Phone numbers in Moorpark, California
Moorpark has 23 phone prefixes in area code 805.
Biggest holders: AT&T (local phone), Onvoy, Bandwidth. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 13%
- Local phone company 43%
- Internet / business phone carrier 39%
- Phone company 4%
Every prefix in Moorpark
Search the first six digits of a number in this list. If it's here, the number started in Moorpark with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 805-209 | Onvoy | Internet / business phone carrier | 2016 |
| 805-222 | Tpx Communications | Internet / business phone carrier | – |
| 805-292 | Bandwidth | Internet / business phone carrier | – |
| 805-298 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 805-299 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 805-334 | Bandwidth | Internet / business phone carrier | – |
| 805-378 | AT&T (local phone) | Local phone company | – |
| 805-517 | AT&T (local phone) | Local phone company | – |
| 805-518 | AT&T (local phone) | Local phone company | – |
| 805-523 | AT&T (local phone) | Local phone company | – |
| 805-529 | AT&T (local phone) | Local phone company | – |
| 805-530 | AT&T (local phone) | Local phone company | – |
| 805-531 | AT&T (local phone) | Local phone company | – |
| 805-532 | AT&T (local phone) | Local phone company | – |
| 805-552 | AT&T (local phone) | Local phone company | – |
| 805-553 | AT&T (local phone) | Local phone company | – |
| 805-744 | Teleport Communications America | Internet / business phone carrier | – |
| 805-876 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 805-891 | T-Mobile (including Sprint) | Mobile carrier | 2022 |
| 805-978 | Onvoy | Internet / business phone carrier | – |
| 805-990 | AT&T Mobility | Mobile carrier | – |
| 805-991 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 805-992 | Shelcomm | Phone company | 2018 |
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.