Phone numbers in Manteca, California
Manteca has 49 phone prefixes in area codes 209, 350.
Biggest holders: AT&T Mobility, Frontier, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 61%
- Local phone company 12%
- Internet / business phone carrier 22%
- Phone company 4%
Every prefix in Manteca
Search the first six digits of a number in this list. If it's here, the number started in Manteca with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 209-239 | Frontier | Local phone company | – |
| 209-249 | Utility Telecom Group | Phone company | – |
| 209-275 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 209-302 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 209-305 | AT&T Mobility | Mobile carrier | 2017 |
| 209-328 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 209-397 | Twilio | Internet / business phone carrier | 2025 |
| 209-399 | Hd Carrier | Internet / business phone carrier | 2019 |
| 209-456 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 209-481 | AT&T Mobility | Mobile carrier | – |
| 209-482 | AT&T Mobility | Mobile carrier | – |
| 209-483 | AT&T Mobility | Mobile carrier | – |
| 209-510 | Onvoy | Internet / business phone carrier | 2019 |
| 209-539 | AT&T Mobility | Mobile carrier | 2020 |
| 209-601 | AT&T Mobility | Mobile carrier | – |
| 209-603 | AT&T Mobility | Mobile carrier | – |
| 209-607 | AT&T Mobility | Mobile carrier | – |
| 209-608 | AT&T Mobility | Mobile carrier | – |
| 209-609 | AT&T Mobility | Mobile carrier | – |
| 209-610 | AT&T Mobility | Mobile carrier | – |
| 209-612 | AT&T Mobility | Mobile carrier | – |
| 209-624 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 209-629 | AT&T Mobility | Mobile carrier | – |
| 209-647 | Wide Voice | Phone company | 2010 |
| 209-665 | Verizon Wireless | Mobile carrier | – |
| 209-673 | Verizon Wireless | Mobile carrier | 2020 |
| 209-679 | AT&T Mobility | Mobile carrier | – |
| 209-698 | AT&T Mobility | Mobile carrier | 2020 |
| 209-705 | AT&T Mobility | Mobile carrier | 2020 |
| 209-707 | Level 3 (Lumen) | Internet / business phone carrier | 2016 |
| 209-717 | T-Mobile (including Sprint) | Mobile carrier | 2020 |
| 209-739 | AT&T Mobility | Mobile carrier | 2020 |
| 209-775 | Onvoy | Internet / business phone carrier | – |
| 209-815 | AT&T Mobility | Mobile carrier | – |
| 209-823 | Frontier | Local phone company | – |
| 209-824 | Frontier | Local phone company | – |
| 209-825 | Frontier | Local phone company | – |
| 209-858 | Frontier | Local phone company | – |
| 209-880 | Skyetel | Internet / business phone carrier | 2021 |
| 209-884 | Verizon Wireless | Mobile carrier | 2021 |
| 209-923 | AT&T (local phone) | Local phone company | 2003 |
| 209-969 | AT&T Mobility | Mobile carrier | – |
| 209-972 | Hd Carrier | Internet / business phone carrier | 2022 |
| 209-998 | Fractel | Internet / business phone carrier | 2021 |
| 350-218 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 350-229 | Verizon Wireless | Mobile carrier | 2024 |
| 350-243 | Verizon Wireless | Mobile carrier | 2025 |
| 350-255 | Onvoy | Internet / business phone carrier | 2025 |
| 350-880 | 8X8 | 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.