Phone numbers in Norwalk, California
Norwalk has 100 phone prefixes in area code 562.
Biggest holders: Frontier, T-Mobile (including Sprint), AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 26%
- Local phone company 37%
- Internet / business phone carrier 34%
- Paging service 2%
- Phone company 1%
Every prefix in Norwalk
Search the first six digits of a number in this list. If it's here, the number started in Norwalk with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 562-202 | Charter / Spectrum | Internet / business phone carrier | 2012 |
| 562-207 | Tpx Communications | Internet / business phone carrier | – |
| 562-210 | AT&T Mobility | Mobile carrier | 2016 |
| 562-215 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 562-219 | Charter / Spectrum | Internet / business phone carrier | 2005 |
| 562-226 | Spok | Paging service | – |
| 562-227 | Spok | Paging service | – |
| 562-228 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 562-229 | Frontier | Local phone company | – |
| 562-239 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 562-246 | Tpx Communications | Internet / business phone carrier | – |
| 562-262 | Onvoy | Internet / business phone carrier | – |
| 562-263 | Tpx Communications | Internet / business phone carrier | – |
| 562-274 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 562-278 | Onvoy | Internet / business phone carrier | – |
| 562-281 | Bandwidth | Internet / business phone carrier | – |
| 562-282 | Tpx Communications | Internet / business phone carrier | – |
| 562-288 | 33 Wireless | Mobile carrier | – |
| 562-292 | Verizon Wireless | Mobile carrier | – |
| 562-293 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 562-307 | MetroPCS (T-Mobile) | Mobile carrier | 2002 |
| 562-345 | AT&T (local phone) | Local phone company | – |
| 562-348 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 562-356 | Teleport Communications America | Internet / business phone carrier | – |
| 562-376 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 562-379 | Charter / Spectrum | Internet / business phone carrier | 2017 |
| 562-402 | Frontier | Local phone company | – |
| 562-403 | Frontier | Local phone company | – |
| 562-404 | Frontier | Local phone company | – |
| 562-405 | Verizon Wireless | Mobile carrier | – |
| 562-406 | Frontier | Local phone company | – |
| 562-407 | Frontier | Local phone company | – |
| 562-409 | Frontier | Local phone company | – |
| 562-410 | T-Mobile (including Sprint) | Mobile carrier | 2019 |
| 562-412 | AT&T Mobility | Mobile carrier | – |
| 562-455 | Verizon Wireless | Mobile carrier | – |
| 562-461 | Frontier | Local phone company | – |
| 562-462 | Frontier | Local phone company | – |
| 562-465 | Frontier | Local phone company | – |
| 562-466 | Frontier | Local phone company | – |
| 562-467 | Frontier | Local phone company | – |
| 562-468 | Frontier | Local phone company | – |
| 562-474 | Charter / Spectrum | Internet / business phone carrier | 2016 |
| 562-483 | Frontier | Local phone company | – |
| 562-484 | Frontier | Local phone company | – |
| 562-503 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-521 | Bandwidth | Internet / business phone carrier | 2014 |
| 562-526 | AT&T Mobility | Mobile carrier | 2015 |
| 562-539 | Peerless Network Of California | Internet / business phone carrier | 2021 |
| 562-547 | AT&T Mobility | Mobile carrier | 2001 |
| 562-559 | Utility Telecom Group | Phone company | – |
| 562-562 | Onvoy | Internet / business phone carrier | 2022 |
| 562-564 | Bandwidth | Internet / business phone carrier | 2022 |
| 562-565 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 562-569 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 562-574 | Bandwidth | Internet / business phone carrier | 2022 |
| 562-584 | Bandwidth | Internet / business phone carrier | 2014 |
| 562-603 | MetroPCS (T-Mobile) | Mobile carrier | 2022 |
| 562-613 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 562-623 | Frontier | Local phone company | – |
| 562-638 | AT&T Mobility | Mobile carrier | 2024 |
| 562-645 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 562-647 | Onvoy | Internet / business phone carrier | 2023 |
| 562-649 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 562-650 | AT&T Mobility | Mobile carrier | 2001 |
| 562-651 | Frontier | Local phone company | – |
| 562-653 | Frontier | Local phone company | – |
| 562-660 | Verizon Wireless | Mobile carrier | 2024 |
| 562-667 | Onvoy | Internet / business phone carrier | – |
| 562-669 | Fractel | Internet / business phone carrier | 2021 |
| 562-677 | Tpx Communications | Internet / business phone carrier | – |
| 562-707 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 562-709 | Onvoy | Internet / business phone carrier | 2023 |
| 562-710 | Onvoy | Internet / business phone carrier | 2022 |
| 562-716 | AT&T Mobility | Mobile carrier | – |
| 562-727 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 562-734 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 562-741 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 562-752 | AT&T Mobility | Mobile carrier | 2024 |
| 562-802 | Frontier | Local phone company | – |
| 562-804 | Frontier | Local phone company | – |
| 562-807 | Frontier | Local phone company | – |
| 562-809 | Frontier | Local phone company | – |
| 562-860 | Frontier | Local phone company | – |
| 562-863 | Frontier | Local phone company | – |
| 562-864 | Frontier | Local phone company | – |
| 562-865 | Frontier | Local phone company | – |
| 562-866 | Frontier | Local phone company | – |
| 562-867 | Frontier | Local phone company | – |
| 562-868 | Frontier | Local phone company | – |
| 562-888 | Onvoy | Internet / business phone carrier | – |
| 562-916 | Frontier | Local phone company | – |
| 562-920 | Frontier | Local phone company | – |
| 562-921 | Frontier | Local phone company | – |
| 562-924 | Frontier | Local phone company | – |
| 562-925 | Frontier | Local phone company | – |
| 562-926 | Frontier | Local phone company | – |
| 562-929 | Frontier | Local phone company | – |
| 562-977 | Tpx Communications | Internet / business phone carrier | – |
| 562-991 | Verizon Wireless | Mobile carrier | 2008 |
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.