NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM
26 prefixes in 928 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 928-283 | TUBA CITY | 4449 | — | — |
| 928-652 | WIDE RUINS | 4449 | — | Yes |
| 928-653 | RED VALLEY | 4449 | — | Yes |
| 928-654 | GREASEWOOD | 4449 | — | Yes |
| 928-656 | TEECNOSPOS | 4449 | — | Yes |
| 928-657 | DILKON | 4449 | — | — |
| 928-658 | DENNEHOTSO | 4449 | — | Yes |
| 928-659 | ROCK POINT | 4449 | — | Yes |
| 928-672 | SHONTO | 4449 | — | Yes |
| 928-673 | KAIBITO | 4449 | — | Yes |
| 928-674 | CHINLE | 4449 | — | — |
| 928-677 | BLACK MESA | 4449 | — | — |
| 928-686 | LEUPP | 4449 | — | Yes |
| 928-697 | KAYENTA | 4449 | — | — |
| 928-698 | LE CHEE | 4449 | — | Yes |
| 928-724 | TSAILE | 4449 | — | Yes |
| 928-725 | PINONCTNWD | 4449 | — | Yes |
| 928-728 | ROUGH ROCK | 4449 | — | Yes |
| 928-729 | FTDEFIANCE | 4449 | — | — |
| 928-736 | TOYEI | 4449 | — | Yes |
| 928-755 | GANADO | 4449 | — | Yes |
| 928-781 | CHINLE | 4449 | — | Yes |
| 928-787 | LUKACHUKAI | 4449 | — | Yes |
| 928-810 | WINDOWROCK | 4449 | — | Yes |
| 928-815 | WINDOWROCK | 4449 | 2011-02-03 | Yes |
| 928-871 | WINDOWROCK | 4449 | — | — |
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.