Phone numbers in Davis, California
Davis has 33 phone prefixes in area code 530.
Biggest holders: AT&T (local phone), AT&T Mobility, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 27%
- Local phone company 33%
- Internet / business phone carrier 39%
Every prefix in Davis
Search the first six digits of a number in this list. If it's here, the number started in Davis with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 530-204 | IP Horizon | Internet / business phone carrier | – |
| 530-219 | AT&T Mobility | Mobile carrier | – |
| 530-220 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 530-231 | T-Mobile (including Sprint) | Mobile carrier | – |
| 530-297 | AT&T (local phone) | Local phone company | – |
| 530-298 | Onvoy | Internet / business phone carrier | – |
| 530-302 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 530-304 | AT&T Mobility | Mobile carrier | – |
| 530-341 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 530-376 | Commio | Internet / business phone carrier | 2023 |
| 530-400 | AT&T Mobility | Mobile carrier | – |
| 530-554 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 530-564 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 530-574 | AT&T Mobility | Mobile carrier | – |
| 530-601 | AT&T Mobility | Mobile carrier | 2002 |
| 530-746 | Bandwidth | Internet / business phone carrier | – |
| 530-747 | AT&T (local phone) | Local phone company | – |
| 530-750 | AT&T (local phone) | Local phone company | – |
| 530-752 | AT&T (local phone) | Local phone company | – |
| 530-753 | AT&T (local phone) | Local phone company | – |
| 530-754 | AT&T (local phone) | Local phone company | – |
| 530-756 | AT&T (local phone) | Local phone company | – |
| 530-757 | AT&T (local phone) | Local phone company | – |
| 530-758 | AT&T (local phone) | Local phone company | – |
| 530-759 | AT&T (local phone) | Local phone company | – |
| 530-760 | Tpx Communications | Internet / business phone carrier | – |
| 530-761 | Teleport Communications America | Internet / business phone carrier | – |
| 530-771 | Onvoy | Internet / business phone carrier | – |
| 530-792 | AT&T (local phone) | Local phone company | – |
| 530-808 | Tpx Communications | Internet / business phone carrier | 2022 |
| 530-902 | Verizon Wireless | Mobile carrier | – |
| 530-916 | Onvoy | Internet / business phone carrier | 2026 |
| 530-979 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
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.