Phone numbers in Pima, Arizona
Pima has 9 phone prefixes in area code 928.
Biggest holders: Verizon Wireless, Bandwidth, CenturyLink / Lumen. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 22%
- Internet / business phone carrier 44%
Every prefix in Pima
Search the first six digits of a number in this list. If it's here, the number started in Pima with the carrier shown. If it isn't, check the Arizona page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 928-228 | Bandwidth | Internet / business phone carrier | 2010 |
| 928-298 | Verizon Wireless | Mobile carrier | 2013 |
| 928-316 | CenturyLink / Lumen | Local phone company | 2015 |
| 928-320 | Verizon Wireless | Mobile carrier | 2022 |
| 928-361 | Bandwidth | Internet / business phone carrier | 2020 |
| 928-393 | Onvoy | Internet / business phone carrier | 2020 |
| 928-413 | Verizon Wireless | Mobile carrier | 2021 |
| 928-485 | CenturyLink / Lumen | Local phone company | – |
| 928-506 | Onvoy | Internet / business phone carrier | 2023 |
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.