Wisconsin Department of AdministrationThis polygon data layer represents telephone exchange boundaries for Wisconsin as of November 1, 2000. The dataset was originally published by the Wisconsin Department of Administration in 2000.[his data layer is a polygon shapefile of the telephone exchange boundaries in Wisconsin, derived from the Wisconsin Department of Natural Resources' 1:24,000 landnet coverage. 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/gmgsv40jz5nengPublicTelephone Exchange Boundaries Wisconsin 2000DatasetsWisconsin2000-11-01American Geographical Society Library – UWM Libraries