429 | — | — |
| 435-743 | FILLMORE | 4429 | — | — |
| 435-758 | SCIPIO | 4429 | — | — |
| 435-759 | KANOSH | 4429 | — | — |
| 435-795 | HOLDEN | 4429 | — | — |
| 435-842 | MEADOW | 4429 | — | — |
| 435-846 | OAK CITY | 4429 | — | — |
| 435-854 | THATCHER | 4429 | — | Yes |
| 435-857 | LYNNDYL | 4429 | — | — |
| 435-863 | PROMONTORY | 4429 | — | — |
| 435-864 | DELTA | 4429 | — | Yes |
| 435-866 | PORTAGE | 4429 | — | Yes |
| 435-872 | SNOWVILLE | 4429 | — | Yes |
These are initial assignees from NANPA CO-code records — because of number portability, the current serving carrier of individual numbers may differ. Bulk export requires a membership.