858 Area Code: Location, Cities, Map And Time Zone

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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 554 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 .

858 area code location on a map
© OpenStreetMap contributorsFor exact NPA boundaries see official 858 area code map

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More California area codes:

  • 209
  • 213
  • 279
  • 310
  • 323
  • 341
  • 350
  • 357
  • 369
  • 408
  • 415
  • 424
  • 442
  • 510
  • 530
  • 559
  • 562
  • 619
  • 626
  • 628
  • 650
  • 657
  • 661
  • 669
  • 707
  • 714
  • 738
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  • 831
  • 837
  • 840
  • 909
  • 916
  • 925
  • 949
  • 951

Locate any 858-NXX prefix:

858-200-XXXX --- 858-299-XXXX
NPANXX Area served[1] Provider[2] Date[3]
858-200 La Jolla Multiple N/A
858-201 San Diego [Mira Mesa] Multiple N/A
858-202 La Jolla Multiple N/A
858-203 La Jolla Multiple 1/27/2016
858-204 Poway Cellco Partnership N/A
858-205 Del Mar Multiple 1/16/2002
858-206 Poway Multiple 11/21/2006
858-207 Rancho Bernardo Multiple N/A
858-208 Poway Multiple N/A
858-209 Del Mar Multiple 5/22/2017
858-210 La Jolla Multiple 7/21/2008
858-212 Poway Multiple N/A
858-213 Poway Multiple N/A
858-214 La Jolla Multiple 11/22/2017
858-215 Rancho Penasquitos Multiple 3/30/2007
858-216 Rancho Penasquitos Multiple N/A
858-217 Rancho Bernardo Multiple N/A
858-218 Poway Multiple N/A
858-219 San Diego [Linda Vista] American Messaging Services N/A
858-220 La Jolla Multiple 1/18/2002
858-221 San Diego [Linda Vista] Multiple 4/11/2016
858-222 La Jolla Multiple 10/13/2008
858-223 San Diego [Linda Vista] Multiple 6/10/2013
858-224 La Jolla Multiple 11/6/2009
858-225 San Diego [Mira Mesa] Multiple N/A
858-226 San Diego [Mira Mesa] Multiple 9/9/2014
858-227 Rancho Santa Fe Multiple N/A
858-228 La Jolla Multiple N/A
858-229 San Diego [Mira Mesa] Cellco Partnership 9/13/2001
858-230 La Jolla Multiple 8/23/2011
858-231 Poway T-Mobile USA 12/14/2001
858-232 La Jolla New Cingular Wireless PCS N/A
858-233 La Jolla North County Communication Corporation N/A
858-234 Rancho Bernardo North County Communication Corporation N/A
858-235 La Jolla Paetec Itel 12/23/2019
858-236 Poway North County Communication Corporation N/A
858-237 San Diego [Mira Mesa] North County Communication Corporation N/A
858-238 El Cajon New Cingular Wireless PCS 9/8/2020
858-239 San Diego [Mira Mesa] Multiple 12/5/2014
858-240 Rancho Penasquitos Multiple N/A
858-241 La Jolla Multiple 1/8/2021
858-242 La Jolla Multiple 6/20/2011
858-243 Poway Cellco Partnership 5/17/2001
858-244 San Diego [Linda Vista] Multiple N/A
858-245 La Jolla Cellco Partnership 9/17/2001
858-246 La Jolla Multiple 7/3/2007
858-247 La Jolla Multiple N/A
858-248 Poway Multiple 10/18/2001
858-249 La Jolla Multiple 10/4/2012
858-250 La Jolla Multiple N/A
858-251 La Jolla Peerless Network Of California 6/29/2012
858-252 Del Mar Multiple 10/8/2014
858-253 San Diego [Mira Mesa] Cellco Partnership 2/16/2015
858-254 Poway T-Mobile USA N/A
858-255 La Jolla Multiple 2/2/2011
858-256 San Diego [Linda Vista] Multiple 3/10/2013
858-257 La Jolla Multiple 10/1/2014
858-258 San Diego [Mira Mesa] Multiple 6/7/2018
858-259 Del Mar Pacific Bell N/A
858-260 La Jolla Multiple 7/22/2013
858-261 Del Mar Multiple 2/18/2015
858-262 San Diego [Linda Vista] Multiple 3/11/2015
858-263 La Jolla Multiple 3/12/2013
858-264 San Diego [Linda Vista] Multiple 11/24/2014
858-265 San Diego [Mira Mesa] Multiple 7/2/2015
858-266 San Diego [Linda Vista] Multiple 11/8/2013
858-267 San Diego [Mira Mesa] Multiple 9/25/2015
858-268 San Diego [Linda Vista] Pacific Bell N/A
858-269 Poway Multiple 10/3/2018
858-270 La Jolla Pacific Bell N/A
858-271 San Diego [Mira Mesa] Multiple N/A
858-272 La Jolla Pacific Bell N/A
858-273 La Jolla Pacific Bell N/A
858-274 La Jolla Pacific Bell N/A
858-275 San Diego [Mira Mesa] Multiple 4/8/2014
858-276 San Diego [Linda Vista] Multiple 2/26/2016
858-277 San Diego [Linda Vista] Pacific Bell N/A
858-278 San Diego [Linda Vista] Pacific Bell N/A
858-279 San Diego [Linda Vista] Pacific Bell N/A
858-280 Del Mar Multiple 8/8/2016
858-281 La Jolla Multiple 4/22/2014
858-282 San Diego [Mira Mesa] Multiple 4/14/2017
858-283 La Jolla Multiple 10/10/2016
858-284 Del Mar Multiple 5/15/2014
858-285 San Diego [Linda Vista] Multiple 3/3/2017
858-286 Chula Vista Multiple 11/26/2018
858-287 San Diego [Mira Mesa] Multiple 8/11/2014
858-288 San Diego [Mira Mesa] Multiple 1/22/2019
858-289 San Diego [Linda Vista] Multiple 5/13/2020
858-290 Del Mar Multiple 2/28/2019
858-291 La Jolla Multiple 9/3/2014
858-292 San Diego [Linda Vista] Pacific Bell N/A
858-293 San Diego [Mira Mesa] Multiple 5/16/2019
858-294 Chula Vista Multiple 7/23/2019
858-295 La Jolla Multiple 10/3/2014
858-296 San Diego [Linda Vista] Comcast IP Phone 8/29/2019
858-297 Del Mar North County Communication Corporation N/A
858-298 San Diego [Linda Vista] Multiple 2/4/2020
858-299 Del Mar Multiple 4/26/2016
858-300-XXXX --- 858-399-XXXX
NPANXX Area served[1] Provider[2] Date[3]
858-300 San Diego [Linda Vista] Multiple N/A
858-301 El Cajon Multiple 6/11/2020
858-302 San Diego [Linda Vista] Multiple 10/3/2017
858-303 La Jolla Comcast IP Phone 11/26/2019
858-304 Rancho Bernardo Multiple N/A
858-305 San Diego [Mira Mesa] Multiple 2/17/2021
858-306 Del Mar Multiple N/A
858-307 San Diego [Mira Mesa] Pacific Bell 11/22/2017
858-308 San Diego [Linda Vista] Multiple 3/10/2021
858-309 San Diego [Linda Vista] Multiple N/A
858-310 Rancho Santa Fe Multiple N/A
858-312 Rancho Bernardo Multiple N/A
858-313 Del Mar Multiple 3/11/2021
858-314 Del Mar Multiple N/A
858-315 Chula Vista Multiple 7/1/2021
858-316 Chula Vista New Cingular Wireless PCS 7/1/2021
858-317 Dulzura Multiple 08/10/2023
858-318 Chula Vista Multiple 5/27/2022
858-319 La Jolla Multiple 3/24/2021
858-320 La Jolla Pacific Bell N/A
858-321 San Diego Multiple 6/30/2022
858-322 San Diego [Mira Mesa] Multiple 11/13/2015
858-323 Chula Vista Multiple 7/22/2021
858-324 Rancho Penasquitos Multiple N/A
858-325 San Diego [Linda Vista] Multiple 10/11/2021
858-326 Chula Vista Multiple 10/4/2022
858-327 San Diego Multiple 9/24/2021
858-328 La Mesa Multiple 10/26/2021
858-329 San Diego [Mira Mesa] Multiple 6/14/2016
858-330 Rancho Penasquitos Multiple 11/18/2021
858-331 Chula Vista Multiple 10/10/2022
858-332 La Jolla Multiple N/A
858-333 La Jolla Multiple N/A
858-334 La Jolla Multiple 2/15/2001
858-335 Poway New Cingular Wireless PCS N/A
858-336 La Jolla New Cingular Wireless PCS N/A
858-337 La Jolla New Cingular Wireless PCS N/A
858-338 Harbison-Alpine Onvoy 9/8/2022
858-339 El Cajon Multiple 11/4/2022
858-340 La Jolla New Cingular Wireless PCS 03/10/2023
858-341 Chula Vista Multiple 10/28/2022
858-342 Del Mar New Cingular Wireless PCS N/A
858-343 La Jolla New Cingular Wireless PCS 12/6/2022
858-344 La Jolla New Cingular Wireless PCS 4/24/2001
858-345 Del Mar Multiple N/A
858-346 La Jolla Multiple N/A
858-347 Del Mar USA Mobility Wireless N/A
858-348 San Diego [Mira Mesa] Multiple N/A
858-349 La Jolla New Cingular Wireless PCS N/A
858-350 Del Mar Pacific Bell N/A
858-351 San Diego Multiple 10/20/2022
858-352 La Jolla Multiple N/A
858-353 Del Mar New Cingular Wireless PCS N/A
858-354 La Jolla Cellco Partnership N/A
858-355 San Diego Multiple 9/22/2021
858-356 Del Mar Multiple N/A
858-357 San Diego [Mira Mesa] Multiple N/A
858-358 El Cajon Multiple 11/6/2020
858-359 La Jolla American Messaging Services N/A
858-360 Rancho Penasquitos Multiple N/A
858-361 La Jolla New Cingular Wireless PCS N/A
858-362 La Jolla MCIMetro Access Transmission Services N/A
858-363 Jacumba Multiple 11/3/2022
858-364 Rancho Penasquitos North County Communication Corporation N/A
858-365 Rancho Penasquitos Multiple N/A
858-366 La Jolla Multiple N/A
858-367 Rancho Santa Fe Multiple N/A
858-368 San Diego [Mira Mesa] Multiple N/A
858-369 Del Mar Multiple N/A
858-370 La Jolla New Cingular Wireless PCS 05/03/2023
858-371 Rancho Penasquitos Multiple N/A
858-372 La Jolla New Cingular Wireless PCS 05/03/2023
858-373 La Jolla Multiple N/A
858-374 La Jolla New Cingular Wireless PCS 08/03/2023
858-375 Poway Multiple N/A
858-376 Rancho Bernardo Multiple N/A
858-377 Poway Multiple 7/13/2021
858-378 San Diego [Mira Mesa] Multiple 11/14/2014
858-379 El Cajon Multiple 7/21/2022
858-380 San Diego [Linda Vista] Multiple N/A
858-381 Rancho Santa Fe Multiple N/A
858-382 Poway New Cingular Wireless PCS N/A
858-383 San Diego Teleport Communications America 08/22/2023
858-384 San Diego [Linda Vista] Multiple N/A
858-385 Rancho Bernardo Pacific Bell N/A
858-386 Poway Multiple N/A
858-387 La Mesa Multiple 10/02/2023
858-388 El Cajon Multiple 3/19/2019
858-389 Chula Vista Multiple 10/10/2023
858-390 La Jolla Teleport Communications America 11/16/2023
858-391 Poway Multiple N/A
858-392 San Diego [Linda Vista] Multiple 01/02/2024
858-393 Del Mar Multiple 01/02/2024
858-394 San Diego [Linda Vista] Multiple 01/10/2024
858-395 Poway Cellco Partnership N/A
858-396 La Jolla Multiple 01/22/2024
858-397 San Diego [Mira Mesa] Multiple N/A
858-398 San Diego [Mira Mesa] Multiple 01/20/2023
858-399 Coronado Multiple 1/27/2021
858-400-XXXX --- 858-499-XXXX
NPANXX Area served[1] Provider[2] Date[3]
858-400 Rancho Santa Fe Multiple N/A
858-401 La Jolla Multiple 3/8/2004
858-402 La Jolla Multiple 02/20/2024
858-403 Poway Multiple 06/17/2024
858-404 La Jolla Multiple N/A
858-405 La Jolla T-Mobile USA 12/14/2001
858-406 La Jolla New Cingular Wireless PCS 07/23/2024
858-407 Chulavista Multiple 08/30/2024
858-408 San Diego [Mira Mesa] Multiple N/A
858-409 La Jolla Multiple 09/17/2024
858-410 La Jolla MCIMetro Access Transmission Services N/A
858-412 La Jolla Multiple 9/22/2006
858-413 Poway Multiple N/A
858-414 San Diego [Mira Mesa] Cellco Partnership 5/17/2002
858-415 San Diego Multiple 09/19/2024
858-416 La Mesa Multiple 10/24/2024
858-417 National City Multiple 11/12/2024
858-418 San Diego Multiple 11/13/2024
858-419 San Diego Multiple 11/13/2024
858-420 San Diego [Linda Vista] New Cingular Wireless PCS 11/21/2024
858-421 Rancho Bernardo New Cingular Wireless PCS 01/13/2025
858-422 Coronado Multiple 9/23/2021
858-423 San Diego Multiple 01/24/2025
858-424 El Cajon Multiple 03/20/2023
858-425 San Diego Multiple 01/28/2025
858-426 El Cajon Multiple 04/08/2025
858-427 San Diego [Linda Vista] Multiple N/A
858-428 Rancho Penasquitos Multiple N/A
858-429 San Diego [Linda Vista] Multiple N/A
858-430 San Diego [Linda Vista] Multiple N/A
858-431 La Jolla Multiple N/A
858-432 Rancho Bernardo Multiple N/A
858-433 San Diego [Mira Mesa] Multiple N/A
858-434 Rancho Penasquitos Multiple N/A
858-435 Poway Multiple N/A
858-436 Del Mar Multiple N/A
858-437 San Diego [Mira Mesa] Multiple N/A
858-438 Chula Vista Onvoy 10/6/2022
858-439 Chula Vista Multiple 06/11/2025
858-440 La Mesa Multiple 08/22/2025
858-441 El Cajon Multiple 10/16/2025
858-442 Poway Cellco Partnership N/A
858-443 Chula Vista Multiple 10/21/2025
858-444 San Diego [Mira Mesa] Multiple N/A
858-445 San Diego [Mira Mesa] Multiple N/A
858-449 Poway Cellco Partnership N/A
858-450 La Jolla Pacific Bell N/A
858-451 Rancho Bernardo Multiple N/A
858-452 La Jolla Pacific Bell N/A
858-453 La Jolla Pacific Bell N/A
858-454 La Jolla Pacific Bell N/A
858-455 La Jolla Pacific Bell N/A
858-456 La Jolla Pacific Bell N/A
858-457 La Jolla Pacific Bell N/A
858-458 La Jolla Pacific Bell N/A
858-459 La Jolla Pacific Bell N/A
858-461 Del Mar Multiple 1/6/2006
858-462 National City Multiple 1/11/2022
858-463 Chula Vista Multiple 1/11/2022
858-465 Del Mar Multiple 3/29/2013
858-466 La Mesa Multiple 3/16/2021
858-467 San Diego [Linda Vista] Pacific Bell N/A
858-471 San Diego [Mira Mesa] Multiple 3/6/2018
858-472 Rancho Bernardo Cellco Partnership 9/13/2001
858-477 San Diego Multiple 6/4/2021
858-480 Del Mar Multiple N/A
858-481 Del Mar Pacific Bell N/A
858-483 La Jolla Pacific Bell N/A
858-484 Rancho Penasquitos Pacific Bell N/A
858-485 Rancho Bernardo Pacific Bell N/A
858-486 Poway Pacific Bell N/A
858-487 Rancho Bernardo Pacific Bell N/A
858-488 La Jolla Pacific Bell N/A
858-490 La Jolla Pacific Bell N/A
858-492 San Diego [Linda Vista] Multiple N/A
858-493 San Diego [Linda Vista] American Messaging Services N/A
858-494 San Diego [Linda Vista] American Messaging Services N/A
858-495 San Diego [Linda Vista] Pacific Bell N/A
858-496 San Diego [Linda Vista] Multiple N/A
858-499 San Diego [Linda Vista] Multiple N/A
858-500-XXXX --- 858-599-XXXX
NPANXX Area served[1] Provider[2] Date[3]
858-500 La Jolla Multiple N/A
858-502 San Diego [Linda Vista] Multiple N/A
858-503 San Diego [Linda Vista] Multiple N/A
858-504 Rancho Santa Fe Multiple 8/30/2002
858-505 San Diego [Linda Vista] Pacific Bell N/A
858-509 Del Mar Pacific Bell N/A
858-513 Poway Pacific Bell N/A
858-514 San Diego [Linda Vista] Pacific Bell N/A
858-518 La Jolla T-Mobile USA N/A
858-519 Del Mar Multiple N/A
858-521 Rancho Bernardo Multiple N/A
858-522 San Diego [Linda Vista] Multiple N/A
858-523 Del Mar Multiple N/A
858-524 Rancho Bernardo Multiple N/A
858-525 La Jolla Multiple N/A
858-526 La Jolla Multiple N/A
858-527 San Diego [Mira Mesa] Multiple N/A
858-529 La Jolla Multiple N/A
858-530 San Diego [Mira Mesa] Multiple N/A
858-531 La Jolla New Cingular Wireless PCS 6/18/2001
858-533 Harbison-Alpine Multiple 11/30/2021
858-534 La Jolla Pacific Bell N/A
858-535 La Jolla Pacific Bell N/A
858-536 San Diego [Mira Mesa] Multiple N/A
858-537 San Diego [Mira Mesa] Multiple N/A
858-538 Rancho Penasquitos Pacific Bell N/A
858-539 La Jolla Multiple N/A
858-541 San Diego [Linda Vista] Multiple N/A
858-544 Rancho Bernardo Multiple 9/24/2021
858-546 La Jolla Pacific Bell N/A
858-547 San Diego [Mira Mesa] Pacific Bell N/A
858-549 San Diego [Mira Mesa] Pacific Bell N/A
858-550 La Jolla Pacific Bell N/A
858-551 La Jolla Pacific Bell N/A
858-552 La Jolla Multiple N/A
858-554 La Jolla Pacific Bell N/A
858-558 La Jolla Pacific Bell N/A
858-560 San Diego [Linda Vista] Pacific Bell N/A
858-564 San Diego [Mira Mesa] Multiple N/A
858-565 San Diego [Linda Vista] Pacific Bell N/A
858-566 San Diego [Mira Mesa] Pacific Bell N/A
858-567 La Jolla Multiple 4/22/2021
858-568 La Jolla Multiple 8/9/2006
858-569 San Diego [Linda Vista] Pacific Bell N/A
858-571 San Diego [Linda Vista] Pacific Bell N/A
858-573 San Diego [Linda Vista] Pacific Bell N/A
858-576 San Diego [Linda Vista] Pacific Bell N/A
858-577 San Diego [Mira Mesa] Pacific Bell N/A
858-578 San Diego [Mira Mesa] Pacific Bell N/A
858-581 La Jolla Pacific Bell N/A
858-583 San Diego [Linda Vista] Multiple 9/24/2001
858-585 La Mesa Multiple 3/19/2019
858-586 San Diego [Mira Mesa] Multiple N/A
858-587 La Jolla Pacific Bell N/A
858-588 Rancho Bernardo Multiple 1/13/2021
858-592 Rancho Bernardo Pacific Bell N/A
858-597 La Jolla Pacific Bell N/A
858-598 San Diego [Linda Vista] Multiple N/A
858-599 National City Multiple 7/10/2020
858-600-XXXX --- 858-699-XXXX
NPANXX Area served[1] Provider[2] Date[3]
858-600 Rancho Bernardo American Messaging Services N/A
858-602 Poway Multiple 4/1/2002
858-603 Rancho Penasquitos New Cingular Wireless PCS N/A
858-605 Rancho Bernardo Multiple N/A
858-609 San Diego [Linda Vista] Multiple N/A
858-610 San Diego [Mira Mesa] T-Mobile USA 8/30/2002
858-613 Rancho Bernardo Pacific Bell N/A
858-614 San Diego [Linda Vista] Multiple N/A
858-616 San Diego [Linda Vista] Multiple N/A
858-617 Del Mar Multiple N/A
858-618 Rancho Bernardo Pacific Bell N/A
858-621 San Diego [Mira Mesa] Multiple N/A
858-622 La Jolla Pacific Bell N/A
858-623 La Jolla Pacific Bell N/A
858-625 La Jolla Multiple N/A
858-626 La Jolla Pacific Bell N/A
858-627 San Diego [Linda Vista] Pacific Bell N/A
858-630 San Diego [Mira Mesa] Multiple N/A
858-633 San Diego [Linda Vista] Multiple N/A
858-634 San Diego [Linda Vista] Multiple N/A
858-635 San Diego [Mira Mesa] Multiple N/A
858-636 San Diego [Linda Vista] Multiple N/A
858-637 San Diego [Linda Vista] Multiple N/A
858-638 La Jolla Pacific Bell N/A
858-642 La Jolla Multiple N/A
858-643 La Jolla Pacific Bell N/A
858-644 San Diego [Mira Mesa] Multiple 9/23/2021
858-646 La Jolla Pacific Bell N/A
858-648 Poway Multiple 2/23/2018
858-649 Rancho Bernardo Multiple N/A
858-650 San Diego [Linda Vista] Multiple N/A
858-651 La Jolla Level 3 Telecom Of California N/A
858-652 La Jolla Multiple 9/21/2006
858-653 San Diego [Mira Mesa] Multiple N/A
858-654 San Diego [Linda Vista] Multiple N/A
858-655 Rancho Bernardo Pacific Bell N/A
858-657 La Jolla Pacific Bell N/A
858-658 La Jolla Pacific Bell N/A
858-663 Poway Multiple N/A
858-665 La Jolla Multiple 1/19/2022
858-666 La Jolla Multiple N/A
858-667 San Diego [Linda Vista] Multiple 11/9/2020
858-668 Poway Multiple N/A
858-672 Rancho Penasquitos Multiple N/A
858-673 Rancho Bernardo Pacific Bell N/A
858-674 Rancho Bernardo Pacific Bell N/A
858-675 Rancho Bernardo Pacific Bell N/A
858-676 Rancho Bernardo Pacific Bell N/A
858-677 La Jolla Pacific Bell N/A
858-678 La Jolla Pacific Bell N/A
858-679 Poway Pacific Bell N/A
858-682 Poway Multiple N/A
858-683 Rancho Bernardo Multiple N/A
858-684 San Diego [Mira Mesa] Multiple N/A
858-687 Poway Multiple 1/19/2022
858-688 San Diego [Mira Mesa] Multiple 9/24/2001
858-689 San Diego [Mira Mesa] Pacific Bell N/A
858-692 La Jolla Cellco Partnership 8/14/2002
858-693 San Diego [Mira Mesa] Pacific Bell N/A
858-694 San Diego [Linda Vista] Pacific Bell N/A
858-695 San Diego [Mira Mesa] Multiple N/A
858-699 La Jolla New Cingular Wireless PCS 11/7/2001
858-703-XXXX --- 858-799-XXXX
NPANXX Area served[1] Provider[2] Date[3]
858-703 Del Mar Multiple N/A
858-704 Del Mar Multiple N/A
858-705 Rancho Bernardo Multiple N/A
858-707 San Diego [Linda Vista] Multiple N/A
858-712 San Diego [Linda Vista] MCIMetro Access Transmission Services N/A
858-713 La Jolla U.S. Telepacific Corp. N/A
858-715 San Diego [Linda Vista] Pacific Bell N/A
858-716 Rancho Bernardo Multiple N/A
858-717 San Diego [Linda Vista] Multiple 8/30/2002
858-720 Del Mar Pacific Bell N/A
858-722 Poway New Cingular Wireless PCS N/A
858-723 La Mesa Multiple 1/12/2022
858-724 Del Mar Multiple N/A
858-726 Poway Multiple N/A
858-727 San Diego Multiple 11/11/2020
858-728 San Diego [Mira Mesa] USA Mobility Wireless N/A
858-729 La Jolla Multiple N/A
858-731 La Jolla Multiple N/A
858-732 La Jolla Multiple N/A
858-733 Rancho Penasquitos Multiple 8/30/2002
858-735 Poway Cellco Partnership N/A
858-736 La Jolla Multiple N/A
858-737 San Diego [Linda Vista] Multiple N/A
858-740 San Diego [Mira Mesa] Multiple N/A
858-742 San Diego [Linda Vista] Multiple 1/12/2022
858-744 San Diego Multiple 4/23/2021
858-746 Poway Multiple N/A
858-748 Poway Pacific Bell N/A
858-750 La Jolla Multiple 7/18/2006
858-751 San Diego [Linda Vista] Multiple N/A
858-752 La Jolla Multiple N/A
858-753 Rancho Bernardo Multiple N/A
858-754 La Jolla Multiple N/A
858-755 Del Mar Pacific Bell N/A
858-756 Rancho Santa Fe Pacific Bell N/A
858-757 San Diego [Mira Mesa] Multiple 1/29/2016
858-758 El Cajon Multiple 9/17/2020
858-759 Rancho Santa Fe Pacific Bell N/A
858-761 San Diego [Mira Mesa] Multiple N/A
858-762 Poway Multiple N/A
858-764 Del Mar Multiple N/A
858-765 La Jolla Multiple 8/10/2021
858-766 La Jolla Multiple 11/7/2012
858-768 La Jolla Multiple 9/22/2006
858-769 San Diego [Linda Vista] Multiple N/A
858-771 Rancho Santa Fe Multiple 11/5/2004
858-774 Rancho Bernardo New Cingular Wireless PCS N/A
858-775 La Jolla Cellco Partnership N/A
858-776 Rancho Bernardo Multiple 8/30/2002
858-777 La Jolla U.S. Telepacific Corp. N/A
858-779 Rancho Santa Fe Multiple N/A
858-780 Rancho Penasquitos Multiple N/A
858-784 La Jolla Multiple N/A
858-786 National City Multiple 3/16/2021
858-787 Pine Valley Ton80 Communications 2/17/2022
858-788 La Jolla Multiple 3/19/2019
858-789 San Diego Multiple 1/4/2021
858-790 San Diego [Mira Mesa] Multiple N/A
858-792 Del Mar Pacific Bell N/A
858-793 Del Mar Pacific Bell N/A
858-794 Del Mar Pacific Bell N/A
858-795 La Jolla Teleport Communications America N/A
858-798 Rancho Bernardo Multiple N/A
858-799 La Jolla Multiple N/A
858-800-XXXX --- 858-899-XXXX
NPANXX Area served[1] Provider[2] Date[3]
858-800 San Diego [Mira Mesa] Multiple N/A
858-805 San Diego [Mira Mesa] Multiple N/A
858-808 National City Multiple 2/18/2022
858-810 San Diego [Linda Vista] Multiple N/A
858-812 La Jolla Teleport Communications America N/A
858-815 Rancho Bernardo Multiple N/A
858-822 La Jolla Multiple N/A
858-824 La Jolla Pacific Bell N/A
858-826 La Jolla Pacific Bell N/A
858-828 San Diego Multiple 2/18/2022
858-829 Poway Multiple N/A
858-831 San Diego [Mira Mesa] Multiple N/A
858-832 Rancho Santa Fe Multiple N/A
858-833 San Diego Multiple 9/17/2020
858-834 Rancho Penasquitos Multiple N/A
858-836 San Diego [Linda Vista] Multiple N/A
858-837 Rancho Penasquitos Multiple N/A
858-838 Campo Multiple 5/10/2022
858-842 Poway Multiple N/A
858-844 El Cajon Multiple 8/5/2021
858-845 La Jolla Level 3 Telecom Of California N/A
858-847 Del Mar Multiple N/A
858-848 Poway Multiple N/A
858-855 El Cajon Multiple 4/23/2021
858-858 San Diego Onvoy Spectrum 05/22/2023
858-859 Poway Multiple N/A
858-860 San Diego [Mira Mesa] Multiple N/A
858-863 San Diego [Mira Mesa] Multiple N/A
858-864 La Jolla Multiple N/A
858-866 La Jolla Multiple N/A
858-867 San Diego Multiple 7/10/2020
858-868 San Diego Multiple 12/19/2018
858-869 La Jolla Multiple N/A
858-874 San Diego [Linda Vista] Pacific Bell N/A
858-875 La Jolla U.S. Telepacific Corp. N/A
858-876 Del Mar Multiple N/A
858-877 San Diego [Mira Mesa] Multiple N/A
858-878 La Mesa Multiple 2/18/2022
858-879 Rancho Bernardo Multiple N/A
858-880 San Diego [Mira Mesa] Multiple N/A
858-882 La Jolla Multiple N/A
858-883 Poway Multiple N/A
858-886 La Jolla Multiple N/A
858-888 La Jolla Multiple N/A
858-898 Coronado Multiple 2/18/2022
858-899 El Cajon Multiple 1/4/2021
858-900-XXXX --- 858-999-XXXX
NPANXX Area served[1] Provider[2] Date[3]
858-900 La Jolla Multiple N/A
858-901 Rancho Penasquitos Multiple N/A
858-902 Chula Vista Multiple 05/31/2024
858-905 Rancho Penasquitos Multiple N/A
858-909 La Jolla Multiple N/A
858-910 Chula Vista Multiple 4/1/2021
858-914 Rancho Santa Fe Multiple N/A
858-922 La Jolla Cellco Partnership N/A
858-923 Rancho Santa Fe Multiple N/A
858-924 Rancho Bernardo Multiple N/A
858-925 Del Mar Multiple N/A
858-926 La Jolla Multiple N/A
858-927 Rancho Bernardo Multiple N/A
858-933 Del Mar Multiple 8/5/2021
858-935 San Diego [Mira Mesa] Multiple N/A
858-939 San Diego [Linda Vista] Multiple N/A
858-942 Rancho Bernardo Teleport Communications America N/A
858-943 Rancho Bernardo Multiple N/A
858-944 San Diego [Linda Vista] Multiple 7/13/2021
858-945 La Jolla Cellco Partnership N/A
858-946 Rancho Bernardo Multiple N/A
858-947 Del Mar Multiple N/A
858-951 Rancho Santa Fe Multiple N/A
858-952 La Jolla Multiple 12/19/2005
858-955 Pine Valley Multiple 9/17/2020
858-956 Poway Multiple N/A
858-964 La Jolla Multiple N/A
858-966 San Diego [Linda Vista] Multiple N/A
858-967 La Jolla Multiple N/A
858-974 San Diego [Linda Vista] Pacific Bell N/A
858-977 Del Mar Multiple 3/27/2020
858-978 La Jolla Teleport Communications America 10/25/2023
858-979 La Jolla Teleport Communications America 10/30/2023
858-980 La Jolla Teleport Communications America 10/30/2023
858-981 La Jolla Teleport Communications America 10/30/2023
858-982 La Jolla Teleport Communications America 10/30/2023
858-983 La Jolla Teleport Communications America 10/30/2023
858-984 La Jolla Teleport Communications America 10/30/2023
858-985 La Jolla Teleport Communications America 10/30/2023
858-986 La Jolla Teleport Communications America 10/30/2023
858-987 San Diego [Linda Vista] Multiple N/A
858-988 San Diego Multiple 3/19/2019
858-989 La Jolla Teleport Communications America 10/30/2023
858-997 La Jolla Multiple 8/17/2007
858-999 La Jolla Multiple N/A
  1. 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.
  2. A single provider refers to the original company controlling a whole NPA-NXX block (10,000 phone numbers). With Number Pooling, NPA-NXX blocks can be split into ten 1,000 phone number blocks and handed over to other service providers (available in the USA and Puerto Rico).
  3. Assignment date. N/A: unavailable date or central office code assigned before 2001.
  4. NXX prefixes last updated: February 13, 2026

Cities in area code 858

City1 County Time zone1
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
  1. 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.
  2. P stands for Pacific Time (currently ).
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