Minnesota Geospatial Information Office (MnGeo)This data set provides a statewide view of telephone exchange service area boundaries. In addition, LATAs (local access and transport areas) and wire centers are included. At the time of the Bell System breakup, Bell operating companies were restricted to operations within specific areas called LATAs. Wire centers or 'wire center serving area', refers to the area to which local service is provided by one or more switches located at a single point. The wire center serving area is often the same area as the exchange, but a wire center can be equal to a portion of an exchange or to several exchanges combined. The data was compiled in cooperation with the Minnesota Department of Commerce and the Minnesota incumbent local exchange carriers.The data are intended to provide a statewide overview of telephone exchanges and are the official telephone exchange boundary maps in Minnesota. Please contact the Department of Commerce at (651) 539-1500 with questions on any boundary lines.Any changes in telephone exchange service area ownership that were filed with the Minnesota Department of Commerce and completely processed by the Department of Commerce by March 2025 were incorporated into the data set.Filesutil-telephone-exchangeengPublicTelephone Exchange Service Area Boundaries [Minnesota]DatasetsMinnesotaMinnesota Geospatial Commons