All assignees
709 prefixes in 951 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 951-976 | — | — | ||
| 951-977 | ARLINGTON | 7718 | — | Yes |
| 951-981 | LAKEVIEWNU | 793K | 2013-03-22 | Yes |
| 951-987 | CORONA | 649C | — | Yes |
| 951-988 | MORENO | 965H | 2019-05-13 | Yes |
| 951-990 | RIVERSIDE | 6006 | — | — |
| 951-992 | MORENO | 6529 | 2005-08-01 | Yes |
| 951-998 | HEMT HMLD | 516J | 2022-02-24 | Yes |
| 951-999 | MORENO | 649C | — | 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.