Phone numbers in Stockton, California
Stockton has 149 phone prefixes in area codes 209, 350.
Biggest holders: AT&T (local phone), Onvoy, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 30%
- Internet / business phone carrier 30%
- Paging service 2%
- Phone company 6%
Every prefix in Stockton
Search the first six digits of a number in this list. If it's here, the number started in Stockton with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 209-227 | Bandwidth | Internet / business phone carrier | 2009 |
| 209-234 | AT&T (local phone) | Local phone company | – |
| 209-235 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 209-242 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 209-244 | T-Mobile (including Sprint) | Mobile carrier | – |
| 209-271 | MetroPCS (T-Mobile) | Mobile carrier | 2001 |
| 209-279 | Verizon Wireless | Mobile carrier | 2016 |
| 209-290 | Vonage America | Internet / business phone carrier | 2017 |
| 209-292 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 209-298 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 209-299 | Onvoy | Internet / business phone carrier | 2017 |
| 209-307 | MCImetro (Verizon Business) | Internet / business phone carrier | 2018 |
| 209-313 | T-Mobile (including Sprint) | Mobile carrier | – |
| 209-320 | Onvoy | Internet / business phone carrier | – |
| 209-323 | Nuso | Internet / business phone carrier | – |
| 209-337 | Tpx Communications | Internet / business phone carrier | – |
| 209-361 | AT&T Mobility | Mobile carrier | 2014 |
| 209-373 | Tpx Communications | Internet / business phone carrier | 2005 |
| 209-390 | Teleport Communications America | Internet / business phone carrier | 2007 |
| 209-395 | Onvoy | Internet / business phone carrier | – |
| 209-401 | Verizon Wireless | Mobile carrier | – |
| 209-403 | Verizon Wireless | Mobile carrier | – |
| 209-405 | Verizon Wireless | Mobile carrier | – |
| 209-406 | AT&T Mobility | Mobile carrier | – |
| 209-414 | Csc Wireless | Mobile carrier | 2020 |
| 209-420 | AT&T Mobility | Mobile carrier | 2015 |
| 209-423 | MetroPCS (T-Mobile) | Mobile carrier | 2001 |
| 209-425 | MetroPCS (T-Mobile) | Mobile carrier | 2015 |
| 209-430 | MetroPCS (T-Mobile) | Mobile carrier | 2002 |
| 209-444 | Onvoy | Internet / business phone carrier | – |
| 209-451 | Onvoy | Internet / business phone carrier | 2007 |
| 209-453 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 209-460 | AT&T (local phone) | Local phone company | – |
| 209-461 | AT&T (local phone) | Local phone company | – |
| 209-462 | AT&T (local phone) | Local phone company | – |
| 209-463 | AT&T (local phone) | Local phone company | – |
| 209-464 | AT&T (local phone) | Local phone company | – |
| 209-465 | AT&T (local phone) | Local phone company | – |
| 209-466 | AT&T (local phone) | Local phone company | – |
| 209-467 | AT&T (local phone) | Local phone company | – |
| 209-468 | AT&T (local phone) | Local phone company | – |
| 209-469 | AT&T (local phone) | Local phone company | – |
| 209-470 | Verizon Wireless | Mobile carrier | – |
| 209-471 | Verizon Wireless | Mobile carrier | – |
| 209-472 | AT&T (local phone) | Local phone company | – |
| 209-473 | AT&T (local phone) | Local phone company | – |
| 209-474 | AT&T (local phone) | Local phone company | – |
| 209-475 | AT&T (local phone) | Local phone company | – |
| 209-476 | AT&T (local phone) | Local phone company | – |
| 209-477 | AT&T (local phone) | Local phone company | – |
| 209-478 | AT&T (local phone) | Local phone company | – |
| 209-479 | Verizon Wireless | Mobile carrier | – |
| 209-487 | Onvoy | Internet / business phone carrier | 2007 |
| 209-490 | T-Mobile (including Sprint) | Mobile carrier | – |
| 209-507 | Onvoy | Internet / business phone carrier | 2008 |
| 209-513 | Teleport Communications America | Internet / business phone carrier | – |
| 209-518 | T-Mobile (including Sprint) | Mobile carrier | – |
| 209-546 | AT&T (local phone) | Local phone company | – |
| 209-547 | AT&T (local phone) | Local phone company | – |
| 209-561 | AT&T Mobility | Mobile carrier | 2015 |
| 209-565 | Bandwidth | Internet / business phone carrier | 2008 |
| 209-594 | Comcast | Internet / business phone carrier | 2006 |
| 209-598 | AT&T Mobility | Mobile carrier | – |
| 209-615 | American Messaging Services | Paging service | – |
| 209-616 | Onvoy | Internet / business phone carrier | – |
| 209-623 | AT&T Mobility | Mobile carrier | – |
| 209-636 | AT&T Mobility | Mobile carrier | 2015 |
| 209-639 | Verizon Wireless | Mobile carrier | – |
| 209-641 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 209-644 | Onvoy | Internet / business phone carrier | – |
| 209-645 | Onvoy | Internet / business phone carrier | – |
| 209-649 | T-Mobile (including Sprint) | Mobile carrier | – |
| 209-659 | Twilio | Internet / business phone carrier | – |
| 209-662 | Verizon Wireless | Mobile carrier | – |
| 209-670 | T-Mobile (including Sprint) | Mobile carrier | – |
| 209-684 | Onvoy | Internet / business phone carrier | – |
| 209-685 | T-Mobile (including Sprint) | Mobile carrier | 2020 |
| 209-687 | Verizon Wireless | Mobile carrier | 2020 |
| 209-688 | MetroPCS (T-Mobile) | Mobile carrier | 2002 |
| 209-689 | Peerless Network Of California | Internet / business phone carrier | 2014 |
| 209-696 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 209-709 | Onvoy | Internet / business phone carrier | 2023 |
| 209-715 | Verizon Wireless | Mobile carrier | 2014 |
| 209-751 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 209-762 | Utility Telecom Group | Phone company | – |
| 209-774 | Tpx Communications | Internet / business phone carrier | – |
| 209-792 | Comcast | Internet / business phone carrier | 2020 |
| 209-798 | IP Horizon | Internet / business phone carrier | 2020 |
| 209-800 | Bandwidth | Internet / business phone carrier | – |
| 209-808 | AT&T (local phone) | Local phone company | – |
| 209-817 | AT&T (local phone) | Local phone company | – |
| 209-851 | CenturyLink / Lumen | Local phone company | 2014 |
| 209-868 | Onvoy | Internet / business phone carrier | – |
| 209-870 | Utility Telecom Group | Phone company | – |
| 209-871 | AT&T Mobility | Mobile carrier | 2021 |
| 209-888 | Utility Telecom Group | Phone company | 2004 |
| 209-889 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 209-898 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 209-901 | Onvoy | Internet / business phone carrier | 2021 |
| 209-905 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 209-910 | AT&T Enterprises | Phone company | – |
| 209-915 | AT&T Mobility | Mobile carrier | – |
| 209-921 | Onvoy | Internet / business phone carrier | 2021 |
| 209-922 | MCImetro (Verizon Business) | Internet / business phone carrier | 2003 |
| 209-926 | Onvoy | Internet / business phone carrier | – |
| 209-929 | Nuso | Internet / business phone carrier | – |
| 209-931 | AT&T (local phone) | Local phone company | – |
| 209-932 | AT&T (local phone) | Local phone company | – |
| 209-933 | AT&T (local phone) | Local phone company | – |
| 209-936 | AT&T Mobility | Mobile carrier | 2022 |
| 209-937 | AT&T (local phone) | Local phone company | – |
| 209-938 | AT&T (local phone) | Local phone company | – |
| 209-939 | AT&T (local phone) | Local phone company | – |
| 209-940 | Utility Telecom Group | Phone company | – |
| 209-941 | AT&T (local phone) | Local phone company | – |
| 209-942 | AT&T (local phone) | Local phone company | – |
| 209-943 | AT&T (local phone) | Local phone company | – |
| 209-944 | AT&T (local phone) | Local phone company | – |
| 209-945 | Utility Telecom Group | Phone company | 2016 |
| 209-946 | AT&T (local phone) | Local phone company | – |
| 209-948 | AT&T (local phone) | Local phone company | – |
| 209-949 | Utility Telecom Group | Phone company | 2015 |
| 209-951 | AT&T (local phone) | Local phone company | – |
| 209-952 | AT&T (local phone) | Local phone company | – |
| 209-953 | AT&T (local phone) | Local phone company | – |
| 209-954 | AT&T (local phone) | Local phone company | – |
| 209-955 | AT&T (local phone) | Local phone company | – |
| 209-956 | AT&T (local phone) | Local phone company | – |
| 209-957 | AT&T (local phone) | Local phone company | – |
| 209-981 | AT&T Mobility | Mobile carrier | – |
| 209-982 | AT&T (local phone) | Local phone company | – |
| 209-983 | AT&T (local phone) | Local phone company | – |
| 209-986 | Verizon Wireless | Mobile carrier | – |
| 209-987 | American Messaging Services | Paging service | – |
| 209-990 | Commio | Internet / business phone carrier | 2017 |
| 209-992 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 209-993 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 209-995 | American Messaging Services | Paging service | – |
| 350-217 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 350-219 | AT&T Mobility | Mobile carrier | 2024 |
| 350-228 | AT&T Mobility | Mobile carrier | 2024 |
| 350-231 | Leap Telecom | Phone company | 2024 |
| 350-241 | Wavenation | Phone company | 2025 |
| 350-242 | Nuso | Internet / business phone carrier | 2025 |
| 350-262 | Onvoy | Internet / business phone carrier | 2026 |
| 350-264 | Teleport Communications America | Internet / business phone carrier | 2026 |
| 350-350 | Onvoy | Internet / business phone carrier | 2023 |
| 350-355 | Onvoy | Internet / business phone carrier | 2024 |
| 350-998 | Onvoy | Internet / business phone carrier | 2026 |
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.