Phone numbers in Chilton, Wisconsin
Chilton has 6 phone prefixes in area code 920.
Biggest holders: Verizon Wireless, Metro Southwest Pcs, Llp, UScellular. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 67%
- Local phone company 17%
- Internet / business phone carrier 17%
Every prefix in Chilton
Search the first six digits of a number in this list. If it's here, the number started in Chilton with the carrier shown. If it isn't, check the Wisconsin page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 920-340 | Metro Southwest Pcs, Llp | Mobile carrier | 2005 |
| 920-418 | UScellular | Mobile carrier | – |
| 920-464 | Verizon Wireless | Mobile carrier | 2002 |
| 920-483 | Verizon Wireless | Mobile carrier | 2002 |
| 920-522 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 920-849 | Frontier | 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.