All assignees
577 prefixes in 858 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 858-845 | LA JOLLA | 7718 | — | — |
| 858-847 | DEL MAR | 9740 | — | Yes |
| 858-848 | POWAY | 7147 | — | Yes |
| 858-855 | EL CAJON | 965H | 2021-04-23 | Yes |
| 858-858 | SNDG SNDG | 624H | 2023-05-22 | Yes |
| 858-859 | POWAY | 7240 | — | Yes |
| 858-860 | SNDG MRMS | 671J | — | Yes |
| 858-863 | SNDG MRMS | 8826 | — | Yes |
| 858-864 | LA JOLLA | 6529 | — | Yes |
| 858-866 | LA JOLLA | 671J | — | Yes |
| 858-867 | SNDG SNDG | 965H | 2020-07-10 | Yes |
| 858-868 | SNDG SNDG | 321J | 2018-12-19 | Yes |
| 858-869 | LA JOLLA | 671J | — | Yes |
| 858-874 | SNDG LVTA | 9740 | — | — |
| 858-875 | LA JOLLA | 671J | — | — |
| 858-876 | DEL MAR | 8826 | — | Yes |
| 858-877 | SNDG MRMS | 7240 | — | Yes |
| 858-878 | LA MESA | 965H | 2022-02-18 | Yes |
| 858-879 | RNCHOBRNDO | 7240 | — | Yes |
| 858-880 | SNDG MRMS | 7240 | — | Yes |
| 858-881 | SNDG SNDG | 193E | 2026-05-20 | Yes |
| 858-882 | LA JOLLA | 7718 | — | Yes |
| 858-883 | POWAY | 6529 | — | Yes |
| 858-886 | LA JOLLA | 9740 | — | Yes |
| 858-888 | LA JOLLA | 981E | — | Yes |
| 858-898 | CORONADO | 965H | 2022-02-18 | Yes |
| 858-899 | EL CAJON | 965H | 2021-01-04 | Yes |
| 858-900 | LA JOLLA | 649C | — | Yes |
| 858-901 | RNCHOPNQTS | 7240 | — | Yes |
| 858-902 | CHULAVISTA | 6529 | 2024-05-31 | Yes |
| 858-905 | RNCHOPNQTS | 7240 | — | Yes |
| 858-909 | LA JOLLA | 9740 | — | Yes |
| 858-910 | CHULAVISTA | 649C | 2021-04-01 | Yes |
| 858-911 | XXXXXXXXXX | MULT | — | — |
| 858-914 | RNCHOSANFE | 8826 | — | Yes |
| 858-922 | LA JOLLA | 6006 | — | — |
| 858-923 | RNCHOSANFE | 7379 | — | Yes |
| 858-924 | RNCHOBRNDO | 9740 | — | Yes |
| 858-925 | DEL MAR | 8826 | — | Yes |
| 858-926 | LA JOLLA | 6006 | — | Yes |
| 858-927 | RNCHOBRNDO | 649C | — | Yes |
| 858-933 | DEL MAR | 965H | 2021-08-05 | Yes |
| 858-935 | SNDG MRMS | 7240 | — | Yes |
| 858-939 | SNDG LVTA | 9740 | — | Yes |
| 858-942 | RNCHOBRNDO | 7147 | — | — |
| 858-943 | RNCHOBRNDO | 7718 | — | Yes |
| 858-944 | SNDG LVTA | 965H | 2021-07-13 | Yes |
| 858-945 | LA JOLLA | 6006 | — | — |
| 858-946 | RNCHOBRNDO | 7240 | — | Yes |
| 858-947 | DEL MAR | 7379 | — | Yes |
| 858-950 | — | — | ||
| 858-951 | RNCHOSANFE | 8826 | — | Yes |
| 858-952 | LA JOLLA | 8826 | 2005-12-19 | Yes |
| 858-955 | PINEVALLEY | 965H | 2020-09-17 | Yes |
| 858-956 | POWAY | 7379 | — | Yes |
| 858-958 | — | — | ||
| 858-959 | — | — | ||
| 858-964 | LA JOLLA | 829J | — | Yes |
| 858-966 | SNDG LVTA | 9740 | — | Yes |
| 858-967 | LA JOLLA | 6529 | — | Yes |
| 858-974 | SNDG LVTA | 9740 | — | — |
| 858-976 | — | — | ||
| 858-977 | DEL MAR | 965H | 2020-03-27 | Yes |
| 858-978 | LA JOLLA | 7147 | 2023-10-25 | Yes |
| 858-979 | LA JOLLA | 7147 | 2023-10-30 | Yes |
| 858-980 | LA JOLLA | 7147 | 2023-10-30 | Yes |
| 858-981 | LA JOLLA | 7147 | 2023-10-30 | Yes |
| 858-982 | LA JOLLA | 7147 | 2023-10-30 | Yes |
| 858-983 | LA JOLLA | 7147 | 2023-10-30 | Yes |
| 858-984 | LA JOLLA | 7147 | 2023-10-30 | Yes |
| 858-985 | LA JOLLA | 7147 | 2023-10-30 | Yes |
| 858-986 | LA JOLLA | 7147 | 2023-10-30 | Yes |
| 858-987 | SNDG LVTA | 649C | — | Yes |
| 858-988 | SNDG SNDG | 965H | 2019-03-19 | Yes |
| 858-989 | LA JOLLA | 7147 | 2023-10-30 | Yes |
| 858-997 | LA JOLLA | 6006 | 2007-08-17 | Yes |
| 858-999 | LA JOLLA | 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.