In order to get one you'll need your drivers license number and some documentation. We've also linked to available online forms for you to complete for a duplicate license. Two common search terms that people often make are ' how do I find my driver's license number' and 'how to find your drivers license number?' A quick search of our state-specific lost license pages will answer all your questions in detail. Click around DMV.ORG to learn the requirements for your state. Many states require you to file a police report if your driver's license has been lost or stolen or if you know someone is using someone else's driver license numbers.