Wisconsin · Central Time
353 Area Code
Area code 353 is in Wisconsin, serving southwestern and south-central Wisconsin, including Madison, La Crosse and Janesville. It is in the Central Time zone. It shares its territory with overlay code 608, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 353 area code?
353 is a Wisconsin area code covering southwestern and south-central Wisconsin, including Madison, La Crosse and Janesville. In the wider directory it sits in the Midwest region.
Cities in the 353 area code
- Madison
- Janesville
- La Crosse
- Beloit
- Sun Prairie
- Fitchburg
- Middleton
- Verona
- Stoughton
- Baraboo
- Monroe
- Platteville
- Tomah
- Portage
Counties served by 353
Dane County, Rock County, La Crosse County, Sauk County, Grant County, Green County, Columbia County, Iowa County, Monroe County and Vernon County.
353 overlay codes and dialing
The 353 territory is covered by an overlay of 2 area codes: 353, 608. All of them serve the same geographic area, and the original code is 608. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 353 area code
353 went into service on September 15, 2023 as an overlay of 608, relieving number exhaustion in the Madison area. Rather than splitting the region, the overlay lets existing customers keep their numbers while new lines draw from the added code. Learn more in our overlay guide.
Is 353 a scam or spam risk?
353 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 353 number on your screen is no guarantee the caller is in Madison, WI or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other Wisconsin area codes
Explore more
See every code in Wisconsin, compare codes across the Midwest region, or view all Central Time codes. You can also browse the 3XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
353 area code FAQ
Where is the 353 area code?
The 353 area code is in Wisconsin, covering southwestern and south-central Wisconsin, including Madison, La Crosse and Janesville, in the Midwest region.
What cities are in the 353 area code?
Cities in the 353 area code include Madison, Janesville, La Crosse, Beloit, Sun Prairie, Fitchburg, Middleton, Verona, Stoughton and Baraboo.
What time zone is 353 in?
353 is in the Central Time zone.
What is the overlay for the 353 area code?
353 shares its territory with 608. Both codes (353, 608) serve the same area, so 10-digit dialing is required for every call.
When did the 353 area code start?
353 went into service on September 15, 2023 as an overlay of 608.
Do I have to dial 10 digits for 353?
Yes. Because 353 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 353 a toll-free or premium code?
No. 353 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.