Phone numbers in Corning, California
Corning has 7 phone prefixes in area code 530.
Biggest holders: AT&T (local phone), AT&T Mobility, Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 14%
- Local phone company 29%
- Internet / business phone carrier 57%
Every prefix in Corning
Search the first six digits of a number in this list. If it's here, the number started in Corning with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 530-586 | AT&T Mobility | Mobile carrier | – |
| 530-670 | Onvoy | Internet / business phone carrier | 2019 |
| 530-689 | Peerless Network Of California | Internet / business phone carrier | – |
| 530-824 | AT&T (local phone) | Local phone company | – |
| 530-838 | AT&T (local phone) | Local phone company | – |
| 530-843 | Hd Carrier | Internet / business phone carrier | 2022 |
| 530-900 | Telnyx | 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.