That is the VIN (Vehicle Identification Number) of a car. It is the serial number of the car. It is stamped or plated in about 10 different places on the car so it can be tracked in the case of theft or fraud.
Standing outside of the car, stand near the windshield on the drivers side.At the bottom of the windshield there is a number stamped were the windshield meets the glass. There should be 17 digits. Good Luck!!!!!!!!