Check your Selective Service registration card or confirmation letter
Visit the Selective Service System website and use the registration verification tools
Call the Selective Service System at 1-888-655-1825
Check any records from when you registered, such as school, job, or government paperwork
Ask your parent or guardian if they kept your registration information
If you registered online, log in to any account you used during registration
If you never registered, you will not have a Selective Service number