Phone numbers in Antioch, California
Antioch has 67 phone prefixes in area code 925.
Biggest holders: T-Mobile (including Sprint), AT&T (local phone), AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 45%
- Local phone company 18%
- Internet / business phone carrier 34%
- Paging service 1%
- Phone company 1%
Every prefix in Antioch
Search the first six digits of a number in this list. If it's here, the number started in Antioch with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 925-204 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 925-206 | Verizon Wireless | Mobile carrier | 2007 |
| 925-219 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 925-234 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 925-237 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 925-238 | Comcast | Internet / business phone carrier | 2008 |
| 925-281 | Onvoy | Internet / business phone carrier | – |
| 925-301 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 925-303 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 925-312 | Spok | Paging service | – |
| 925-325 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 925-329 | Verizon Wireless | Mobile carrier | 2014 |
| 925-331 | Tpx Communications | Internet / business phone carrier | 2001 |
| 925-350 | Comcast | Internet / business phone carrier | 2011 |
| 925-354 | AT&T Mobility | Mobile carrier | 2002 |
| 925-382 | T-Mobile (including Sprint) | Mobile carrier | – |
| 925-384 | AT&T Enterprises | Phone company | 2014 |
| 925-428 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 925-434 | Peerless Network Of California | Internet / business phone carrier | – |
| 925-436 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 925-437 | AT&T Mobility | Mobile carrier | – |
| 925-441 | Tpx Communications | Internet / business phone carrier | 2022 |
| 925-445 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 925-470 | Teleport Communications America | Internet / business phone carrier | – |
| 925-477 | T-Mobile (including Sprint) | Mobile carrier | 2019 |
| 925-481 | AT&T Mobility | Mobile carrier | 2014 |
| 925-489 | T-Mobile (including Sprint) | Mobile carrier | 2020 |
| 925-491 | Onvoy | Internet / business phone carrier | 2023 |
| 925-501 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 925-503 | T-Mobile (including Sprint) | Mobile carrier | 2017 |
| 925-506 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 925-522 | AT&T (local phone) | Local phone company | – |
| 925-529 | Onvoy | Internet / business phone carrier | – |
| 925-538 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 925-539 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 925-544 | AT&T Mobility | Mobile carrier | 2025 |
| 925-545 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 925-550 | AT&T Mobility | Mobile carrier | – |
| 925-554 | T-Mobile (including Sprint) | Mobile carrier | 2026 |
| 925-565 | MetroPCS (T-Mobile) | Mobile carrier | 2001 |
| 925-584 | T-Mobile (including Sprint) | Mobile carrier | – |
| 925-607 | Onvoy | Internet / business phone carrier | 2026 |
| 925-628 | Verizon Wireless | Mobile carrier | – |
| 925-642 | AT&T Mobility | Mobile carrier | – |
| 925-706 | AT&T (local phone) | Local phone company | – |
| 925-727 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 925-732 | Onvoy | Internet / business phone carrier | – |
| 925-752 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 925-753 | AT&T (local phone) | Local phone company | – |
| 925-754 | AT&T (local phone) | Local phone company | – |
| 925-755 | AT&T (local phone) | Local phone company | – |
| 925-756 | AT&T (local phone) | Local phone company | – |
| 925-757 | AT&T (local phone) | Local phone company | – |
| 925-759 | AT&T Mobility | Mobile carrier | – |
| 925-775 | Matrix Telecom, Llc. S/i/i Tnci | Internet / business phone carrier | – |
| 925-776 | AT&T (local phone) | Local phone company | – |
| 925-777 | AT&T (local phone) | Local phone company | – |
| 925-778 | AT&T (local phone) | Local phone company | – |
| 925-779 | AT&T (local phone) | Local phone company | – |
| 925-783 | Verizon Wireless | Mobile carrier | – |
| 925-813 | Verizon Wireless | Mobile carrier | 2002 |
| 925-834 | TON80 Communications | Internet / business phone carrier | 2021 |
| 925-840 | Onvoy | Internet / business phone carrier | 2026 |
| 925-848 | Matrix Telecom, Llc. S/i/i Tnci | Internet / business phone carrier | – |
| 925-877 | Fractel | Internet / business phone carrier | 2019 |
| 925-966 | Fractel | Internet / business phone carrier | 2021 |
| 925-978 | AT&T (local phone) | Local phone company | – |
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.