Wisconsin Social Security Information Request is a form used to request Social Security information from the Wisconsin Department of Workforce Development (DID). It can be used to obtain information about an individual's Social Security Number, as well as their Social Security earnings history and benefits. There are two types of Wisconsin Social Security Information Request forms: Form SSA-1945-F4 and Form SSA-1945-F6. Form SSA-1945-F4 is used to request Social Security Number verification, and Form SSA-1945-F6 is used to request Social Security earnings history and benefits. Both forms can be completed online or printed and mailed to the DID.