Phone numbers in Arlington, California
Arlington has 50 phone prefixes in area code 951.
Biggest holders: AT&T (local phone), T-Mobile (including Sprint), AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 44%
- Local phone company 30%
- Internet / business phone carrier 24%
- Phone company 2%
Every prefix in Arlington
Search the first six digits of a number in this list. If it's here, the number started in Arlington with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 951-299 | MCImetro (Verizon Business) | Internet / business phone carrier | 2010 |
| 951-307 | Onvoy | Internet / business phone carrier | – |
| 951-324 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 951-343 | AT&T (local phone) | Local phone company | – |
| 951-351 | AT&T (local phone) | Local phone company | – |
| 951-352 | AT&T (local phone) | Local phone company | – |
| 951-353 | AT&T (local phone) | Local phone company | – |
| 951-354 | AT&T (local phone) | Local phone company | – |
| 951-358 | AT&T (local phone) | Local phone company | – |
| 951-359 | AT&T (local phone) | Local phone company | – |
| 951-373 | Level 3 (Lumen) | Internet / business phone carrier | 2011 |
| 951-376 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 951-396 | Verizon Wireless | Mobile carrier | 2014 |
| 951-406 | Charter / Spectrum | Internet / business phone carrier | 2016 |
| 951-441 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 951-446 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 951-470 | AT&T Mobility | Mobile carrier | 2018 |
| 951-476 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 951-509 | AT&T (local phone) | Local phone company | – |
| 951-525 | T-Mobile (including Sprint) | Mobile carrier | 2009 |
| 951-539 | AT&T Mobility | Mobile carrier | 2019 |
| 951-552 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 951-556 | Verizon Wireless | Mobile carrier | – |
| 951-578 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 951-588 | Tpx Communications | Internet / business phone carrier | – |
| 951-598 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 951-602 | AT&T (local phone) | Local phone company | – |
| 951-617 | AT&T Mobility | Mobile carrier | 2022 |
| 951-619 | Shelcomm | Phone company | 2004 |
| 951-624 | AT&T Mobility | Mobile carrier | 2023 |
| 951-637 | AT&T (local phone) | Local phone company | – |
| 951-643 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 951-649 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 951-687 | AT&T (local phone) | Local phone company | – |
| 951-688 | AT&T (local phone) | Local phone company | – |
| 951-689 | AT&T (local phone) | Local phone company | – |
| 951-690 | Verizon Wireless | Mobile carrier | 2023 |
| 951-701 | AT&T Mobility | Mobile carrier | 2023 |
| 951-710 | AT&T (local phone) | Local phone company | – |
| 951-729 | IP Horizon | Internet / business phone carrier | – |
| 951-731 | Verizon Wireless | Mobile carrier | 2024 |
| 951-762 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 951-772 | T-Mobile (including Sprint) | Mobile carrier | 2015 |
| 951-785 | AT&T (local phone) | Local phone company | – |
| 951-792 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 951-814 | AT&T Mobility | Mobile carrier | 2026 |
| 951-828 | Teleport Communications America | Internet / business phone carrier | 2026 |
| 951-840 | Verizon Wireless | Mobile carrier | – |
| 951-944 | Fractel | Internet / business phone carrier | 2021 |
| 951-977 | Level 3 (Lumen) | Internet / business phone carrier | – |
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.