FRONTIER CALIFORNIA INC.
37 prefixes in 818 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 818-221 | SNFN SPLV | 2319 | — | Yes |
| 818-270 | SNFN SNFN | 2319 | — | Yes |
| 818-271 | SNFN GRHL | 2319 | — | Yes |
| 818-272 | SNFN PACM | 2319 | — | Yes |
| 818-273 | SUNLD TJNG | 2319 | — | Yes |
| 818-352 | SUNLD TJNG | 2319 | — | — |
| 818-353 | SUNLD TJNG | 2319 | — | — |
| 818-360 | SNFN GRHL | 2319 | — | — |
| 818-361 | SNFN SNFN | 2319 | — | — |
| 818-362 | SNFN SNFN | 2319 | — | — |
| 818-363 | SNFN GRHL | 2319 | — | — |
| 818-364 | SNFN SNFN | 2319 | — | — |
| 818-365 | SNFN SNFN | 2319 | — | — |
| 818-366 | SNFN GRHL | 2319 | — | — |
| 818-367 | SNFN SNFN | 2319 | — | — |
| 818-368 | SNFN GRHL | 2319 | — | — |
| 818-446 | SUNLD TJNG | 2319 | — | Yes |
| 818-686 | SNFN PACM | 2319 | — | Yes |
| 818-830 | SNFN SPLV | 2319 | — | — |
| 818-831 | SNFN GRHL | 2319 | — | — |
| 818-832 | SNFN GRHL | 2319 | — | — |
| 818-833 | SNFN SNFN | 2319 | — | — |
| 818-834 | SNFN PACM | 2319 | — | — |
| 818-837 | SNFN SNFN | 2319 | — | — |
| 818-838 | SNFN SNFN | 2319 | — | Yes |
| 818-890 | SNFN PACM | 2319 | — | — |
| 818-891 | SNFN SPLV | 2319 | — | — |
| 818-892 | SNFN SPLV | 2319 | — | — |
| 818-893 | SNFN SPLV | 2319 | — | — |
| 818-894 | SNFN SPLV | 2319 | — | — |
| 818-895 | SNFN SPLV | 2319 | — | — |
| 818-896 | SNFN PACM | 2319 | — | — |
| 818-897 | SNFN PACM | 2319 | — | — |
| 818-898 | SNFN SNFN | 2319 | — | — |
| 818-899 | SNFN PACM | 2319 | — | — |
| 818-920 | SNFN SPLV | 2319 | — | Yes |
| 818-951 | SUNLD TJNG | 2319 | — | — |
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.