FRONTIER CALIFORNIA INC.
140 prefixes in 805 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 805-228 | OXNARD | 2319 | — | Yes |
| 805-229 | SANTAPAULA | 2319 | — | Yes |
| 805-230 | THOUSAOAKS | 2319 | — | — |
| 805-240 | OXNARD | 2319 | — | Yes |
| 805-241 | CONEJO | 2319 | — | — |
| 805-246 | POINT MUGU | 2319 | — | Yes |
| 805-247 | OXNARD | 2319 | — | — |
| 805-262 | NEWBURYPRK | 2319 | — | Yes |
| 805-271 | POINT MUGU | 2319 | — | Yes |
| 805-278 | EL RIO | 2319 | — | — |
| 805-280 | SANBARBARA | 2319 | — | Yes |
| 805-287 | SANTAMARIA | 2319 | 2008-01-25 | Yes |
| 805-332 | SANTAMARIA | 2319 | 2011-03-17 | Yes |
| 805-335 | SANBARBARA | 2319 | 2011-04-04 | Yes |
| 805-343 | GUADALUPE | 2319 | — | Yes |
| 805-344 | LOS ALAMOS | 2319 | — | Yes |
| 805-345 | SANTAMARIA | 2319 | — | Yes |
| 805-346 | SANTAMARIA | 2319 | — | — |
| 805-347 | SANTAMARIA | 2319 | — | — |
| 805-348 | SANTAMARIA | 2319 | — | Yes |
| 805-349 | SANTAMARIA | 2319 | — | — |
| 805-351 | EL RIO | 2319 | — | Yes |
| 805-352 | SANTAMARIA | 2319 | — | — |
| 805-370 | THOUSAOAKS | 2319 | — | — |
| 805-371 | THOUSAOAKS | 2319 | — | — |
| 805-372 | THOUSAOAKS | 2319 | — | Yes |
| 805-373 | THOUSAOAKS | 2319 | — | — |
| 805-374 | THOUSAOAKS | 2319 | — | — |
| 805-375 | NEWBURYPRK | 2319 | — | — |
| 805-376 | NEWBURYPRK | 2319 | — | — |
| 805-379 | THOUSAOAKS | 2319 | — | — |
| 805-381 | THOUSAOAKS | 2319 | — | Yes |
| 805-382 | OXNARD | 2319 | — | — |
| 805-383 | CAMARILLO | 2319 | — | — |
| 805-384 | CAMARILLO | 2319 | — | — |
| 805-385 | OXNARD | 2319 | — | — |
| 805-386 | SOMIS | 2319 | — | Yes |
| 805-388 | CAMARILLO | 2319 | — | — |
| 805-389 | CAMARILLO | 2319 | — | — |
| 805-445 | CAMARILLO | 2319 | — | — |
| 805-446 | THOUSAOAKS | 2319 | — | — |
| 805-449 | THOUSAOAKS | 2319 | — | — |
| 805-463 | PARKFIELD | 4420 | — | Yes |
| 805-467 | SAN MIGUEL | 4420 | — | Yes |
| 805-480 | NEWBURYPRK | 2319 | — | — |
| 805-482 | CAMARILLO | 2319 | — | — |
| 805-483 | OXNARD | 2319 | — | — |
| 805-484 | CAMARILLO | 2319 | — | — |
| 805-485 | EL RIO | 2319 | — | — |
| 805-486 | OXNARD | 2319 | — | — |
| 805-487 | OXNARD | 2319 | — | — |
| 805-488 | POINT MUGU | 2319 | — | — |
| 805-491 | CONEJO | 2319 | — | Yes |
| 805-492 | CONEJO | 2319 | — | — |
| 805-493 | CONEJO | 2319 | — | — |
| 805-494 | THOUSAOAKS | 2319 | — | Yes |
| 805-495 | THOUSAOAKS | 2319 | — | — |
| 805-496 | THOUSAOAKS | 2319 | — | — |
| 805-497 | THOUSAOAKS | 2319 | — | — |
| 805-498 | NEWBURYPRK | 2319 | — | — |
| 805-499 | NEWBURYPRK | 2319 | — | — |
| 805-525 | SANTAPAULA | 2319 | — | — |
| 805-557 | THOUSAOAKS | 2319 | — | Yes |
| 805-560 | SANBARBARA | 2319 | — | — |
| 805-562 | SANBARBARA | 2319 | — | Yes |
| 805-563 | SANBARBARA | 2319 | — | — |
| 805-564 | SANBARBARA | 2319 | — | — |
| 805-565 | SANBARBARA | 2319 | — | — |
| 805-566 | CARPINTRIA | 2319 | — | — |
| 805-567 | GAVIOTA | 2319 | — | Yes |
| 805-568 | SANBARBARA | 2319 | — | Yes |
| 805-569 | SANBARBARA | 2319 | — | — |
| 805-571 | SANBARBARA | 2319 | — | Yes |
| 805-590 | CONEJO | 2319 | — | Yes |
| 805-604 | EL RIO | 2319 | — | Yes |
| 805-614 | SANTAMARIA | 2319 | — | Yes |
| 805-681 | SANBARBARA | 2319 | — | — |
| 805-682 | SANBARBARA | 2319 | — | — |
| 805-683 | SANBARBARA | 2319 | — | — |
| 805-684 | CARPINTRIA | 2319 | — | — |
| 805-685 | SANBARBARA | 2319 | — | — |
| 805-686 | SANTA YNEZ | 2319 | — | — |
| 805-687 | SANBARBARA | 2319 | — | — |
| 805-688 | SANTA YNEZ | 2319 | — | — |
| 805-691 | SANTA YNEZ | 2319 | — | Yes |
| 805-692 | SANBARBARA | 2319 | — | — |
| 805-693 | SANTA YNEZ | 2319 | — | Yes |
| 805-695 | SANBARBARA | 2319 | — | Yes |
| 805-696 | SANBARBARA | 2319 | — | Yes |
| 805-730 | SANBARBARA | 2319 | — | Yes |
| 805-733 | LOMPOC | 2319 | — | Yes |
| 805-734 | LOMPOC | 2319 | — | Yes |
| 805-735 | LOMPOC | 2319 | — | — |
| 805-736 | LOMPOC | 2319 | — | — |
| 805-737 | LOMPOC | 2319 | — | — |
| 805-738 | CAMARILLO | 2319 | — | Yes |
| 805-739 | SANTAMARIA | 2319 | — | — |
| 805-740 | LOMPOC | 2319 | — | — |
| 805-742 | LOMPOC | 2319 | — | Yes |
| 805-745 | CARPINTRIA | 2319 | — | 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.