Phone numbers in St. Johns, Arizona
St. Johns has 3 phone prefixes in area code 928.
Biggest holders: Cellular One Of Ne Arizona, Citizens Telecom Co Of White Mountains, TON80 Communications. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Internet / business phone carrier 33%
- Phone company 33%
Every prefix in St. Johns
Search the first six digits of a number in this list. If it's here, the number started in St. Johns with the carrier shown. If it isn't, check the Arizona page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 928-321 | Cellular One Of Ne Arizona | Mobile carrier | 2005 |
| 928-337 | Citizens Telecom Co Of White Mountains | Phone company | – |
| 928-886 | TON80 Communications | Internet / business phone carrier | 2022 |
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.