United States Government--u S Customs Service, Washington Dc District Office Dulles Airport, Asst District Director Commercial Operations Dulles, VA 20166 Phone : (703) 661-3660 Business Category Government Offices & Public Schools United States Government--u S Customs Service, Washington Dc District Office Dulles Airport, District Director Dulles Airport Dulles, VA 20166 Phone : (703) 661-3660 Business Category Government Offices & Public Schools U S Customs Service Washington Dc District Dulles, VA 20101 Phone : (703) 661-3660 Business Category Government Offices-Federal Government Offices & Public Schools