Wisconsin Department of AdministrationThis polygon data layer represents area codes for Wisconsin in 2000. The dataset was originally published by the Wisconsin Department of Administration in 2000.[This data layer is a polygon shapefile of the area codes in Wisconsin, derived from the Wisconsin Telephone Exchange Boundaries. This data set is referenced to the Wisconsin Transverse Mercator (WTM) projection system, North American Datum 1983 with the 1991 adjustment (NAD83/91).]Shapefileark:/77981/gmgstm7210qengPublicArea Codes Wisconsin 2000DatasetsWisconsin2000American Geographical Society Library – UWM Libraries