Geographic Regions and Area Codes in Area Code 274

Area Code 274 serves the northeastern regions of Wisconsin, covering a diverse range of cities and counties. This area code overlays the existing 920 area code, meaning both area codes serve the same geographic area. Major cities within this region include:

  • Green Bay
  • Appleton
  • Beaver Dam
  • Sturgeon Bay
  • Berlin
  • Ripon
  • Oshkosh
  • Manitowoc
  • Fond Du Lac
  • Sheboygan
  • Fort Atkinson
  • Watertown

The area code covers a total of 20 counties, including Brown, Calumet, Dodge, Door, Fond Du Lac, Green Lake, Jefferson, Kewaunee, Manitowoc, Oconto, Outagamie, Sheboygan, Waupaca, Waushara, and Winnebago. Adjacent area codes include 231, 262, 534, 608, 715, 906, and 920.