All assignees
800 prefixes in 310 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 310-200 | CMTN GRDN | 6010 | 2001-04-19 | — |
| 310-201 | BEVERLYHLS | 9740 | — | — |
| 310-202 | CULVERCITY | 9740 | — | — |
| 310-203 | BEVERLYHLS | 9740 | — | — |
| 310-204 | CULVERCITY | 9740 | — | — |
| 310-205 | BEVERLYHLS | 9740 | — | — |
| 310-206 | W ANGELES | 2319 | — | — |
| 310-207 | W ANGELES | 2319 | — | — |
| 310-208 | W ANGELES | 2319 | — | Yes |
| 310-209 | W ANGELES | 2319 | — | Yes |
| 310-210 | W ANGELES | 6010 | — | — |
| 310-211 | XXXXXXXXXX | MULT | — | — |
| 310-212 | TORRANCE | 9740 | — | — |
| 310-213 | CMTN GRDN | 6529 | — | Yes |
| 310-214 | REDONDO | 2319 | — | — |
| 310-215 | INGLEWOOD | 9740 | — | — |
| 310-216 | INGLEWOOD | 9740 | — | Yes |
| 310-217 | CMTN GRDN | 9740 | — | — |
| 310-218 | TORRANCE | 7229 | — | Yes |
| 310-219 | HAWTHORNE | 9740 | — | Yes |
| 310-220 | HAWTHORNE | 7229 | — | Yes |
| 310-221 | SAN PEDRO | 9740 | — | Yes |
| 310-222 | TORRANCE | 9740 | — | — |
| 310-223 | CMTN CMTN | 9740 | — | — |
| 310-224 | TORRANCE | 9740 | — | — |
| 310-225 | CMTN GRDN | 9740 | — | Yes |
| 310-226 | BEVERLYHLS | 9740 | — | — |
| 310-227 | EL SEGUNDO | 6529 | 2001-05-03 | Yes |
| 310-228 | BEVERLYHLS | 7139 | — | Yes |
| 310-229 | BEVERLYHLS | 9740 | — | — |
| 310-230 | SNMN SNMN | 2319 | — | Yes |
| 310-231 | W ANGELES | 2319 | — | — |
| 310-232 | SNMN SNMN | 6630 | — | — |
| 310-233 | SAN PEDRO | 9740 | — | — |
| 310-234 | W ANGELES | 2319 | — | — |
| 310-235 | W ANGELES | 2319 | — | — |
| 310-236 | SNMN SNMN | 6630 | — | — |
| 310-237 | CULVERCITY | 7139 | — | Yes |
| 310-238 | SNMN SNMN | 6630 | — | — |
| 310-239 | SNMN SNMN | 6630 | — | — |
| 310-240 | CMTN GRDN | 6630 | — | — |
| 310-241 | SAN PEDRO | 9740 | — | Yes |
| 310-242 | INGLEWOOD | 7139 | — | Yes |
| 310-243 | CMTN GRDN | 9740 | — | Yes |
| 310-244 | CULVERCITY | 9740 | — | — |
| 310-245 | CMTN GRDN | 6010 | 2001-04-19 | — |
| 310-246 | BEVERLYHLS | 9740 | — | — |
| 310-247 | BEVERLYHLS | 9740 | — | — |
| 310-248 | BEVERLYHLS | 9740 | — | Yes |
| 310-249 | CMTN GRDN | 6630 | — | — |
| 310-250 | CMTN GRDN | 6630 | — | — |
| 310-251 | CMTN GRDN | 6010 | 2001-04-19 | — |
| 310-252 | EL SEGUNDO | 9740 | — | — |
| 310-253 | CULVERCITY | 9740 | — | — |
| 310-254 | W ANGELES | 7240 | — | Yes |
| 310-255 | SNMN SNMN | 7480 | — | — |
| 310-256 | INGLEWOOD | 6006 | 2005-03-22 | Yes |
| 310-257 | LOMITA | 9740 | — | — |
| 310-258 | INGLEWOOD | 9740 | — | — |
| 310-259 | INGLEWOOD | 6010 | — | — |
| 310-260 | SNMN SNMN | 2319 | — | — |
| 310-261 | SNMN SNMN | 899D | — | Yes |
| 310-262 | SNMN SNMN | 6630 | — | — |
| 310-263 | HAWTHORNE | 9740 | — | Yes |
| 310-264 | SNMN SNMN | 2319 | — | — |
| 310-265 | REDONDO | 2319 | — | Yes |
| 310-266 | SNMN SNMN | 6010 | — | — |
| 310-267 | SNMN SNMN | 2319 | — | — |
| 310-268 | W ANGELES | 2319 | — | — |
| 310-269 | BEVERLYHLS | 9262 | 2023-06-22 | Yes |
| 310-270 | BEVERLYHLS | 9740 | — | Yes |
| 310-271 | BEVERLYHLS | 9740 | — | — |
| 310-272 | BEVERLYHLS | 6529 | — | Yes |
| 310-273 | BEVERLYHLS | 9740 | — | — |
| 310-274 | BEVERLYHLS | 9740 | — | — |
| 310-275 | BEVERLYHLS | 9740 | — | — |
| 310-276 | BEVERLYHLS | 9740 | — | — |
| 310-277 | BEVERLYHLS | 9740 | — | — |
| 310-278 | BEVERLYHLS | 9740 | — | — |
| 310-279 | BEVERLYHLS | 9740 | — | Yes |
| 310-280 | CULVERCITY | 9740 | — | Yes |
| 310-281 | BEVERLYHLS | 9740 | — | — |
| 310-282 | BEVERLYHLS | 9740 | — | — |
| 310-283 | CMTN GRDN | 6010 | 2001-04-19 | — |
| 310-284 | BEVERLYHLS | 9740 | — | — |
| 310-285 | BEVERLYHLS | 9740 | — | — |
| 310-286 | BEVERLYHLS | 9740 | — | — |
| 310-287 | CULVERCITY | 9740 | — | — |
| 310-288 | BEVERLYHLS | 9740 | — | — |
| 310-289 | BEVERLYHLS | 9740 | — | Yes |
| 310-290 | BEVERLYHLS | 6529 | 2020-12-11 | Yes |
| 310-291 | CMTN GRDN | 6010 | 2001-04-19 | — |
| 310-292 | CMTN GRDN | 6010 | 2001-04-19 | — |
| 310-293 | CMTN GRDN | 6010 | — | — |
| 310-294 | TORRANCE | 8826 | 2005-09-29 | Yes |
| 310-295 | W ANGELES | 8826 | 2005-09-29 | Yes |
| 310-296 | CMTN GRDN | 6906 | — | — |
| 310-297 | HAWTHORNE | 9740 | — | Yes |
| 310-298 | CMTN GRDN | 6630 | — | — |
| 310-299 | BEVERLYHLS | 8826 | 2012-08-13 | 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.