All assignees
577 prefixes in 858 · initial assignments from the NANPA CO code file, 09/17/2026
| NPA-NXX | Rate center | OCN | Assigned | Pooled |
|---|---|---|---|---|
| 858-200 | LA JOLLA | 671J | — | Yes |
| 858-201 | SNDG MRMS | 8826 | — | Yes |
| 858-202 | LA JOLLA | 9740 | — | Yes |
| 858-203 | LA JOLLA | 649C | 2016-01-27 | Yes |
| 858-204 | POWAY | 6006 | — | — |
| 858-205 | DEL MAR | 6529 | 2002-01-16 | Yes |
| 858-206 | POWAY | 649C | 2006-11-21 | Yes |
| 858-207 | RNCHOBRNDO | 7147 | — | Yes |
| 858-208 | POWAY | 6010 | — | Yes |
| 858-209 | DEL MAR | 6529 | 2017-05-22 | Yes |
| 858-210 | LA JOLLA | 6006 | 2008-07-21 | Yes |
| 858-211 | XXXXXXXXXX | MULT | — | — |
| 858-212 | POWAY | 6529 | — | Yes |
| 858-213 | POWAY | 6529 | — | Yes |
| 858-214 | LA JOLLA | 6529 | 2017-11-22 | Yes |
| 858-215 | RNCHOPNQTS | 9740 | 2007-03-30 | Yes |
| 858-216 | RNCHOPNQTS | 671J | — | Yes |
| 858-217 | RNCHOBRNDO | 671J | — | Yes |
| 858-218 | POWAY | 671J | — | Yes |
| 858-219 | SNDG LVTA | 6906 | — | — |
| 858-220 | LA JOLLA | 6529 | 2002-01-18 | Yes |
| 858-221 | SNDG LVTA | 649C | — | Yes |
| 858-222 | LA JOLLA | 649C | 2008-10-13 | Yes |
| 858-223 | SNDG LVTA | 649C | 2013-06-10 | Yes |
| 858-224 | LA JOLLA | 649C | — | Yes |
| 858-225 | SNDG MRMS | 7379 | — | Yes |
| 858-226 | SNDG MRMS | 6006 | 2014-09-09 | Yes |
| 858-227 | RNCHOSANFE | 7240 | — | Yes |
| 858-228 | LA JOLLA | 7240 | — | Yes |
| 858-229 | SNDG MRMS | 6006 | 2001-09-13 | — |
| 858-230 | LA JOLLA | 516C | 2011-08-23 | Yes |
| 858-231 | POWAY | 6529 | 2001-12-14 | — |
| 858-232 | LA JOLLA | 6010 | — | — |
| 858-233 | LA JOLLA | 7894 | — | — |
| 858-234 | RNCHOBRNDO | 7894 | — | — |
| 858-235 | LA JOLLA | 829J | 2019-12-23 | Yes |
| 858-236 | POWAY | 7894 | — | — |
| 858-237 | SNDG MRMS | 7894 | — | — |
| 858-238 | EL CAJON | 6010 | 2020-09-08 | Yes |
| 858-239 | SNDG MRMS | 649C | 2014-12-05 | Yes |
| 858-240 | RNCHOPNQTS | 7718 | — | Yes |
| 858-241 | LA JOLLA | 6529 | 2021-01-08 | Yes |
| 858-242 | LA JOLLA | 6010 | 2011-06-20 | Yes |
| 858-243 | POWAY | 6006 | 2001-05-17 | Yes |
| 858-244 | SNDG LVTA | 7240 | — | Yes |
| 858-245 | LA JOLLA | 6006 | 2001-09-17 | — |
| 858-246 | LA JOLLA | 7718 | 2007-07-03 | Yes |
| 858-247 | LA JOLLA | 145J | — | Yes |
| 858-248 | POWAY | 6006 | 2001-10-18 | Yes |
| 858-249 | LA JOLLA | 6010 | 2012-10-04 | Yes |
| 858-250 | LA JOLLA | 252F | — | Yes |
| 858-251 | LA JOLLA | 373F | 2012-06-29 | Yes |
| 858-252 | DEL MAR | 6529 | 2014-10-08 | Yes |
| 858-253 | SNDG MRMS | 6006 | 2015-02-16 | Yes |
| 858-254 | POWAY | 6529 | — | Yes |
| 858-255 | LA JOLLA | 7147 | 2011-02-02 | Yes |
| 858-256 | SNDG LVTA | 394L | — | Yes |
| 858-257 | LA JOLLA | 8826 | 2014-10-01 | Yes |
| 858-258 | SNDG MRMS | 8826 | 2018-06-07 | Yes |
| 858-259 | DEL MAR | 9740 | — | — |
| 858-260 | LA JOLLA | 6529 | 2013-07-22 | Yes |
| 858-261 | DEL MAR | 6529 | 2015-02-18 | Yes |
| 858-262 | SNDG LVTA | 6529 | 2015-03-11 | Yes |
| 858-263 | LA JOLLA | 793K | 2013-03-12 | Yes |
| 858-264 | SNDG LVTA | 649C | 2014-11-24 | Yes |
| 858-265 | SNDG MRMS | 6010 | 2015-07-02 | Yes |
| 858-266 | SNDG LVTA | 9740 | 2013-11-08 | Yes |
| 858-267 | SNDG MRMS | 6529 | 2015-09-25 | Yes |
| 858-268 | SNDG LVTA | 9740 | — | — |
| 858-269 | POWAY | 9740 | 2018-10-03 | Yes |
| 858-270 | LA JOLLA | 9740 | — | — |
| 858-271 | SNDG MRMS | 9740 | — | Yes |
| 858-272 | LA JOLLA | 9740 | — | — |
| 858-273 | LA JOLLA | 9740 | — | — |
| 858-274 | LA JOLLA | 9740 | — | — |
| 858-275 | SNDG MRMS | 6006 | 2014-04-08 | Yes |
| 858-276 | SNDG LVTA | 6010 | 2016-02-26 | Yes |
| 858-277 | SNDG LVTA | 9740 | — | — |
| 858-278 | SNDG LVTA | 9740 | — | — |
| 858-279 | SNDG LVTA | 9740 | — | — |
| 858-280 | DEL MAR | 516C | 2016-08-08 | Yes |
| 858-281 | LA JOLLA | 8826 | 2014-04-22 | Yes |
| 858-282 | SNDG MRMS | 6010 | 2017-04-14 | Yes |
| 858-283 | LA JOLLA | 649C | 2016-10-10 | Yes |
| 858-284 | DEL MAR | 981E | 2014-05-15 | Yes |
| 858-285 | SNDG LVTA | 394L | — | Yes |
| 858-286 | CHULAVISTA | 197D | 2018-11-26 | Yes |
| 858-287 | SNDG MRMS | 6006 | 2014-08-11 | Yes |
| 858-288 | SNDG MRMS | 6006 | 2019-01-22 | Yes |
| 858-289 | SNDG LVTA | 6010 | 2020-05-13 | Yes |
| 858-290 | DEL MAR | 6529 | 2019-02-28 | Yes |
| 858-291 | LA JOLLA | 6010 | 2014-09-03 | Yes |
| 858-292 | SNDG LVTA | 9740 | — | — |
| 858-293 | SNDG MRMS | 671J | 2019-05-16 | Yes |
| 858-294 | CHULAVISTA | 981E | 2019-07-23 | Yes |
| 858-295 | LA JOLLA | 6010 | 2014-10-03 | Yes |
| 858-296 | SNDG LVTA | 394L | — | Yes |
| 858-297 | DEL MAR | 7894 | — | — |
| 858-298 | SNDG LVTA | 6010 | 2020-02-04 | Yes |
| 858-299 | DEL MAR | 394L | — | 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.