Wisconsin · Central Time
274 Area Code
Area code 274 is in Wisconsin, serving northeastern and east-central Wisconsin, including Green Bay, Appleton, Oshkosh and Sheboygan. It is in the Central Time zone. It shares its territory with overlay code 920, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 274 area code?
274 is a Wisconsin area code covering northeastern and east-central Wisconsin, including Green Bay, Appleton, Oshkosh and Sheboygan. In the wider directory it sits in the Midwest region.
Cities in the 274 area code
- Green Bay
- Appleton
- Oshkosh
- Sheboygan
- Fond du Lac
- De Pere
- Manitowoc
- Neenah
- Kaukauna
- Menasha
- Watertown
- Beaver Dam
- Two Rivers
- Sturgeon Bay
Counties served by 274
Brown County, Outagamie County, Winnebago County, Sheboygan County, Fond du Lac County, Manitowoc County, Calumet County, Dodge County, Door County and Kewaunee County.
274 overlay codes and dialing
The 274 territory is covered by an overlay of 2 area codes: 274, 920. All of them serve the same geographic area, and the original code is 920. 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 274 area code
274 went into service on May 5, 2023 as an overlay of 920, relieving number exhaustion in the Green Bay 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 274 a scam or spam risk?
274 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 274 number on your screen is no guarantee the caller is in Green Bay, 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 2XX 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
274 area code FAQ
Where is the 274 area code?
The 274 area code is in Wisconsin, covering northeastern and east-central Wisconsin, including Green Bay, Appleton, Oshkosh and Sheboygan, in the Midwest region.
What cities are in the 274 area code?
Cities in the 274 area code include Green Bay, Appleton, Oshkosh, Sheboygan, Fond du Lac, De Pere, Manitowoc, Neenah, Kaukauna and Menasha.
What time zone is 274 in?
274 is in the Central Time zone.
What is the overlay for the 274 area code?
274 shares its territory with 920. Both codes (274, 920) serve the same area, so 10-digit dialing is required for every call.
When did the 274 area code start?
274 went into service on May 5, 2023 as an overlay of 920.
Do I have to dial 10 digits for 274?
Yes. Because 274 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 274 a toll-free or premium code?
No. 274 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.