All assignees
108 prefixes in 820 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 820-911 | XXXXXXXXXX | MULT | — | — |
| 820-946 | SANTAMARIA | 965H | 2020-07-10 | Yes |
| 820-950 | — | — | ||
| 820-958 | — | — | ||
| 820-959 | — | — | ||
| 820-976 | — | — | ||
| 820-998 | ATASCADERO | 649C | 2024-06-13 | Yes |
| 820-999 | OXNARD | 965H | 2019-01-22 | 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.