Phone numbers in Farmington, Utah
Farmington has 14 phone prefixes in area codes 385, 801.
Biggest holders: Onvoy, MCImetro (Verizon Business), CenturyLink / Lumen. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 7%
- Local phone company 29%
- Internet / business phone carrier 64%
Every prefix in Farmington
Search the first six digits of a number in this list. If it's here, the number started in Farmington with the carrier shown. If it isn't, check the Utah page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 385-220 | Onvoy | Internet / business phone carrier | 2013 |
| 385-316 | MCImetro (Verizon Business) | Internet / business phone carrier | 2019 |
| 385-381 | AT&T Mobility | Mobile carrier | 2017 |
| 385-403 | Onvoy | Internet / business phone carrier | 2021 |
| 385-462 | AT&T (local phone) | Local phone company | 2022 |
| 385-874 | TON80 Communications | Internet / business phone carrier | 2022 |
| 385-988 | Bandwidth | Internet / business phone carrier | 2015 |
| 801-218 | Teleport Communications America | Internet / business phone carrier | – |
| 801-402 | CenturyLink / Lumen | Local phone company | – |
| 801-447 | CenturyLink / Lumen | Local phone company | – |
| 801-451 | CenturyLink / Lumen | Local phone company | – |
| 801-923 | Onvoy | Internet / business phone carrier | 2006 |
| 801-934 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 801-939 | MCImetro (Verizon Business) | 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.