All assignees
800 prefixes in 310 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 310-900 | CMTN CMTN | 9740 | — | Yes |
| 310-901 | TORRANCE | 6529 | — | Yes |
| 310-902 | SNMN MRVS | 6529 | 2001-08-22 | Yes |
| 310-903 | W ANGELES | 6006 | — | Yes |
| 310-904 | CULVERCITY | 671J | — | Yes |
| 310-905 | SNMN MRVS | 6006 | 2013-01-14 | Yes |
| 310-906 | EL SEGUNDO | 515J | — | Yes |
| 310-907 | SNMN SNMN | 7229 | — | Yes |
| 310-908 | INGLEWOOD | 6010 | — | — |
| 310-909 | W ANGELES | 7229 | — | Yes |
| 310-910 | INGLEWOOD | 6529 | — | Yes |
| 310-911 | XXXXXXXXXX | MULT | — | — |
| 310-912 | INGLEWOOD | 6006 | 2011-08-23 | Yes |
| 310-913 | SNMN MRVS | 6006 | — | Yes |
| 310-914 | W ANGELES | 2319 | — | — |
| 310-915 | SNMN MRVS | 2319 | — | — |
| 310-916 | CULVERCITY | 7718 | — | Yes |
| 310-917 | SNMN SNMN | 2319 | — | — |
| 310-918 | CMTN GRDN | 6010 | — | — |
| 310-919 | MALIBU | 649C | — | Yes |
| 310-920 | CMTN GRDN | 6529 | 2001-10-18 | — |
| 310-921 | REDONDO | 2319 | — | Yes |
| 310-922 | SNMN MRVS | 6006 | — | — |
| 310-923 | W ANGELES | 6010 | 2002-03-11 | Yes |
| 310-924 | MALIBU | 899D | 2001-04-19 | Yes |
| 310-925 | BEVERLYHLS | 6529 | 2001-12-26 | Yes |
| 310-926 | BEVERLYHLS | 6010 | 2001-07-10 | Yes |
| 310-927 | BEVERLYHLS | 6529 | — | Yes |
| 310-928 | CMTN CMTN | 7229 | — | Yes |
| 310-929 | AVALON | 515J | — | Yes |
| 310-930 | CMTN GRDN | 899D | 2001-06-26 | Yes |
| 310-931 | TORRANCE | 9748 | — | — |
| 310-932 | LAKEWOOD | 6630 | — | — |
| 310-933 | CMTN CMTN | 8826 | — | Yes |
| 310-934 | CULVERCITY | 9748 | — | — |
| 310-935 | SAN PEDRO | 649C | 2011-02-22 | Yes |
| 310-936 | CULVERCITY | 6529 | 2001-02-28 | Yes |
| 310-937 | REDONDO | 2319 | — | — |
| 310-938 | TORRANCE | 6010 | — | — |
| 310-939 | REDONDO | 2319 | — | — |
| 310-940 | CMTN GRDN | 6010 | 2001-08-22 | — |
| 310-941 | CMTN GRDN | 6010 | 2001-07-10 | — |
| 310-942 | CMTN GRDN | 6967 | 2002-04-15 | — |
| 310-943 | W ANGELES | 649C | — | Yes |
| 310-944 | REDONDO | 2319 | — | Yes |
| 310-945 | CULVERCITY | 7229 | — | Yes |
| 310-946 | INGLEWOOD | 899D | 2002-06-14 | Yes |
| 310-947 | REDONDO | 6529 | 2002-06-14 | Yes |
| 310-948 | W ANGELES | 6010 | 2002-07-29 | Yes |
| 310-949 | AVALON | 7894 | — | — |
| 310-950 | — | — | ||
| 310-951 | TORRANCE | 6529 | 2002-08-21 | — |
| 310-952 | SAN PEDRO | 9740 | — | — |
| 310-953 | TORRANCE | 7240 | — | Yes |
| 310-954 | W ANGELES | 7240 | — | Yes |
| 310-955 | EL SEGUNDO | 7240 | — | Yes |
| 310-956 | HAWTHORNE | 7240 | — | Yes |
| 310-957 | INGLEWOOD | 7240 | — | Yes |
| 310-958 | — | — | ||
| 310-959 | — | — | ||
| 310-960 | CMTN GRDN | 6630 | — | — |
| 310-961 | TORRANCE | 6006 | 2005-08-03 | Yes |
| 310-962 | BEVERLYHLS | 6010 | 2001-04-19 | — |
| 310-963 | SNMN MRVS | 6006 | — | — |
| 310-964 | EL SEGUNDO | 9740 | — | — |
| 310-965 | CMTN GRDN | 9740 | — | Yes |
| 310-966 | W ANGELES | 2319 | — | Yes |
| 310-967 | BEVERLYHLS | 9740 | — | Yes |
| 310-968 | SNMN MRVS | 6006 | — | — |
| 310-969 | BEVERLYHLS | 7139 | — | — |
| 310-970 | HAWTHORNE | 9740 | — | Yes |
| 310-971 | SAN PEDRO | 7240 | — | Yes |
| 310-972 | TORRANCE | 9740 | — | Yes |
| 310-973 | HAWTHORNE | 9740 | — | — |
| 310-974 | TORRANCE | 7240 | — | Yes |
| 310-975 | BEVERLYHLS | 7240 | — | Yes |
| 310-976 | BEVERLYHLS | 7894 | 2011-06-08 | — |
| 310-977 | CMTN GRDN | 6010 | 2001-04-19 | — |
| 310-978 | HAWTHORNE | 9740 | — | Yes |
| 310-979 | W ANGELES | 2319 | — | — |
| 310-980 | SNMN SNMN | 6529 | 2002-02-21 | — |
| 310-981 | INGLEWOOD | 7139 | — | Yes |
| 310-982 | SAN PEDRO | 6529 | 2005-08-30 | Yes |
| 310-983 | W ANGELES | 7480 | — | Yes |
| 310-984 | SAN PEDRO | 8826 | 2004-11-17 | Yes |
| 310-985 | SNMN SNMN | 6529 | 2002-10-17 | Yes |
| 310-986 | LOMITA | 6529 | 2005-01-03 | Yes |
| 310-987 | SAN PEDRO | 6529 | 2005-02-14 | Yes |
| 310-988 | INGLEWOOD | 6006 | 2005-09-08 | Yes |
| 310-989 | CMTN GRDN | 6010 | — | — |
| 310-990 | BEVERLYHLS | 6010 | 2001-04-19 | — |
| 310-991 | CMTN GRDN | 6006 | — | — |
| 310-992 | SNMN SNMN | 6630 | — | — |
| 310-993 | BEVERLYHLS | 6010 | 2001-04-19 | — |
| 310-994 | BEVERLYHLS | 6010 | 2001-04-19 | — |
| 310-995 | CMTN GRDN | 6006 | — | — |
| 310-996 | W ANGELES | 2319 | — | — |
| 310-997 | LOMITA | 6006 | — | Yes |
| 310-998 | SNMN SNMN | 2319 | — | Yes |
| 310-999 | CMTN GRDN | 6529 | — | 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.