Phone numbers in Azusa, California
Azusa has 49 phone prefixes in area code 626.
Biggest holders: Frontier, AT&T Mobility, Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 29%
- Local phone company 22%
- Internet / business phone carrier 45%
- Phone company 4%
Every prefix in Azusa
Search the first six digits of a number in this list. If it's here, the number started in Azusa with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 626-208 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 626-210 | Charter / Spectrum | Internet / business phone carrier | 2016 |
| 626-224 | Teleport Communications America | Internet / business phone carrier | – |
| 626-250 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 626-253 | AT&T Mobility | Mobile carrier | – |
| 626-327 | AT&T Mobility | Mobile carrier | – |
| 626-334 | Frontier | Local phone company | – |
| 626-335 | Frontier | Local phone company | – |
| 626-385 | Tpx Communications | Internet / business phone carrier | – |
| 626-387 | Bandwidth | Internet / business phone carrier | – |
| 626-428 | AT&T Mobility | Mobile carrier | 2001 |
| 626-499 | T-Mobile (including Sprint) | Mobile carrier | 2018 |
| 626-504 | AT&T Mobility | Mobile carrier | 2020 |
| 626-505 | AT&T Mobility | Mobile carrier | 2019 |
| 626-513 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 626-516 | AT&T Mobility | Mobile carrier | 2019 |
| 626-526 | AT&T Mobility | Mobile carrier | 2020 |
| 626-540 | Exiant Communications | Phone company | – |
| 626-562 | Onvoy | Internet / business phone carrier | 2025 |
| 626-594 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 626-595 | AT&T Mobility | Mobile carrier | 2021 |
| 626-609 | Onvoy | Internet / business phone carrier | – |
| 626-610 | Tpx Communications | Internet / business phone carrier | – |
| 626-621 | Bandwidth | Internet / business phone carrier | 2021 |
| 626-629 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 626-633 | Frontier | Local phone company | – |
| 626-635 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 626-650 | Tpx Communications | Internet / business phone carrier | – |
| 626-663 | Fractel | Internet / business phone carrier | 2021 |
| 626-691 | AT&T (local phone) | Local phone company | – |
| 626-733 | Teleport Communications America | Internet / business phone carrier | – |
| 626-738 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 626-751 | Utility Telecom Group | Phone company | – |
| 626-769 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 626-771 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 626-784 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 626-804 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 626-812 | Frontier | Local phone company | – |
| 626-815 | Frontier | Local phone company | – |
| 626-852 | Frontier | Local phone company | – |
| 626-857 | Frontier | Local phone company | – |
| 626-865 | AT&T Mobility | Mobile carrier | 2026 |
| 626-905 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 626-914 | Frontier | Local phone company | – |
| 626-946 | Fractel | Internet / business phone carrier | 2020 |
| 626-955 | Fractel | Internet / business phone carrier | 2019 |
| 626-963 | Frontier | Local phone company | – |
| 626-969 | Frontier | Local phone company | – |
| 626-990 | Fractel | Internet / business phone carrier | 2022 |
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.