Phone numbers in La Jolla, California
La Jolla has 169 phone prefixes in area codes 619, 858.
Biggest holders: AT&T (local phone), AT&T Mobility, Teleport Communications America. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 27%
- Local phone company 32%
- Internet / business phone carrier 39%
- Paging service 1%
- Phone company 2%
Every prefix in La Jolla
Search the first six digits of a number in this list. If it's here, the number started in La Jolla with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 619-742 | Verizon Wireless | Mobile carrier | – |
| 619-812 | Tpx Communications | Internet / business phone carrier | 2022 |
| 619-953 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 858-200 | Tpx Communications | Internet / business phone carrier | – |
| 858-202 | AT&T (local phone) | Local phone company | – |
| 858-203 | Onvoy | Internet / business phone carrier | 2016 |
| 858-210 | Verizon Wireless | Mobile carrier | 2008 |
| 858-214 | T-Mobile (including Sprint) | Mobile carrier | 2017 |
| 858-220 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 858-222 | Onvoy | Internet / business phone carrier | 2008 |
| 858-224 | Onvoy | Internet / business phone carrier | – |
| 858-228 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 858-230 | AT&T Enterprises | Phone company | 2011 |
| 858-232 | AT&T Mobility | Mobile carrier | – |
| 858-233 | North County Communication | Phone company | – |
| 858-235 | Windstream (PAETEC) | Internet / business phone carrier | 2019 |
| 858-241 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 858-242 | AT&T Mobility | Mobile carrier | 2011 |
| 858-245 | Verizon Wireless | Mobile carrier | 2001 |
| 858-246 | Level 3 (Lumen) | Internet / business phone carrier | 2007 |
| 858-247 | Terra Nova Telecom | Internet / business phone carrier | – |
| 858-249 | AT&T Mobility | Mobile carrier | 2012 |
| 858-250 | Wide Voice | Phone company | – |
| 858-251 | Peerless Network Of California | Internet / business phone carrier | 2012 |
| 858-255 | Teleport Communications America | Internet / business phone carrier | 2011 |
| 858-257 | Level 3 (Lumen) | Internet / business phone carrier | 2014 |
| 858-260 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 858-263 | Charter / Spectrum | Internet / business phone carrier | 2013 |
| 858-270 | AT&T (local phone) | Local phone company | – |
| 858-272 | AT&T (local phone) | Local phone company | – |
| 858-273 | AT&T (local phone) | Local phone company | – |
| 858-274 | AT&T (local phone) | Local phone company | – |
| 858-281 | Level 3 (Lumen) | Internet / business phone carrier | 2014 |
| 858-283 | Onvoy | Internet / business phone carrier | 2016 |
| 858-291 | AT&T Mobility | Mobile carrier | 2014 |
| 858-295 | AT&T Mobility | Mobile carrier | 2014 |
| 858-303 | Comcast | Internet / business phone carrier | – |
| 858-319 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 858-320 | AT&T (local phone) | Local phone company | – |
| 858-332 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 858-333 | Bandwidth | Internet / business phone carrier | – |
| 858-334 | AT&T (local phone) | Local phone company | 2001 |
| 858-336 | AT&T Mobility | Mobile carrier | – |
| 858-337 | AT&T Mobility | Mobile carrier | – |
| 858-340 | AT&T Mobility | Mobile carrier | 2023 |
| 858-343 | AT&T Mobility | Mobile carrier | 2022 |
| 858-344 | AT&T Mobility | Mobile carrier | 2001 |
| 858-346 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 858-349 | AT&T Mobility | Mobile carrier | – |
| 858-352 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 858-354 | Verizon Wireless | Mobile carrier | – |
| 858-359 | American Messaging Services | Paging service | – |
| 858-361 | AT&T Mobility | Mobile carrier | – |
| 858-362 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 858-366 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 858-370 | AT&T Mobility | Mobile carrier | 2023 |
| 858-372 | AT&T Mobility | Mobile carrier | 2023 |
| 858-373 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 858-374 | AT&T Mobility | Mobile carrier | 2023 |
| 858-390 | Teleport Communications America | Internet / business phone carrier | 2023 |
| 858-396 | AT&T Mobility | Mobile carrier | 2024 |
| 858-401 | Teleport Communications America | Internet / business phone carrier | 2004 |
| 858-402 | AT&T Mobility | Mobile carrier | 2024 |
| 858-404 | AT&T (local phone) | Local phone company | – |
| 858-405 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 858-406 | AT&T Mobility | Mobile carrier | 2024 |
| 858-409 | AT&T Mobility | Mobile carrier | 2024 |
| 858-410 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 858-412 | Charter / Spectrum | Internet / business phone carrier | 2006 |
| 858-431 | AT&T (local phone) | Local phone company | – |
| 858-450 | AT&T (local phone) | Local phone company | – |
| 858-452 | AT&T (local phone) | Local phone company | – |
| 858-453 | AT&T (local phone) | Local phone company | – |
| 858-454 | AT&T (local phone) | Local phone company | – |
| 858-455 | AT&T (local phone) | Local phone company | – |
| 858-456 | AT&T (local phone) | Local phone company | – |
| 858-457 | AT&T (local phone) | Local phone company | – |
| 858-458 | AT&T (local phone) | Local phone company | – |
| 858-459 | AT&T (local phone) | Local phone company | – |
| 858-483 | AT&T (local phone) | Local phone company | – |
| 858-488 | AT&T (local phone) | Local phone company | – |
| 858-490 | AT&T (local phone) | Local phone company | – |
| 858-500 | Onvoy | Internet / business phone carrier | – |
| 858-518 | T-Mobile (including Sprint) | Mobile carrier | – |
| 858-525 | AT&T (local phone) | Local phone company | – |
| 858-526 | AT&T (local phone) | Local phone company | – |
| 858-529 | Onvoy | Internet / business phone carrier | – |
| 858-531 | AT&T Mobility | Mobile carrier | 2001 |
| 858-534 | AT&T (local phone) | Local phone company | – |
| 858-535 | AT&T (local phone) | Local phone company | – |
| 858-539 | AT&T (local phone) | Local phone company | – |
| 858-546 | AT&T (local phone) | Local phone company | – |
| 858-550 | AT&T (local phone) | Local phone company | – |
| 858-551 | AT&T (local phone) | Local phone company | – |
| 858-552 | AT&T (local phone) | Local phone company | – |
| 858-554 | AT&T (local phone) | Local phone company | – |
| 858-558 | AT&T (local phone) | Local phone company | – |
| 858-567 | Fractel | Internet / business phone carrier | 2021 |
| 858-568 | AT&T Mobility | Mobile carrier | 2006 |
| 858-581 | AT&T (local phone) | Local phone company | – |
| 858-587 | AT&T (local phone) | Local phone company | – |
| 858-597 | AT&T (local phone) | Local phone company | – |
| 858-622 | AT&T (local phone) | Local phone company | – |
| 858-623 | AT&T (local phone) | Local phone company | – |
| 858-625 | AT&T (local phone) | Local phone company | – |
| 858-626 | AT&T (local phone) | Local phone company | – |
| 858-638 | AT&T (local phone) | Local phone company | – |
| 858-642 | AT&T (local phone) | Local phone company | – |
| 858-643 | AT&T (local phone) | Local phone company | – |
| 858-646 | AT&T (local phone) | Local phone company | – |
| 858-651 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 858-652 | T-Mobile (including Sprint) | Mobile carrier | 2006 |
| 858-657 | AT&T (local phone) | Local phone company | – |
| 858-658 | AT&T (local phone) | Local phone company | – |
| 858-665 | TON80 Communications | Internet / business phone carrier | 2022 |
| 858-666 | Onvoy | Internet / business phone carrier | – |
| 858-677 | AT&T (local phone) | Local phone company | – |
| 858-678 | AT&T (local phone) | Local phone company | – |
| 858-692 | Verizon Wireless | Mobile carrier | 2002 |
| 858-699 | AT&T Mobility | Mobile carrier | 2001 |
| 858-713 | Tpx Communications | Internet / business phone carrier | – |
| 858-729 | AT&T (local phone) | Local phone company | – |
| 858-731 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 858-732 | Onvoy | Internet / business phone carrier | – |
| 858-736 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 858-750 | Verizon Wireless | Mobile carrier | 2006 |
| 858-752 | T-Mobile (including Sprint) | Mobile carrier | – |
| 858-754 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 858-765 | Teleport Communications America | Internet / business phone carrier | 2021 |
| 858-766 | Onvoy | Internet / business phone carrier | 2012 |
| 858-768 | Comcast | Internet / business phone carrier | – |
| 858-775 | Verizon Wireless | Mobile carrier | – |
| 858-777 | Tpx Communications | Internet / business phone carrier | – |
| 858-784 | AT&T (local phone) | Local phone company | – |
| 858-788 | Fractel | Internet / business phone carrier | 2019 |
| 858-795 | Teleport Communications America | Internet / business phone carrier | – |
| 858-799 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 858-812 | Teleport Communications America | Internet / business phone carrier | – |
| 858-822 | AT&T (local phone) | Local phone company | – |
| 858-824 | AT&T (local phone) | Local phone company | – |
| 858-826 | AT&T (local phone) | Local phone company | – |
| 858-845 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 858-864 | T-Mobile (including Sprint) | Mobile carrier | – |
| 858-866 | Tpx Communications | Internet / business phone carrier | – |
| 858-869 | Tpx Communications | Internet / business phone carrier | – |
| 858-875 | Tpx Communications | Internet / business phone carrier | – |
| 858-882 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 858-886 | AT&T (local phone) | Local phone company | – |
| 858-888 | Bandwidth | Internet / business phone carrier | – |
| 858-900 | Onvoy | Internet / business phone carrier | – |
| 858-909 | AT&T (local phone) | Local phone company | – |
| 858-922 | Verizon Wireless | Mobile carrier | – |
| 858-926 | Verizon Wireless | Mobile carrier | – |
| 858-945 | Verizon Wireless | Mobile carrier | – |
| 858-952 | Level 3 (Lumen) | Internet / business phone carrier | 2005 |
| 858-964 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 858-967 | T-Mobile (including Sprint) | Mobile carrier | – |
| 858-978 | Teleport Communications America | Internet / business phone carrier | 2023 |
| 858-979 | Teleport Communications America | Internet / business phone carrier | 2023 |
| 858-980 | Teleport Communications America | Internet / business phone carrier | 2023 |
| 858-981 | Teleport Communications America | Internet / business phone carrier | 2023 |
| 858-982 | Teleport Communications America | Internet / business phone carrier | 2023 |
| 858-983 | Teleport Communications America | Internet / business phone carrier | 2023 |
| 858-984 | Teleport Communications America | Internet / business phone carrier | 2023 |
| 858-985 | Teleport Communications America | Internet / business phone carrier | 2023 |
| 858-986 | Teleport Communications America | Internet / business phone carrier | 2023 |
| 858-989 | Teleport Communications America | Internet / business phone carrier | 2023 |
| 858-997 | Verizon Wireless | Mobile carrier | 2007 |
| 858-999 | Onvoy | Internet / business phone carrier | – |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.