16/01/1922-01/12/1925=Sub.Div.4; Sub.Ron.1;1st Fleet;
01/12/1925-01/04/1926=Sub.Div.4; Yokosuka Defence Division; Yokosuka ND;
01/04/1926-01/08/1926=Sub.Div.4; Reserve; Yokosuka ND;
01/08/1926-01/12/1927=Sub.Div.4; Yokosuka Defence Division; Yokosuka ND;
01/12/1927-30/11/1929=Sub.Div.4; Yokosuka ND;
30/11/1929-15/11/1934=Sub.Div.4; Yokosuka Defence Division; Yokosuka ND;
15/11/1934-15/12/1938=Sub.Div.4; Yokosuka ND;
15/12/1938-01/04/1940=Sub.Div.4; 4th Reserve; Yokosuka ND;

CEO:Lt.Cdr.Matsuoka Hirota [35]=01/10/1921-21/01/1922;
CO:Lt.Cdr.Matsuoka Hirota [35]=21/01/1922-01/12/1922;
(A)CO:Lt.Cdr.Sekimoto Orinosuke [38]=01/12/1922-01/12/1923;
CO:Lt.Cdr.Sekimoto Orinosuke [38]=01/12/1923-01/12/1924;
CO:Lt.Harada Kaku [41]=01/12/1924-01/12/1925;
CO:Lt.Kijima Moritsugu [44]=01/12/1925-01/04/1928;
CO:Lt.Sasaki Hankyu [45]=01/04/1928-30/11/1929;
CO:Lt.Cdr.Nagai Mitsuru [45]=30/11/1929-01/12/1931;
CO:Lt.Kobayashi Hajime [48]=01/12/1931-01/09/1933;
CO:Lt.Cdr.Nagai Hiroaki [48]=01/09/1933-15/11/1933;
(+)CO:Lt.Yamamoto Akira [49]=15/11/1933-15/11/1934;
(+)CO:Lt.Tonozuka Kinzo [50]=15/11/1934-15/12/1934;
CO:

01/11/1924 Renamed RO-56;
01/04/1940 Removed from Navy List;
01/04/1940 Renamed Haisen No-13;