Military Common Access Card (CAC) ID Office is located at Main Road, Bldg. 1797 Gate 1 Naval Weapons Station Yorktown, Yorktown, VA 23691. Military Common Access Card (CAC) ID Office can be reached by their main phone number at (757) 887-7702. Alternatively, you can reach Military Common Access Card (CAC) ID Office by phone at (757) 887-7715. The listed DSN line is 953-7702. Visit the Military Common Access Card (CAC) ID Office website by clicking here.