How do you find a VIN number on a car you used to own?

To find the VIN (Vehicle Identification Number) of a car you used to own, check any old registration documents, insurance papers, or the title, as these typically list the VIN. You can also look for it on the vehicle itself; common locations include the driver's side dashboard, near the windshield, and on the driver's side door jamb. If you have access to your previous ownership records or any service history, the VIN may also be included there. Additionally, you can contact your state’s Department of Motor Vehicles (DMV) for assistance.