Area code 928: where it is and who calls from it
Area code 928 is in Arizona.
Arizona (except for Phoenix metropolitan area, Tucson metropolitan area, and some areas west and south of Tucson)
| Where | Arizona |
|---|---|
| Time zone | Mountain Time ยท local time |
| In service since | 2001 |
| Overlay | No |
| Prefixes assigned | 633 of 792 possible (80%) |
Where 928 numbers started
Every prefix is assigned to a rate center, the local calling area it was set up in. These are the biggest in 928, with how many prefixes each has.
Plus 33 smaller rate centers.
Who holds 928 numbers
- Mobile carrier 33%
- Local phone company 26%
- Internet / business phone carrier 34%
- Phone company 8%
| Carrier | Type | Prefixes | Share |
|---|---|---|---|
| CenturyLink / Lumen | Local phone company | 97 | 15% |
| Verizon Wireless | Mobile carrier | 91 | 14% |
| Onvoy | Internet / business phone carrier | 68 | 11% |
| Frontier | Local phone company | 56 | 9% |
| AT&T Mobility | Mobile carrier | 44 | 7% |
| T-Mobile (including Sprint) | Mobile carrier | 40 | 6% |
| Teleport Communications America | Internet / business phone carrier | 31 | 5% |
| Level 3 (Lumen) | Internet / business phone carrier | 27 | 4% |
| Cellular One Of Ne Arizona | Mobile carrier | 24 | 4% |
| Fractel | Internet / business phone carrier | 18 | 3% |
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.
States served: Arizona.
Other area codes in Arizona
Got a call from 928?
An area code tells you where a number was first assigned, not where the caller is. People keep their numbers when they move, and scammers can fake any number. If you weren't expecting the call, let it go to voicemail.
If the call shows a 928 number that matches the first six digits of your own, that's often neighbor spoofing. Use the box above to check the full number.
Area code facts from the NANPA area code database (updated 10/06/2026); prefixes and carriers from NANPA's central office code records (updated 2026-10-10). Place description adapted from Wikipedia, CC BY-SA 4.0.