Wisconsin Area Codes
Compare 8 in-service area codes assigned to Wisconsin. Explore each code’s introduction date, overlays, possible time zones, and public prefix records.
Wisconsin numbering at a glance
- In-service area codes
- 8
- Time-zone labels in NANPA data
- Central
- Listed in-service or assigned prefixes
- 3,671 · source dated 2026-09-29
These are numbering assignments. The counts do not represent active phone numbers, current carriers, or a caller’s physical location.
Compare area codes in Wisconsin
| Code | Introduced | Other codes in overlay | Time zones | Listed prefixes |
|---|---|---|---|---|
| 262 | 25-Sep-1999 | None listed | Central | 632 |
| 274 | 05-May-2023 | 920 | Central | 28 |
| 353 | 15-Sep-2023 | 608 | Central | 13 |
| 414 | 01-Jan-1947 | None listed | Central | 551 |
| 534 | 14-Aug-2010 | 715 | Central | 94 |
| 608 | 01-Jan-1955 | 353 | Central | 785 |
| 715 | 01-Jan-1947 | 534 | Central | 784 |
| 920 | 26-Jul-1997 | 274 | Central | 784 |
Source: NANPA NPA database, dated 2026-09-28. Prefix counts: NANPA US assignment report. View official area-code maps.
Overlay groups in Wisconsin
Codes in an overlay group can serve the same broad numbering area. A person may keep a number after moving, and the displayed number may be spoofed.
Find a number in Wisconsin
Open an area-code page above to check a prefix and possible time zones. You can also search US telephone rate-center names; those names are not exact city coverage.
A code cannot verify the owner of a number. If an unexpected caller asks for money or sensitive information, verify the claim independently.