Founded in the 1790’s as part of the Department of Treasury, the United States Coast Guard is now part of the Department of Transportation, protecting U.S. interests at home and around the world.This web site reflects a commitment to provide our global partners and American citizens with easy and timely access to accurate and essential maritime information and services. 1250 Air Force Pentagon Washington DC 20330-1250 COMM 703-695-7108, DSN 225-7108