 She took part in maneuvers and war games, served as station ship at New London, and in the summer of 1922 was flagship of Commander, Atlantic Submarine Flotillas.Reassigned as tender for the Submarine Base at Coco Solo, Canal Zone, "Fulton" arrived there on 4 April 1923, and during the following year joined in exercises on both sides of the Panama Canal Zone as well as making a survey of Almirante Bay, Panama.She returned to Philadelphia on 14 July 1925, and there was decommissioned and placed in reserve on 5 October.