Phone numbers in Californcy, California
Californcy has 11 phone prefixes in area codes 442, 760.
Biggest holders: AT&T Mobility, TON80 Communications, Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 64%
- Local phone company 9%
- Internet / business phone carrier 27%
Every prefix in Californcy
Search the first six digits of a number in this list. If it's here, the number started in Californcy with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 442-247 | AT&T Mobility | Mobile carrier | 2014 |
| 442-285 | AT&T Mobility | Mobile carrier | 2015 |
| 442-319 | AT&T Mobility | Mobile carrier | 2020 |
| 442-417 | AT&T Mobility | Mobile carrier | 2023 |
| 442-446 | TON80 Communications | Internet / business phone carrier | 2022 |
| 442-475 | AT&T Mobility | Mobile carrier | 2024 |
| 442-498 | AT&T Mobility | Mobile carrier | 2026 |
| 760-284 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 760-338 | AT&T Mobility | Mobile carrier | 2012 |
| 760-373 | Frontier | Local phone company | – |
| 760-514 | Bandwidth | 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.