Phone numbers in Yorba Linda, California
Yorba Linda has 30 phone prefixes in area codes 657, 714.
Biggest holders: AT&T (local phone), Bandwidth, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 20%
- Local phone company 27%
- Internet / business phone carrier 53%
Every prefix in Yorba Linda
Search the first six digits of a number in this list. If it's here, the number started in Yorba Linda with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 657-234 | Bandwidth | Internet / business phone carrier | 2014 |
| 657-345 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 657-363 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 657-366 | Bandwidth | Internet / business phone carrier | 2018 |
| 657-387 | Onvoy | Internet / business phone carrier | 2016 |
| 657-395 | AT&T Mobility | Mobile carrier | 2019 |
| 657-522 | Bandwidth | Internet / business phone carrier | 2018 |
| 657-535 | Bandwidth | Internet / business phone carrier | 2021 |
| 657-571 | Bandwidth | Internet / business phone carrier | 2022 |
| 657-783 | AT&T Mobility | Mobile carrier | 2025 |
| 657-866 | Fractel | Internet / business phone carrier | 2020 |
| 714-261 | T-Mobile (including Sprint) | Mobile carrier | – |
| 714-312 | IP Horizon | Internet / business phone carrier | – |
| 714-340 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 714-386 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 714-406 | Bandwidth | Internet / business phone carrier | 2013 |
| 714-455 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 714-463 | Onvoy | Internet / business phone carrier | – |
| 714-485 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 714-584 | Tpx Communications | Internet / business phone carrier | 2009 |
| 714-660 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 714-692 | AT&T (local phone) | Local phone company | – |
| 714-693 | AT&T (local phone) | Local phone company | – |
| 714-694 | AT&T (local phone) | Local phone company | – |
| 714-695 | AT&T (local phone) | Local phone company | – |
| 714-696 | MCImetro (Verizon Business) | Internet / business phone carrier | 2001 |
| 714-701 | AT&T (local phone) | Local phone company | – |
| 714-777 | AT&T (local phone) | Local phone company | – |
| 714-779 | AT&T (local phone) | Local phone company | – |
| 714-970 | 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.