Phone numbers in Lomita, California
Lomita has 30 phone prefixes in area codes 310, 424.
Biggest holders: AT&T (local phone), Onvoy, MCImetro (Verizon Business). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 20%
- Local phone company 33%
- Internet / business phone carrier 43%
- Phone company 3%
Every prefix in Lomita
Search the first six digits of a number in this list. If it's here, the number started in Lomita with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 310-257 | AT&T (local phone) | Local phone company | – |
| 310-304 | Onvoy | Internet / business phone carrier | 2023 |
| 310-325 | AT&T (local phone) | Local phone company | – |
| 310-326 | AT&T (local phone) | Local phone company | – |
| 310-517 | AT&T (local phone) | Local phone company | – |
| 310-530 | AT&T (local phone) | Local phone company | – |
| 310-534 | AT&T (local phone) | Local phone company | – |
| 310-539 | AT&T (local phone) | Local phone company | – |
| 310-602 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 310-626 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 310-784 | AT&T (local phone) | Local phone company | – |
| 310-891 | AT&T (local phone) | Local phone company | – |
| 310-986 | T-Mobile (including Sprint) | Mobile carrier | 2005 |
| 310-997 | Verizon Wireless | Mobile carrier | – |
| 424-203 | MCImetro (Verizon Business) | Internet / business phone carrier | 2006 |
| 424-222 | MetroPCS (T-Mobile) | Mobile carrier | 2007 |
| 424-250 | Onvoy | Internet / business phone carrier | – |
| 424-251 | Verizon Wireless | Mobile carrier | 2009 |
| 424-263 | AT&T Enterprises | Phone company | – |
| 424-305 | Verizon Wireless | Mobile carrier | 2016 |
| 424-328 | CenturyLink / Lumen | Local phone company | 2013 |
| 424-347 | MCImetro (Verizon Business) | Internet / business phone carrier | 2014 |
| 424-378 | Onvoy | Internet / business phone carrier | – |
| 424-401 | Comcast | Internet / business phone carrier | 2017 |
| 424-461 | Commio | Internet / business phone carrier | 2021 |
| 424-495 | Onvoy | Internet / business phone carrier | 2023 |
| 424-516 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 424-564 | Onvoy | Internet / business phone carrier | 2026 |
| 424-667 | Fractel | Internet / business phone carrier | 2021 |
| 424-688 | Fractel | Internet / business phone carrier | 2020 |
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.