All assignees
800 prefixes in 310 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 310-700 | — | — | ||
| 310-701 | CMTN GRDN | 6006 | — | — |
| 310-702 | CMTN GRDN | 6006 | — | — |
| 310-703 | INGLEWOOD | 6529 | 2005-05-10 | Yes |
| 310-704 | CMTN GRDN | 6529 | — | Yes |
| 310-705 | CMTN CMTN | 9262 | — | Yes |
| 310-706 | HAWTHORNE | 671J | — | Yes |
| 310-707 | SAN PEDRO | 671J | — | Yes |
| 310-708 | MALIBU | 649C | 2023-06-26 | Yes |
| 310-709 | W ANGELES | 6529 | — | Yes |
| 310-710 | CMTN GRDN | 6006 | — | — |
| 310-711 | XXXXXXXXXX | MULT | — | — |
| 310-712 | BEVERLYHLS | 9740 | — | — |
| 310-713 | CMTN GRDN | 6006 | — | — |
| 310-714 | CMTN GRDN | 6529 | — | Yes |
| 310-715 | CMTN GRDN | 9740 | — | Yes |
| 310-716 | CMTN GRDN | 6630 | — | — |
| 310-717 | BEVERLYHLS | 6010 | 2001-04-19 | — |
| 310-718 | CMTN GRDN | 6630 | — | — |
| 310-719 | CMTN GRDN | 9740 | — | Yes |
| 310-720 | CMTN GRDN | 6006 | — | — |
| 310-721 | BEVERLYHLS | 6010 | 2001-04-19 | — |
| 310-722 | CMTN GRDN | 6529 | — | Yes |
| 310-723 | CMTN GRDN | 6630 | — | — |
| 310-724 | BEVERLYHLS | 9740 | — | — |
| 310-725 | HAWTHORNE | 9740 | — | Yes |
| 310-726 | EL SEGUNDO | 9740 | — | — |
| 310-727 | HAWTHORNE | 9740 | — | — |
| 310-728 | BEVERLYHLS | 7240 | — | Yes |
| 310-729 | BEVERLYHLS | 6010 | 2001-04-19 | — |
| 310-730 | CULVERCITY | 981E | 2012-08-13 | Yes |
| 310-731 | SAN PEDRO | 649C | 2025-11-20 | Yes |
| 310-732 | SAN PEDRO | 9740 | — | — |
| 310-733 | CULVERCITY | 8826 | — | Yes |
| 310-734 | BEVERLYHLS | 7240 | — | Yes |
| 310-735 | CMTN CMTN | 7240 | — | Yes |
| 310-736 | CULVERCITY | 7240 | — | Yes |
| 310-737 | SNMN MRVS | 2319 | — | Yes |
| 310-738 | CMTN GRDN | 6006 | — | — |
| 310-739 | BEVERLYHLS | 6010 | 2001-04-19 | — |
| 310-740 | SNMN MRVS | 6006 | — | Yes |
| 310-741 | SNMN MRVS | 6006 | — | Yes |
| 310-742 | CMTN CMTN | 649C | — | Yes |
| 310-743 | INGLEWOOD | 7229 | — | Yes |
| 310-744 | EL SEGUNDO | 7139 | — | Yes |
| 310-745 | SNMN MRVS | 6010 | — | Yes |
| 310-746 | BEVERLYHLS | 671J | — | Yes |
| 310-747 | CMTN CMTN | 671J | — | Yes |
| 310-748 | CMTN GRDN | 6010 | — | — |
| 310-749 | CMTN GRDN | 6006 | — | — |
| 310-750 | REDONDO | 7240 | — | Yes |
| 310-751 | SNMN MRVS | 7240 | — | Yes |
| 310-752 | SNMN SNMN | 7240 | — | Yes |
| 310-753 | CMTN GRDN | 6010 | — | — |
| 310-754 | SNMN MRVS | 7139 | — | Yes |
| 310-755 | TORRANCE | 671J | — | Yes |
| 310-756 | CMTN GRDN | 7229 | — | Yes |
| 310-757 | CMTN CMTN | 6529 | 2024-02-14 | Yes |
| 310-758 | SAN PEDRO | 649C | 2023-06-26 | Yes |
| 310-759 | HAWTHORNE | 649C | 2023-06-26 | Yes |
| 310-760 | EL SEGUNDO | 7229 | — | Yes |
| 310-761 | CMTN CMTN | 9740 | — | — |
| 310-762 | CMTN CMTN | 9740 | — | — |
| 310-763 | CMTN CMTN | 9740 | — | — |
| 310-764 | CMTN CMTN | 9740 | — | — |
| 310-765 | EL SEGUNDO | 7240 | — | Yes |
| 310-766 | CMTN GRDN | 899D | — | Yes |
| 310-767 | CMTN GRDN | 9740 | — | Yes |
| 310-768 | CMTN GRDN | 9740 | — | Yes |
| 310-769 | CMTN GRDN | 9740 | — | Yes |
| 310-770 | BEVERLYHLS | 6529 | — | Yes |
| 310-771 | CMTN GRDN | 9740 | — | — |
| 310-772 | BEVERLYHLS | 9740 | — | — |
| 310-773 | SNMN MRVS | 8826 | — | Yes |
| 310-774 | MALIBU | 6529 | — | Yes |
| 310-775 | W ANGELES | 8826 | 2005-12-29 | Yes |
| 310-776 | SNMN MRVS | 6006 | — | Yes |
| 310-777 | BEVERLYHLS | 9740 | — | Yes |
| 310-778 | CMTN GRDN | 9262 | — | Yes |
| 310-779 | BEVERLYHLS | 6010 | 2001-04-19 | — |
| 310-780 | CMTN GRDN | 6006 | — | — |
| 310-781 | TORRANCE | 9740 | — | Yes |
| 310-782 | TORRANCE | 9740 | — | Yes |
| 310-783 | TORRANCE | 9740 | — | — |
| 310-784 | LOMITA | 9740 | — | — |
| 310-785 | BEVERLYHLS | 9740 | — | — |
| 310-786 | BEVERLYHLS | 9740 | — | — |
| 310-787 | TORRANCE | 9740 | — | — |
| 310-788 | BEVERLYHLS | 9740 | — | — |
| 310-789 | BEVERLYHLS | 9740 | — | — |
| 310-790 | SNMN SNMN | 6630 | — | — |
| 310-791 | REDONDO | 2319 | — | — |
| 310-792 | REDONDO | 2319 | — | — |
| 310-793 | REDONDO | 2319 | — | Yes |
| 310-794 | W ANGELES | 2319 | — | — |
| 310-795 | SNMN SNMN | 6010 | 2001-04-19 | — |
| 310-796 | REDONDO | 2319 | — | Yes |
| 310-797 | EL SEGUNDO | 6906 | — | — |
| 310-798 | REDONDO | 2319 | — | — |
| 310-799 | CULVERCITY | 9748 | — | — |
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.