Phone numbers in Ripon, Wisconsin
Ripon has 5 phone prefixes in area codes 274, 920.
Biggest holders: Brightspeed Of Western Wisconsin, T-Mobile (including Sprint), Charter / Spectrum. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 20%
- Local phone company 40%
- Internet / business phone carrier 40%
Every prefix in Ripon
Search the first six digits of a number in this list. If it's here, the number started in Ripon with the carrier shown. If it isn't, check the Wisconsin page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 274-210 | T-Mobile (including Sprint) | Mobile carrier | 2025 |
| 920-745 | Brightspeed Of Western Wisconsin | Local phone company | – |
| 920-748 | Brightspeed Of Western Wisconsin | Local phone company | – |
| 920-896 | Charter / Spectrum | Internet / business phone carrier | 2007 |
| 920-990 | Onvoy | Internet / business phone carrier | 2019 |
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.