Phone numbers in Alamitos, California
Alamitos has 101 phone prefixes in area code 562.
Biggest holders: T-Mobile (including Sprint), Frontier, Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 41%
- Local phone company 28%
- Internet / business phone carrier 28%
- Paging service 2%
- Phone company 2%
Every prefix in Alamitos
Search the first six digits of a number in this list. If it's here, the number started in Alamitos with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 562-208 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-209 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-212 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-225 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-230 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-234 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-235 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-240 | Teleport Communications America | Internet / business phone carrier | – |
| 562-241 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 562-248 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-252 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 562-280 | Tpx Communications | Internet / business phone carrier | – |
| 562-284 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-286 | Onvoy | Internet / business phone carrier | – |
| 562-296 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 562-312 | Onvoy | Internet / business phone carrier | 2023 |
| 562-314 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-330 | Verizon Wireless | Mobile carrier | – |
| 562-331 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 562-338 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 562-339 | Utility Telecom Group | Phone company | – |
| 562-340 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 562-341 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 562-342 | Frontier | Local phone company | – |
| 562-343 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 562-344 | Tpx Communications | Internet / business phone carrier | – |
| 562-346 | AT&T (local phone) | Local phone company | – |
| 562-357 | AT&T Mobility | Mobile carrier | 2015 |
| 562-370 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 562-374 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-375 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 562-386 | AT&T Mobility | Mobile carrier | 2015 |
| 562-387 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-389 | Shelcomm | Phone company | 2018 |
| 562-391 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 562-430 | Frontier | Local phone company | – |
| 562-431 | Frontier | Local phone company | – |
| 562-433 | Frontier | Local phone company | – |
| 562-434 | Frontier | Local phone company | – |
| 562-438 | Frontier | Local phone company | – |
| 562-439 | Frontier | Local phone company | – |
| 562-446 | Tpx Communications | Internet / business phone carrier | – |
| 562-449 | T-Mobile (including Sprint) | Mobile carrier | – |
| 562-476 | AT&T Mobility | Mobile carrier | 2019 |
| 562-488 | Fractel | Internet / business phone carrier | 2020 |
| 562-493 | Frontier | Local phone company | – |
| 562-494 | Frontier | Local phone company | – |
| 562-498 | Frontier | Local phone company | – |
| 562-509 | AT&T Mobility | Mobile carrier | 2019 |
| 562-510 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 562-523 | T-Mobile (including Sprint) | Mobile carrier | 2020 |
| 562-538 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 562-546 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 562-575 | Commio | Internet / business phone carrier | 2021 |
| 562-578 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 562-583 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 562-588 | Charter / Spectrum | Internet / business phone carrier | 2016 |
| 562-592 | Frontier | Local phone company | – |
| 562-594 | Frontier | Local phone company | – |
| 562-596 | Frontier | Local phone company | – |
| 562-597 | Frontier | Local phone company | – |
| 562-598 | Frontier | Local phone company | – |
| 562-609 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 562-614 | Bandwidth | Internet / business phone carrier | 2022 |
| 562-615 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 562-621 | Frontier | Local phone company | – |
| 562-626 | Frontier | Local phone company | – |
| 562-643 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 562-666 | Verizon Wireless | Mobile carrier | – |
| 562-668 | Teleport Communications America | Internet / business phone carrier | – |
| 562-701 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 562-702 | MetroPCS (T-Mobile) | Mobile carrier | 2018 |
| 562-719 | Tpx Communications | Internet / business phone carrier | – |
| 562-725 | AT&T Mobility | Mobile carrier | 2018 |
| 562-735 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 562-742 | Onvoy | Internet / business phone carrier | – |
| 562-744 | Spok | Paging service | – |
| 562-767 | Teleport Communications America | Internet / business phone carrier | 2025 |
| 562-768 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 562-784 | TON80 Communications | Internet / business phone carrier | 2022 |
| 562-794 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 562-795 | Frontier | Local phone company | – |
| 562-796 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 562-797 | Frontier | Local phone company | – |
| 562-799 | Frontier | Local phone company | – |
| 562-819 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 562-820 | Teleport Communications America | Internet / business phone carrier | 2025 |
| 562-825 | AT&T Mobility | Mobile carrier | 2017 |
| 562-826 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 562-844 | Fractel | Internet / business phone carrier | 2020 |
| 562-847 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 562-856 | Frontier | Local phone company | – |
| 562-870 | T-Mobile (including Sprint) | Mobile carrier | 2026 |
| 562-918 | Spok | Paging service | – |
| 562-930 | Frontier | Local phone company | – |
| 562-936 | Frontier | Local phone company | – |
| 562-939 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 562-961 | Frontier | Local phone company | – |
| 562-985 | Frontier | Local phone company | – |
| 562-986 | Frontier | Local phone company | – |
| 562-987 | Frontier | 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.