Home Base:Yokosuka ND;
30/11/1926-15/01/1927=Yokosuka ND;
15/01/1927-01/07/1927=Sub.Div.7; Sub.Ron2; 2ndFleet; Combined Fleet;
01/07/1927-15/09/1927=Sub.Div.7; Yokosuka Defence Div.; Yokosuka ND;
15/09/1927-01/05/1929=Sub.Div.7; Sub.Ron2; 2ndFleet; Combined Fleet;
01/05/1929-01/08/1930=Yokosuka ND;
01/08/1930-01/12/1930=Sub.Div.8; Yokosuka ND;
01/12/1930-01/10/1931=Sub.Div.8; Sub.Ron.1; 1stFleet; Combined Fleet;
01/10/1931-01/12/1931=Sub.Div.8; Yokosuka Defence Div.; Yokosuka ND;
01/12/1931-01/10/1932=Sub.Div.8; Sub.Ron.1; 1stFleet; Combined Fleet;
01/10/1932-15/11/1933=Sub.Div.8; Yokosuka Defence Div.; Yokosuka ND;
15/11/1933-15/11/1935=Sub.Div.7; Sub.Ron.1; 1stFleet; Combined Fleet;
15/11/1935-20/01/1936=Sub.Div.7; Yokosuka Defence Ron.; Yokosuka ND;
20/01/1936-15/12/1938=Sub.Div.7; Sub.Ron.1; 1stFleet; Combined Fleet;
15/12/1938-15/11/1939=Sub.Div.7; Submarine School, Kure; Yokosuka ND;
15/11/1939-15/11/1940=Sub.Div.7; 3rd Reserve; Yokosuka ND;
15/11/1940-20/08/1942=Sub.Div.7; Sub.Ron.2; 6thFleet; Combined Fleet;
20/08/1942-20/01/1943=Sub.Div.7; 6th Fleet; Combined Fleet;

15/11/1935-01/12/1936 ?=Reserve;
20/11/1939-27/07/1940 ?=Reserve;

CEO:Lt.Cdr.Ogino Chuichiro [37]=01/05/1926-30/11/1926;
CO:Lt.Cdr.Ogino Chuichiro [37]=30/11/1926-15/01/1928;
CO:Lt.Cdr.Sekino Akira [38]=15/01/1928-15/12/1928;
CO:Lt.Cdr.Michino Kiyoshi [41]=15/12/1928-01/06/1929;
CO:Lt.Cdr.Harada Kaku [41]=01/06/1929-01/12/1932;
CO:Cdr.Ishizaki Noboru [42]=01/12/1932-15/11/1933;
CO:Cdr.Uozumi Jisaku [42]=15/11/1933-01/11/1934;
CO:Lt.Cdr.Matsumura Midori [48]=01/11/1934-21/10/1935;
(+)CO:Lt.Cdr./Cdr:Kume Ikuji [46]=21/10/1935-15/11/1935;
(+)CO:Lt.Cdr.Nagai Hiroaki [48]=15/11/1935-06/01/1936;
(+)CO:Lt.Cdr.Kobayashi Hajime [48]=06/01/1936-26/03/1936;
CO:Lt.Cdr.Endo Keiyu [46]=26/03/1936-02/11/1936;
CO:Lt.Cdr.Kobayashi Hajime [48]=02/11/1936-01/12/1936;
CO:Lt.Cdr.Matsuo Yoshiyasu [47]=01/12/1936-01/12/1937;
CO:Lt.Cdr.Ishikawa Nobuo [49]=01/12/1937-15/11/1938;
CO:Cdr.Kobayashi Hajime [48]=15/11/1938-24/04/1939;
CO:Lt.Cdr.Iura Shojiro [51]=24/04/1939-20/11/1939;
(+)CO:Cdr.Fujii Akiyoshi [49]=20/11/1939-26/07/1940;
CO:Lt.Cdr.Kinashi Takakazu [51]=26/07/1940-05/11/1940;
CO:Cdr.Tonozuka Kinzo [50]=05/11/1940-20/05/1942;
CO:Lt.Cdr/Cdr.Togami Ichiro [51]=20/05/1942-09/12/1942+KIA;

31/12/1941 Shelled Nawiliwili Harbor,Kauai,Hawaii;

01/11/1924 Renumbered I-3;
12/07/1928 Damaged, run aground, minor dam.
18/05/1937 Damaged, internal explosion;
/08/1942 Converted to Transport Sub;
09/12/1942 Sunk=3m.ne Kamimbo Bay,Guadalcanal,Solomons;09*12'S;159*42'E;
Torpedo=US.PT59;
4 Survivors; 90 KIA;
20/01/1943 Removed from Navy List;

[Lt.Cdr. Matsumura Midori] [48]
29/03/1935Sasebo-04/04/1935Sasebo=c.Chinese waters;Training;
[Lt.Cdr.Matsuo Yoshiyasu] [47]
27/03/1937Sasebo-06/04/1937Ariake Bay=Tsingtao Area;Training;
20/08/1937Japan-23/08/1937Shanghai=Escort sortie(BatDiv1+BatDiv3);
[Cdr.Tonozuka Kinzo] [50]
16/11/1941Yokosuka-22/01/1942Kwajalein=Hawaii,Mashall Is;
24/01/1942Kwajalein-01/02/1942Yokosuka=Transit,(Repairs);
12/02/1942Yokosuka-16/02/1942Palau=Transit;
17/02/1942Palau-22//02/1942StaringBay=Transit;
22/02/1942StaringBay-14/03/1942Penang=IndianOcean-Freemantle-SharkBay;
28/03/1942Penang-15/04/1942Singapore=Indian Ocean-Ceylon;
21/04/1942Singapore-01/05/1942Yokosuka=Transit(Repairs);
[Cdr. Togami Ichiro] [51]
11/06/1942Yokosuka-18/06/1942Kiska=Transit;
18/06/1942Kiska- l/06/1942Kiska=Adak-Amchitka;
30/06/1942Kiska-20/07/1942Kiska=s.Unimak Passage;
25/07/1942Kiska-01/08/1942Yokosuka=Transit(Repairs);
08/09/1942Yokosuka-15/09/1942Truk=Transit;
17/09/1942Truk-26/09/1942Shortland=Solomons-e.NewGuinea;
27/09/1942 Shortland-01/10/1942 Shortland=Guadalcanal(Supply);
03/10/1942 Shortland-04/10/1942 Shortland=Vanguru Is.(Supply,aborted);
04/10/1942 Shortland-05/10/1942 Shortland=New Georgia Is.(Supply,aborted);
05/10/1942 Shortland-06/10/1942 Shortland=New Georgia Is.(Supply,aborted);
10/10/1942 Shortland-03/11/1942 Truk=Solomons,Indispensable Reef,(Repairs);
19/11/1942 Truk-22/11/1942 Rabaul=(Supply,20t)
24/11/1942 Rabaul-25/11/1942 Shortland=Transit;
26/11/1942 Shortland-30/11/1942 Shortland=Guadalcanal(Supply);
01/12/1942 Shortland-05/12/1942 Shortland=Guadalcanal(Supply);
07/12/1942Shortland-09/12/1942=Guadalcanal(Supply);+

Sorties=16

[Cdr.Tonozuka Kinzo] [50]
02/03/1942damBr.MS.Narbada;8988t;w.Freemantle.31*33'S;114*11'E;
07/04/1942damBr.MS.Elmdale;4812t;IndianOcean.06*52'N;78*50'E;
08/04/1942sunkBr.MS.Fultala;5051t;IndianOcean.06*52'N;76*54'E;

M/S Sunk =01@005051t
M/S Damaged =02@013860t
W/S Sunk =0
W/S Damaged =0
Total Sunk =01@005051t
Total Damaged =02@013860t
Total =03@018911t