Phone numbers in Clifton, Arizona
Clifton has 4 phone prefixes in area code 928.
Biggest holders: Verizon Wireless, AT&T Mobility, Valley Tel Coop. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 75%
- Local phone company 25%
Every prefix in Clifton
Search the first six digits of a number in this list. If it's here, the number started in Clifton with the carrier shown. If it isn't, check the Arizona page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 928-215 | Verizon Wireless | Mobile carrier | 2003 |
| 928-292 | AT&T Mobility | Mobile carrier | 2006 |
| 928-513 | Verizon Wireless | Mobile carrier | 2023 |
| 928-865 | Valley Tel Coop | 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.