Area Code 274

Area Code 274 History:

05/05/2023

Area code 274 was put into service as an all services overlay of area code 920. Ten digit dialing (area code + seven digit number) is necessary in the 274/920 overlay because different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.

Counties in Wisconsin officially within area code 274 include:

Brown County, Calumet County, Columbia County, Dodge County, Door County, Fond du Lac County, Green Lake County, Jefferson County, Kewaunee County, Manitowoc County, Marinette County, Marquette County, Oconto County, Outagamie County, Shawano County, Sheboygan County, Waupaca County, Waushara County, and Winnebago County.

Major cities or places in Wisconsin officially within area code 274 include:

Area code 274 serves most of northeastern Wisconsin including the larger cities and communities of Appleton, De Pere, Fond Du Lac, Green Bay, Manitowoc, Neenah, Oshkosh, Sheboygan, and Watertown in addition to many smaller communities within the service area.