About The 920 Area Code
The 920 area code covers these major cities:
Green Bay, Appleton, Oshkosh, Fond Du Lac, Sheboygan, Watertown, Manitowoc, and more...
Along with those cities, these counties are also mostly covered:
Brown, Outagamie, Winnebago, Fond Du Lac, Sheboygan, Dodge, Manitowoc, and more...