Phone numbers in June Lake, California
June Lake has 4 phone prefixes in area codes 442, 760.
Biggest holders: Onvoy, Csc Wireless, Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 25%
- Local phone company 25%
- Internet / business phone carrier 50%
Every prefix in June Lake
Search the first six digits of a number in this list. If it's here, the number started in June Lake with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 442-301 | Onvoy | Internet / business phone carrier | 2016 |
| 442-308 | Csc Wireless | Mobile carrier | 2019 |
| 760-209 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 760-648 | Frontier | Local phone company | – |
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.