Phone numbers in Sheboygan Falls, Wisconsin
Sheboygan Falls has 6 phone prefixes in area code 920.
Biggest holders: Level 3 (Lumen), Onvoy, AT&T (local phone). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 17%
- Local phone company 17%
- Internet / business phone carrier 67%
Every prefix in Sheboygan Falls
Search the first six digits of a number in this list. If it's here, the number started in Sheboygan Falls with the carrier shown. If it isn't, check the Wisconsin page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 920-234 | Level 3 (Lumen) | Internet / business phone carrier | 2012 |
| 920-335 | Onvoy | Internet / business phone carrier | – |
| 920-467 | AT&T (local phone) | Local phone company | – |
| 920-550 | Level 3 (Lumen) | Internet / business phone carrier | 2005 |
| 920-802 | Onvoy | Internet / business phone carrier | 2019 |
| 920-870 | Boost / Virgin Mobile | Mobile 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.