dod id number format
1. Find your DoD ID number, a 10-digit number that should be on the back of your Common Access Card. (CAC). It is NOT your Social Security Number (SSN). If your CAC displays your SSN, you can find your. DoD ID number by signing in to the milConnect website (https://www.dmdc.osd.mil/milconnect) and. selecting âMy Profileâ.