Find your Selective Service number
Selective Service assigns a number to each person who registers. Learn how to check your registration, look up your number, and get proof that you registered.
Selective Service mails you a registration card and acknowledgment letter to confirm that you registered. Call the Selective Service System at 1-847-688-6888 if you do not receive these documents within 90 days after registering.
Find your registration number
- Use the search tool to find your Selective Service number
- Download an acknowledgment letter verifying your registration
Call 1-888-655-1825 if you cannot find your registration number using the search tool.
Replace a Selective Service card
Selective Service does not issue replacement cards. Instead, you can get proof of registration online. Once you verify that you are registered, download a letter of acknowledgment. This letter is proof that you registered with Selective Service.
Correct your information with Selective Service
If the information that Selective Service has about you is wrong or out of date, you will need to correct it.
Inform Selective Service to correct a mistake or report a name change. Call the agency at 1-847-688-6888, between 9:00 AM and 5:00 PM, ET.
Change of address
Until January 1 of the year you turn 26, you will need to update your address with selective service whenever you move.
LAST UPDATED: December 6, 2023