All assignees
577 prefixes in 858 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 858-678 | LA JOLLA | 9740 | — | — |
| 858-679 | POWAY | 9740 | — | — |
| 858-682 | POWAY | 6529 | — | Yes |
| 858-683 | RNCHOBRNDO | 7379 | — | Yes |
| 858-684 | SNDG MRMS | 9740 | — | Yes |
| 858-687 | POWAY | 516J | 2022-01-19 | Yes |
| 858-688 | SNDG MRMS | 5562 | 2001-09-24 | Yes |
| 858-689 | SNDG MRMS | 9740 | — | — |
| 858-692 | LA JOLLA | 6006 | 2002-08-14 | Yes |
| 858-693 | SNDG MRMS | 9740 | — | — |
| 858-694 | SNDG LVTA | 9740 | — | — |
| 858-695 | SNDG MRMS | 9740 | — | Yes |
| 858-699 | LA JOLLA | 6010 | 2001-11-07 | Yes |
| 858-700 | — | — | ||
| 858-703 | DEL MAR | 7240 | — | Yes |
| 858-704 | DEL MAR | 7240 | — | Yes |
| 858-705 | RNCHOBRNDO | 6010 | — | Yes |
| 858-707 | SNDG LVTA | 671J | — | Yes |
| 858-711 | XXXXXXXXXX | MULT | — | — |
| 858-712 | SNDG LVTA | 7240 | — | — |
| 858-713 | LA JOLLA | 671J | — | Yes |
| 858-715 | SNDG LVTA | 9740 | — | — |
| 858-716 | RNCHOBRNDO | 7240 | — | Yes |
| 858-717 | SNDG LVTA | 6529 | 2002-08-30 | Yes |
| 858-720 | DEL MAR | 9740 | — | — |
| 858-722 | POWAY | 6010 | — | — |
| 858-723 | LA MESA | 732J | — | Yes |
| 858-724 | DEL MAR | 7240 | — | Yes |
| 858-726 | POWAY | 7240 | — | Yes |
| 858-727 | SNDG SNDG | 516J | 2020-11-11 | Yes |
| 858-728 | SNDG MRMS | 6630 | — | — |
| 858-729 | LA JOLLA | 9740 | — | Yes |
| 858-731 | LA JOLLA | 7240 | — | Yes |
| 858-732 | LA JOLLA | 649C | — | Yes |
| 858-733 | RNCHOPNQTS | 6529 | 2002-08-30 | Yes |
| 858-735 | POWAY | 6006 | — | — |
| 858-736 | LA JOLLA | 7718 | — | Yes |
| 858-737 | SNDG LVTA | 7240 | — | Yes |
| 858-740 | SNDG MRMS | 7421 | — | Yes |
| 858-742 | SNDG LVTA | 516J | 2022-01-12 | Yes |
| 858-744 | SNDG SNDG | 965H | 2021-04-23 | Yes |
| 858-746 | POWAY | 7718 | — | Yes |
| 858-748 | POWAY | 9740 | — | — |
| 858-750 | LA JOLLA | 6006 | 2006-07-18 | Yes |
| 858-751 | SNDG LVTA | 671J | — | Yes |
| 858-752 | LA JOLLA | 6529 | — | Yes |
| 858-753 | RNCHOBRNDO | 7240 | — | Yes |
| 858-754 | LA JOLLA | 7718 | — | Yes |
| 858-755 | DEL MAR | 9740 | — | — |
| 858-756 | RNCHOSANFE | 9740 | — | — |
| 858-757 | SNDG MRMS | 649C | 2016-01-29 | Yes |
| 858-758 | EL CAJON | 965H | 2020-09-17 | Yes |
| 858-759 | RNCHOSANFE | 9740 | — | — |
| 858-761 | SNDG MRMS | 7229 | — | Yes |
| 858-762 | POWAY | 8826 | — | Yes |
| 858-764 | DEL MAR | 829J | — | Yes |
| 858-765 | LA JOLLA | 7147 | 2021-08-10 | Yes |
| 858-766 | LA JOLLA | 649C | 2012-11-07 | Yes |
| 858-768 | LA JOLLA | 394L | — | Yes |
| 858-769 | SNDG LVTA | 7379 | — | Yes |
| 858-771 | RNCHOSANFE | 516C | 2004-11-05 | Yes |
| 858-774 | RNCHOBRNDO | 6010 | — | — |
| 858-775 | LA JOLLA | 6006 | — | — |
| 858-776 | RNCHOBRNDO | 6529 | 2002-08-30 | Yes |
| 858-777 | LA JOLLA | 671J | — | — |
| 858-779 | RNCHOSANFE | 7718 | — | Yes |
| 858-780 | RNCHOPNQTS | 9740 | — | Yes |
| 858-784 | LA JOLLA | 9740 | — | Yes |
| 858-786 | NATIONALCY | 965H | 2021-03-16 | Yes |
| 858-787 | PINEVALLEY | 516J | 2022-02-17 | Yes |
| 858-788 | LA JOLLA | 965H | 2019-03-19 | Yes |
| 858-789 | SNDG SNDG | 965H | 2021-01-04 | Yes |
| 858-790 | SNDG MRMS | 7147 | — | Yes |
| 858-792 | DEL MAR | 9740 | — | — |
| 858-793 | DEL MAR | 9740 | — | — |
| 858-794 | DEL MAR | 9740 | — | — |
| 858-795 | LA JOLLA | 7147 | — | — |
| 858-798 | RNCHOBRNDO | 7718 | — | Yes |
| 858-799 | LA JOLLA | 7240 | — | Yes |
| 858-800 | SNDG MRMS | 981E | — | Yes |
| 858-805 | SNDG MRMS | 7718 | — | Yes |
| 858-808 | NATIONALCY | 965H | 2022-02-18 | Yes |
| 858-810 | SNDG LVTA | 7147 | — | Yes |
| 858-811 | XXXXXXXXXX | MULT | — | — |
| 858-812 | LA JOLLA | 7147 | — | — |
| 858-815 | RNCHOBRNDO | 7379 | — | Yes |
| 858-822 | LA JOLLA | 9740 | — | Yes |
| 858-824 | LA JOLLA | 9740 | — | — |
| 858-826 | LA JOLLA | 9740 | — | — |
| 858-828 | SNDG SNDG | 965H | 2022-02-18 | Yes |
| 858-829 | POWAY | 6529 | — | Yes |
| 858-831 | SNDG MRMS | 9740 | — | Yes |
| 858-832 | RNCHOSANFE | 394L | — | Yes |
| 858-833 | SNDG SNDG | 965H | 2020-09-17 | Yes |
| 858-834 | RNCHOPNQTS | 8826 | — | Yes |
| 858-836 | SNDG LVTA | 7240 | — | Yes |
| 858-837 | RNCHOPNQTS | 6010 | — | Yes |
| 858-838 | CAMPO | 965H | 2022-05-10 | Yes |
| 858-842 | POWAY | 394L | — | Yes |
| 858-844 | EL CAJON | 965H | 2021-08-05 | 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.