Phone numbers in Newfranken, Wisconsin
Newfranken has 3 phone prefixes in area code 920.
Biggest holders: AT&T Mobility, Onvoy, Brightspeed Of Central Wisconsin. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 33%
- Local phone company 33%
- Internet / business phone carrier 33%
Every prefix in Newfranken
Search the first six digits of a number in this list. If it's here, the number started in Newfranken with the carrier shown. If it isn't, check the Wisconsin page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 920-677 | AT&T Mobility | Mobile carrier | 2017 |
| 920-790 | Onvoy | Internet / business phone carrier | 2021 |
| 920-866 | Brightspeed Of Central Wisconsin | 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.