Area Code 858
Area code 858 is in California, USA , spanning 1 county and serving 32 cities, including San Diego, National City or La Mesa; it currently uses 537 prefixes, assigned from 858-200-XXXX through 858-999-XXXX.
In service since June 12, 1999, area code 858 is an overlay Numbering Plan Area, part of overlay complex 619/858.
The current local time is .
For exact NPA boundaries see official 858 area code map
More California area codes:
- 209
- 213
- 279
- 310
- 323
- 341
- 350
- 369
- 408
- 415
- 424
- 442
- 510
- 530
- 559
- 562
- 619
- 626
- 628
- 650
- 657
- 661
- 669
- 707
- 714
- 738
- 747
- 760
- 805
- 818
- 820
- 831
- 840
- 909
- 916
- 925
- 949
- 951
Reverse phone lookup
Locate any 858-NXX prefix:
| NPANXX | Area served1 | Date2 |
|---|---|---|
| 858-200 | La Jolla | N/A |
| 858-201 | San Diego [Mira Mesa] | N/A |
| 858-202 | La Jolla | N/A |
| 858-203 | La Jolla | 1/27/2016 |
| 858-204 | Poway | N/A |
| 858-205 | Del Mar | 1/16/2002 |
| 858-206 | Poway | 11/21/2006 |
| 858-207 | Rancho Bernardo | N/A |
| 858-208 | Poway | N/A |
| 858-209 | Del Mar | 5/22/2017 |
| 858-210 | La Jolla | 7/21/2008 |
| 858-212 | Poway | N/A |
| 858-213 | Poway | N/A |
| 858-214 | La Jolla | 11/22/2017 |
| 858-215 | Rancho Penasquitos | 3/30/2007 |
| 858-216 | Rancho Penasquitos | N/A |
| 858-217 | Rancho Bernardo | N/A |
| 858-218 | Poway | N/A |
| 858-219 | San Diego [Linda Vista] | N/A |
| 858-220 | La Jolla | 1/18/2002 |
| 858-221 | San Diego [Linda Vista] | 4/11/2016 |
| 858-222 | La Jolla | 10/13/2008 |
| 858-223 | San Diego [Linda Vista] | 6/10/2013 |
| 858-224 | La Jolla | 11/6/2009 |
| 858-225 | San Diego [Mira Mesa] | N/A |
| 858-226 | San Diego [Mira Mesa] | 9/9/2014 |
| 858-227 | Rancho Santa Fe | N/A |
| 858-228 | La Jolla | N/A |
| 858-229 | San Diego [Mira Mesa] | 9/13/2001 |
| 858-230 | La Jolla | 8/23/2011 |
| 858-231 | Poway | 12/14/2001 |
| 858-232 | La Jolla | N/A |
| 858-233 | La Jolla | N/A |
| 858-234 | Rancho Bernardo | N/A |
| 858-235 | La Jolla | 12/23/2019 |
| 858-236 | Poway | N/A |
| 858-237 | San Diego [Mira Mesa] | N/A |
| 858-238 | El Cajon | 9/8/2020 |
| 858-239 | San Diego [Mira Mesa] | 12/5/2014 |
| 858-240 | Rancho Penasquitos | N/A |
| 858-241 | La Jolla | 1/8/2021 |
| 858-242 | La Jolla | 6/20/2011 |
| 858-243 | Poway | 5/17/2001 |
| 858-244 | San Diego [Linda Vista] | N/A |
| 858-245 | La Jolla | 9/17/2001 |
| 858-246 | La Jolla | 7/3/2007 |
| 858-247 | La Jolla | N/A |
| 858-248 | Poway | 10/18/2001 |
| 858-249 | La Jolla | 10/4/2012 |
| 858-250 | La Jolla | N/A |
| 858-251 | La Jolla | 6/29/2012 |
| 858-252 | Del Mar | 10/8/2014 |
| 858-253 | San Diego [Mira Mesa] | 2/16/2015 |
| 858-254 | Poway | N/A |
| 858-255 | La Jolla | 2/2/2011 |
| 858-256 | San Diego [Linda Vista] | 3/10/2013 |
| 858-257 | La Jolla | 10/1/2014 |
| 858-258 | San Diego [Mira Mesa] | 6/7/2018 |
| 858-259 | Del Mar | N/A |
| 858-260 | La Jolla | 7/22/2013 |
| 858-261 | Del Mar | 2/18/2015 |
| 858-262 | San Diego [Linda Vista] | 3/11/2015 |
| 858-263 | La Jolla | 3/12/2013 |
| 858-264 | San Diego [Linda Vista] | 11/24/2014 |
| 858-265 | San Diego [Mira Mesa] | 7/2/2015 |
| 858-266 | San Diego [Linda Vista] | 11/8/2013 |
| 858-267 | San Diego [Mira Mesa] | 9/25/2015 |
| 858-268 | San Diego [Linda Vista] | N/A |
| 858-269 | Poway | 10/3/2018 |
| 858-270 | La Jolla | N/A |
| 858-271 | San Diego [Mira Mesa] | N/A |
| 858-272 | La Jolla | N/A |
| 858-273 | La Jolla | N/A |
| 858-274 | La Jolla | N/A |
| 858-275 | San Diego [Mira Mesa] | 4/8/2014 |
| 858-276 | San Diego [Linda Vista] | 2/26/2016 |
| 858-277 | San Diego [Linda Vista] | N/A |
| 858-278 | San Diego [Linda Vista] | N/A |
| 858-279 | San Diego [Linda Vista] | N/A |
| 858-280 | Del Mar | 8/8/2016 |
| 858-281 | La Jolla | 4/22/2014 |
| 858-282 | San Diego [Mira Mesa] | 4/14/2017 |
| 858-283 | La Jolla | 10/10/2016 |
| 858-284 | Del Mar | 5/15/2014 |
| 858-285 | San Diego [Linda Vista] | 3/3/2017 |
| 858-286 | Chula Vista | 11/26/2018 |
| 858-287 | San Diego [Mira Mesa] | 8/11/2014 |
| 858-288 | San Diego [Mira Mesa] | 1/22/2019 |
| 858-289 | San Diego [Linda Vista] | 5/13/2020 |
| 858-290 | Del Mar | 2/28/2019 |
| 858-291 | La Jolla | 9/3/2014 |
| 858-292 | San Diego [Linda Vista] | N/A |
| 858-293 | San Diego [Mira Mesa] | 5/16/2019 |
| 858-294 | Chula Vista | 7/23/2019 |
| 858-295 | La Jolla | 10/3/2014 |
| 858-296 | San Diego [Linda Vista] | 8/29/2019 |
| 858-297 | Del Mar | N/A |
| 858-298 | San Diego [Linda Vista] | 2/4/2020 |
| 858-299 | Del Mar | 4/26/2016 |
| NPANXX | Area served1 | Date2 |
|---|---|---|
| 858-300 | San Diego [Linda Vista] | N/A |
| 858-301 | El Cajon | 6/11/2020 |
| 858-302 | San Diego [Linda Vista] | 10/3/2017 |
| 858-303 | La Jolla | 11/26/2019 |
| 858-304 | Rancho Bernardo | N/A |
| 858-305 | San Diego [Mira Mesa] | 2/17/2021 |
| 858-306 | Del Mar | N/A |
| 858-307 | San Diego [Mira Mesa] | 11/22/2017 |
| 858-308 | San Diego [Linda Vista] | 3/10/2021 |
| 858-309 | San Diego [Linda Vista] | N/A |
| 858-310 | Rancho Santa Fe | N/A |
| 858-312 | Rancho Bernardo | N/A |
| 858-313 | Del Mar | 3/11/2021 |
| 858-314 | Del Mar | N/A |
| 858-315 | Chula Vista | 7/1/2021 |
| 858-316 | Chula Vista | 7/1/2021 |
| 858-317 | Dulzura | 08/10/2023 |
| 858-318 | Chula Vista | 5/27/2022 |
| 858-319 | La Jolla | 3/24/2021 |
| 858-320 | La Jolla | N/A |
| 858-321 | San Diego | 6/30/2022 |
| 858-322 | San Diego [Mira Mesa] | 11/13/2015 |
| 858-323 | Chula Vista | 7/22/2021 |
| 858-324 | Rancho Penasquitos | N/A |
| 858-325 | San Diego [Linda Vista] | 10/11/2021 |
| 858-326 | Chula Vista | 10/4/2022 |
| 858-327 | San Diego | 9/24/2021 |
| 858-328 | La Mesa | 10/26/2021 |
| 858-329 | San Diego [Mira Mesa] | 6/14/2016 |
| 858-330 | Rancho Penasquitos | 11/18/2021 |
| 858-331 | Chula Vista | 10/10/2022 |
| 858-332 | La Jolla | N/A |
| 858-333 | La Jolla | N/A |
| 858-334 | La Jolla | 2/15/2001 |
| 858-335 | Poway | N/A |
| 858-336 | La Jolla | N/A |
| 858-337 | La Jolla | N/A |
| 858-338 | Harbison/ Alpine | 9/8/2022 |
| 858-339 | El Cajon | 11/4/2022 |
| 858-340 | La Jolla | 03/10/2023 |
| 858-341 | Chula Vista | 10/28/2022 |
| 858-342 | Del Mar | N/A |
| 858-343 | La Jolla | 12/6/2022 |
| 858-344 | La Jolla | 4/24/2001 |
| 858-345 | Del Mar | N/A |
| 858-346 | La Jolla | N/A |
| 858-347 | Del Mar | N/A |
| 858-348 | San Diego [Mira Mesa] | N/A |
| 858-349 | La Jolla | N/A |
| 858-350 | Del Mar | N/A |
| 858-351 | San Diego | 10/20/2022 |
| 858-352 | La Jolla | N/A |
| 858-353 | Del Mar | N/A |
| 858-354 | La Jolla | N/A |
| 858-355 | San Diego | 9/22/2021 |
| 858-356 | Del Mar | N/A |
| 858-357 | San Diego [Mira Mesa] | N/A |
| 858-358 | El Cajon | 11/6/2020 |
| 858-359 | La Jolla | N/A |
| 858-360 | Rancho Penasquitos | N/A |
| 858-361 | La Jolla | N/A |
| 858-362 | La Jolla | N/A |
| 858-363 | Jacumba | 11/3/2022 |
| 858-364 | Rancho Penasquitos | N/A |
| 858-365 | Rancho Penasquitos | N/A |
| 858-366 | La Jolla | N/A |
| 858-367 | Rancho Santa Fe | N/A |
| 858-368 | San Diego [Mira Mesa] | N/A |
| 858-369 | Del Mar | N/A |
| 858-370 | La Jolla | 05/03/2023 |
| 858-371 | Rancho Penasquitos | N/A |
| 858-372 | La Jolla | 05/03/2023 |
| 858-373 | La Jolla | N/A |
| 858-374 | La Jolla | 08/03/2023 |
| 858-375 | Poway | N/A |
| 858-376 | Rancho Bernardo | N/A |
| 858-377 | Poway | 7/13/2021 |
| 858-378 | San Diego [Mira Mesa] | 11/14/2014 |
| 858-379 | El Cajon | 7/21/2022 |
| 858-380 | San Diego [Linda Vista] | N/A |
| 858-381 | Rancho Santa Fe | N/A |
| 858-382 | Poway | N/A |
| 858-383 | San Diego | 08/22/2023 |
| 858-384 | San Diego [Linda Vista] | N/A |
| 858-385 | Rancho Bernardo | N/A |
| 858-386 | Poway | N/A |
| 858-387 | La Mesa | 10/02/2023 |
| 858-388 | El Cajon | 3/19/2019 |
| 858-389 | Chula Vista | 10/10/2023 |
| 858-390 | La Jolla | 11/16/2023 |
| 858-391 | Poway | N/A |
| 858-392 | San Diego [Linda Vista] | 01/02/2024 |
| 858-393 | Del Mar | 01/02/2024 |
| 858-394 | San Diego [Linda Vista] | 01/10/2024 |
| 858-395 | Poway | N/A |
| 858-396 | La Jolla | 01/22/2024 |
| 858-397 | San Diego [Mira Mesa] | N/A |
| 858-398 | San Diego [Mira Mesa] | 01/20/2023 |
| 858-399 | Coronado | 1/27/2021 |
| NPANXX | Area served1 | Date2 |
|---|---|---|
| 858-400 | Rancho Santa Fe | N/A |
| 858-401 | La Jolla | 3/8/2004 |
| 858-402 | La Jolla | 02/20/2024 |
| 858-403 | Poway | 06/17/2024 |
| 858-404 | La Jolla | N/A |
| 858-405 | La Jolla | 12/14/2001 |
| 858-406 | La Jolla | 07/23/2024 |
| 858-408 | San Diego [Mira Mesa] | N/A |
| 858-410 | La Jolla | N/A |
| 858-412 | La Jolla | 9/22/2006 |
| 858-413 | Poway | N/A |
| 858-414 | San Diego [Mira Mesa] | 5/17/2002 |
| 858-422 | Coronado | 9/23/2021 |
| 858-424 | El Cajon | 03/20/2023 |
| 858-427 | San Diego [Linda Vista] | N/A |
| 858-428 | Rancho Penasquitos | N/A |
| 858-429 | San Diego [Linda Vista] | N/A |
| 858-430 | San Diego [Linda Vista] | N/A |
| 858-431 | La Jolla | N/A |
| 858-432 | Rancho Bernardo | N/A |
| 858-433 | San Diego [Mira Mesa] | N/A |
| 858-434 | Rancho Penasquitos | N/A |
| 858-435 | Poway | N/A |
| 858-436 | Del Mar | N/A |
| 858-437 | San Diego [Mira Mesa] | N/A |
| 858-438 | Chula Vista | 10/6/2022 |
| 858-442 | Poway | N/A |
| 858-444 | San Diego [Mira Mesa] | N/A |
| 858-449 | Poway | N/A |
| 858-450 | La Jolla | N/A |
| 858-451 | Rancho Bernardo | N/A |
| 858-452 | La Jolla | N/A |
| 858-453 | La Jolla | N/A |
| 858-454 | La Jolla | N/A |
| 858-455 | La Jolla | N/A |
| 858-456 | La Jolla | N/A |
| 858-457 | La Jolla | N/A |
| 858-458 | La Jolla | N/A |
| 858-459 | La Jolla | N/A |
| 858-461 | Del Mar | 1/6/2006 |
| 858-462 | National City | 1/11/2022 |
| 858-463 | Chula Vista | 1/11/2022 |
| 858-465 | Del Mar | 3/29/2013 |
| 858-466 | La Mesa | 3/16/2021 |
| 858-467 | San Diego [Linda Vista] | N/A |
| 858-471 | San Diego [Mira Mesa] | 3/6/2018 |
| 858-472 | Rancho Bernardo | 9/13/2001 |
| 858-477 | San Diego | 6/4/2021 |
| 858-480 | Del Mar | N/A |
| 858-481 | Del Mar | N/A |
| 858-483 | La Jolla | N/A |
| 858-484 | Rancho Penasquitos | N/A |
| 858-485 | Rancho Bernardo | N/A |
| 858-486 | Poway | N/A |
| 858-487 | Rancho Bernardo | N/A |
| 858-488 | La Jolla | N/A |
| 858-490 | La Jolla | N/A |
| 858-492 | San Diego [Linda Vista] | N/A |
| 858-493 | San Diego [Linda Vista] | N/A |
| 858-494 | San Diego [Linda Vista] | N/A |
| 858-495 | San Diego [Linda Vista] | N/A |
| 858-496 | San Diego [Linda Vista] | N/A |
| 858-499 | San Diego [Linda Vista] | N/A |
| NPANXX | Area served1 | Date2 |
|---|---|---|
| 858-500 | La Jolla | N/A |
| 858-502 | San Diego [Linda Vista] | N/A |
| 858-503 | San Diego [Linda Vista] | N/A |
| 858-504 | Rancho Santa Fe | 8/30/2002 |
| 858-505 | San Diego [Linda Vista] | N/A |
| 858-509 | Del Mar | N/A |
| 858-513 | Poway | N/A |
| 858-514 | San Diego [Linda Vista] | N/A |
| 858-518 | La Jolla | N/A |
| 858-519 | Del Mar | N/A |
| 858-521 | Rancho Bernardo | N/A |
| 858-522 | San Diego [Linda Vista] | N/A |
| 858-523 | Del Mar | N/A |
| 858-524 | Rancho Bernardo | N/A |
| 858-525 | La Jolla | N/A |
| 858-526 | La Jolla | N/A |
| 858-527 | San Diego [Mira Mesa] | N/A |
| 858-529 | La Jolla | N/A |
| 858-530 | San Diego [Mira Mesa] | N/A |
| 858-531 | La Jolla | 6/18/2001 |
| 858-533 | Harbison/ Alpine | 11/30/2021 |
| 858-534 | La Jolla | N/A |
| 858-535 | La Jolla | N/A |
| 858-536 | San Diego [Mira Mesa] | N/A |
| 858-537 | San Diego [Mira Mesa] | N/A |
| 858-538 | Rancho Penasquitos | N/A |
| 858-539 | La Jolla | N/A |
| 858-541 | San Diego [Linda Vista] | N/A |
| 858-544 | Rancho Bernardo | 9/24/2021 |
| 858-546 | La Jolla | N/A |
| 858-547 | San Diego [Mira Mesa] | N/A |
| 858-549 | San Diego [Mira Mesa] | N/A |
| 858-550 | La Jolla | N/A |
| 858-551 | La Jolla | N/A |
| 858-552 | La Jolla | N/A |
| 858-554 | La Jolla | N/A |
| 858-558 | La Jolla | N/A |
| 858-560 | San Diego [Linda Vista] | N/A |
| 858-564 | San Diego [Mira Mesa] | N/A |
| 858-565 | San Diego [Linda Vista] | N/A |
| 858-566 | San Diego [Mira Mesa] | N/A |
| 858-567 | La Jolla | 4/22/2021 |
| 858-568 | La Jolla | 8/9/2006 |
| 858-569 | San Diego [Linda Vista] | N/A |
| 858-571 | San Diego [Linda Vista] | N/A |
| 858-573 | San Diego [Linda Vista] | N/A |
| 858-576 | San Diego [Linda Vista] | N/A |
| 858-577 | San Diego [Mira Mesa] | N/A |
| 858-578 | San Diego [Mira Mesa] | N/A |
| 858-581 | La Jolla | N/A |
| 858-583 | San Diego [Linda Vista] | 9/24/2001 |
| 858-585 | La Mesa | 3/19/2019 |
| 858-586 | San Diego [Mira Mesa] | N/A |
| 858-587 | La Jolla | N/A |
| 858-588 | Rancho Bernardo | 1/13/2021 |
| 858-592 | Rancho Bernardo | N/A |
| 858-597 | La Jolla | N/A |
| 858-598 | San Diego [Linda Vista] | N/A |
| 858-599 | National City | 7/10/2020 |
| NPANXX | Area served1 | Date2 |
|---|---|---|
| 858-600 | Rancho Bernardo | N/A |
| 858-602 | Poway | 4/1/2002 |
| 858-603 | Rancho Penasquitos | N/A |
| 858-605 | Rancho Bernardo | N/A |
| 858-609 | San Diego [Linda Vista] | N/A |
| 858-610 | San Diego [Mira Mesa] | 8/30/2002 |
| 858-613 | Rancho Bernardo | N/A |
| 858-614 | San Diego [Linda Vista] | N/A |
| 858-616 | San Diego [Linda Vista] | N/A |
| 858-617 | Del Mar | N/A |
| 858-618 | Rancho Bernardo | N/A |
| 858-621 | San Diego [Mira Mesa] | N/A |
| 858-622 | La Jolla | N/A |
| 858-623 | La Jolla | N/A |
| 858-625 | La Jolla | N/A |
| 858-626 | La Jolla | N/A |
| 858-627 | San Diego [Linda Vista] | N/A |
| 858-630 | San Diego [Mira Mesa] | N/A |
| 858-633 | San Diego [Linda Vista] | N/A |
| 858-634 | San Diego [Linda Vista] | N/A |
| 858-635 | San Diego [Mira Mesa] | N/A |
| 858-636 | San Diego [Linda Vista] | N/A |
| 858-637 | San Diego [Linda Vista] | N/A |
| 858-638 | La Jolla | N/A |
| 858-642 | La Jolla | N/A |
| 858-643 | La Jolla | N/A |
| 858-644 | San Diego [Mira Mesa] | 9/23/2021 |
| 858-646 | La Jolla | N/A |
| 858-648 | Poway | 2/23/2018 |
| 858-649 | Rancho Bernardo | N/A |
| 858-650 | San Diego [Linda Vista] | N/A |
| 858-651 | La Jolla | N/A |
| 858-652 | La Jolla | 9/21/2006 |
| 858-653 | San Diego [Mira Mesa] | N/A |
| 858-654 | San Diego [Linda Vista] | N/A |
| 858-655 | Rancho Bernardo | N/A |
| 858-657 | La Jolla | N/A |
| 858-658 | La Jolla | N/A |
| 858-663 | Poway | N/A |
| 858-665 | La Jolla | 1/19/2022 |
| 858-666 | La Jolla | N/A |
| 858-667 | San Diego [Linda Vista] | 11/9/2020 |
| 858-668 | Poway | N/A |
| 858-672 | Rancho Penasquitos | N/A |
| 858-673 | Rancho Bernardo | N/A |
| 858-674 | Rancho Bernardo | N/A |
| 858-675 | Rancho Bernardo | N/A |
| 858-676 | Rancho Bernardo | N/A |
| 858-677 | La Jolla | N/A |
| 858-678 | La Jolla | N/A |
| 858-679 | Poway | N/A |
| 858-682 | Poway | N/A |
| 858-683 | Rancho Bernardo | N/A |
| 858-684 | San Diego [Mira Mesa] | N/A |
| 858-687 | Poway | 1/19/2022 |
| 858-688 | San Diego [Mira Mesa] | 9/24/2001 |
| 858-689 | San Diego [Mira Mesa] | N/A |
| 858-692 | La Jolla | 8/14/2002 |
| 858-693 | San Diego [Mira Mesa] | N/A |
| 858-694 | San Diego [Linda Vista] | N/A |
| 858-695 | San Diego [Mira Mesa] | N/A |
| 858-699 | La Jolla | 11/7/2001 |
| NPANXX | Area served1 | Date2 |
|---|---|---|
| 858-703 | Del Mar | N/A |
| 858-704 | Del Mar | N/A |
| 858-705 | Rancho Bernardo | N/A |
| 858-707 | San Diego [Linda Vista] | N/A |
| 858-712 | San Diego [Linda Vista] | N/A |
| 858-713 | La Jolla | N/A |
| 858-715 | San Diego [Linda Vista] | N/A |
| 858-716 | Rancho Bernardo | N/A |
| 858-717 | San Diego [Linda Vista] | 8/30/2002 |
| 858-720 | Del Mar | N/A |
| 858-722 | Poway | N/A |
| 858-723 | La Mesa | 1/12/2022 |
| 858-724 | Del Mar | N/A |
| 858-726 | Poway | N/A |
| 858-727 | San Diego | 11/11/2020 |
| 858-728 | San Diego [Mira Mesa] | N/A |
| 858-729 | La Jolla | N/A |
| 858-731 | La Jolla | N/A |
| 858-732 | La Jolla | N/A |
| 858-733 | Rancho Penasquitos | 8/30/2002 |
| 858-735 | Poway | N/A |
| 858-736 | La Jolla | N/A |
| 858-737 | San Diego [Linda Vista] | N/A |
| 858-740 | San Diego [Mira Mesa] | N/A |
| 858-742 | San Diego [Linda Vista] | 1/12/2022 |
| 858-744 | San Diego | 4/23/2021 |
| 858-746 | Poway | N/A |
| 858-748 | Poway | N/A |
| 858-750 | La Jolla | 7/18/2006 |
| 858-751 | San Diego [Linda Vista] | N/A |
| 858-752 | La Jolla | N/A |
| 858-753 | Rancho Bernardo | N/A |
| 858-754 | La Jolla | N/A |
| 858-755 | Del Mar | N/A |
| 858-756 | Rancho Santa Fe | N/A |
| 858-757 | San Diego [Mira Mesa] | 1/29/2016 |
| 858-758 | El Cajon | 9/17/2020 |
| 858-759 | Rancho Santa Fe | N/A |
| 858-761 | San Diego [Mira Mesa] | N/A |
| 858-762 | Poway | N/A |
| 858-764 | Del Mar | N/A |
| 858-765 | La Jolla | 8/10/2021 |
| 858-766 | La Jolla | 11/7/2012 |
| 858-768 | La Jolla | 9/22/2006 |
| 858-769 | San Diego [Linda Vista] | N/A |
| 858-771 | Rancho Santa Fe | 11/5/2004 |
| 858-774 | Rancho Bernardo | N/A |
| 858-775 | La Jolla | N/A |
| 858-776 | Rancho Bernardo | 8/30/2002 |
| 858-777 | La Jolla | N/A |
| 858-779 | Rancho Santa Fe | N/A |
| 858-780 | Rancho Penasquitos | N/A |
| 858-784 | La Jolla | N/A |
| 858-786 | National City | 3/16/2021 |
| 858-787 | Pine Valley | 2/17/2022 |
| 858-788 | La Jolla | 3/19/2019 |
| 858-789 | San Diego | 1/4/2021 |
| 858-790 | San Diego [Mira Mesa] | N/A |
| 858-792 | Del Mar | N/A |
| 858-793 | Del Mar | N/A |
| 858-794 | Del Mar | N/A |
| 858-795 | La Jolla | N/A |
| 858-798 | Rancho Bernardo | N/A |
| 858-799 | La Jolla | N/A |
| NPANXX | Area served1 | Date2 |
|---|---|---|
| 858-800 | San Diego [Mira Mesa] | N/A |
| 858-805 | San Diego [Mira Mesa] | N/A |
| 858-808 | National City | 2/18/2022 |
| 858-810 | San Diego [Linda Vista] | N/A |
| 858-812 | La Jolla | N/A |
| 858-815 | Rancho Bernardo | N/A |
| 858-822 | La Jolla | N/A |
| 858-824 | La Jolla | N/A |
| 858-826 | La Jolla | N/A |
| 858-828 | San Diego | 2/18/2022 |
| 858-829 | Poway | N/A |
| 858-831 | San Diego [Mira Mesa] | N/A |
| 858-832 | Rancho Santa Fe | N/A |
| 858-833 | San Diego | 9/17/2020 |
| 858-834 | Rancho Penasquitos | N/A |
| 858-836 | San Diego [Linda Vista] | N/A |
| 858-837 | Rancho Penasquitos | N/A |
| 858-838 | Campo | 5/10/2022 |
| 858-842 | Poway | N/A |
| 858-844 | El Cajon | 8/5/2021 |
| 858-845 | La Jolla | N/A |
| 858-847 | Del Mar | N/A |
| 858-848 | Poway | N/A |
| 858-855 | El Cajon | 4/23/2021 |
| 858-858 | San Diego | 05/22/2023 |
| 858-859 | Poway | N/A |
| 858-860 | San Diego [Mira Mesa] | N/A |
| 858-863 | San Diego [Mira Mesa] | N/A |
| 858-864 | La Jolla | N/A |
| 858-866 | La Jolla | N/A |
| 858-867 | San Diego | 7/10/2020 |
| 858-868 | San Diego | 12/19/2018 |
| 858-869 | La Jolla | N/A |
| 858-874 | San Diego [Linda Vista] | N/A |
| 858-875 | La Jolla | N/A |
| 858-876 | Del Mar | N/A |
| 858-877 | San Diego [Mira Mesa] | N/A |
| 858-878 | La Mesa | 2/18/2022 |
| 858-879 | Rancho Bernardo | N/A |
| 858-880 | San Diego [Mira Mesa] | N/A |
| 858-882 | La Jolla | N/A |
| 858-883 | Poway | N/A |
| 858-886 | La Jolla | N/A |
| 858-888 | La Jolla | N/A |
| 858-898 | Coronado | 2/18/2022 |
| 858-899 | El Cajon | 1/4/2021 |
| NPANXX | Area served1 | Date2 |
|---|---|---|
| 858-900 | La Jolla | N/A |
| 858-901 | Rancho Penasquitos | N/A |
| 858-902 | Chula Vista | 05/31/2024 |
| 858-905 | Rancho Penasquitos | N/A |
| 858-909 | La Jolla | N/A |
| 858-910 | Chula Vista | 4/1/2021 |
| 858-914 | Rancho Santa Fe | N/A |
| 858-922 | La Jolla | N/A |
| 858-923 | Rancho Santa Fe | N/A |
| 858-924 | Rancho Bernardo | N/A |
| 858-925 | Del Mar | N/A |
| 858-926 | La Jolla | N/A |
| 858-927 | Rancho Bernardo | N/A |
| 858-933 | Del Mar | 8/5/2021 |
| 858-935 | San Diego [Mira Mesa] | N/A |
| 858-939 | San Diego [Linda Vista] | N/A |
| 858-942 | Rancho Bernardo | N/A |
| 858-943 | Rancho Bernardo | N/A |
| 858-944 | San Diego [Linda Vista] | 7/13/2021 |
| 858-945 | La Jolla | N/A |
| 858-946 | Rancho Bernardo | N/A |
| 858-947 | Del Mar | N/A |
| 858-951 | Rancho Santa Fe | N/A |
| 858-952 | La Jolla | 12/19/2005 |
| 858-955 | Pine Valley | 9/17/2020 |
| 858-956 | Poway | N/A |
| 858-964 | La Jolla | N/A |
| 858-966 | San Diego [Linda Vista] | N/A |
| 858-967 | La Jolla | N/A |
| 858-974 | San Diego [Linda Vista] | N/A |
| 858-977 | Del Mar | 3/27/2020 |
| 858-978 | La Jolla | 10/25/2023 |
| 858-979 | La Jolla | 10/30/2023 |
| 858-980 | La Jolla | 10/30/2023 |
| 858-981 | La Jolla | 10/30/2023 |
| 858-982 | La Jolla | 10/30/2023 |
| 858-983 | La Jolla | 10/30/2023 |
| 858-984 | La Jolla | 10/30/2023 |
| 858-985 | La Jolla | 10/30/2023 |
| 858-986 | La Jolla | 10/30/2023 |
| 858-987 | San Diego [Linda Vista] | N/A |
| 858-988 | San Diego | 3/19/2019 |
| 858-989 | La Jolla | 10/30/2023 |
| 858-997 | La Jolla | 8/17/2007 |
| 858-999 | La Jolla | N/A |
- For 'Area served' we list the rate center. In the North American Numbering Plan a rate center is a geographic area used to determine local calling boundaries for billing purposes. Its name is generally a locality, often not the only one served by an NPA-NXX combination.
- Assignment date. N/A - mostly central office codes assigned before 2001.
- NXX prefixes last updated: August 27, 2024
Cities in area code 858
| City1 | County | Time2 |
|---|---|---|
| Alpine | San Diego | P |
| Bonita | San Diego | P |
| Boulevard | San Diego | P |
| Campo | San Diego | P |
| Chula Vista | San Diego | P |
| Coronado | San Diego | P |
| Del Mar | San Diego | P |
| Descanso | San Diego | P |
| Dulzura | San Diego | P |
| El Cajon | San Diego | P |
| Guatay | San Diego | P |
| Imperial Beach | San Diego | P |
| Jacumba | San Diego | P |
| Jamul | San Diego | P |
| La Jolla | San Diego | P |
| La Mesa | San Diego | P |
| Lakeside | San Diego | P |
| Lemon Grove | San Diego | P |
| Lincoln Acres | San Diego | P |
| Mount Laguna | San Diego | P |
| National City | San Diego | P |
| Pine Valley | San Diego | P |
| Potrero | San Diego | P |
| Poway | San Diego | P |
| Rancho San Diego | San Diego | P |
| Rancho Santa Fe | San Diego | P |
| San Diego | San Diego | P |
| San Ysidro | San Diego | P |
| Santee | San Diego | P |
| Solana Beach | San Diego | P |
| Spring Valley | San Diego | P |
| Tecate | San Diego | P |
- Listed above are most places served by USA area code 858. When multiple places in a US state share the same name we list the largest one only. Cities with population over 50,000 are displayed in bold text.
- P stands for Pacific Time (currently ).