Home Base:Yokosuka ND;
27/09/1941-09/01/1942=Sub.Div.3;Sub.Ron.1;6th Fleet;Combined Fleet;
09/01/1942-01/02/1942=Sub.Div.3;6th Fleet;Combined Fleet;
01/02/1942-10/04/1942=Sub.Div.4;Sub.Ron.1;6th Fleet; Combined Fleet;

CEO:Cdr.Sano Takao [50]=15/03/1941-31/03/1941;
CEO:Lt.Cdr.Inoue Noritsune [51]=31/03/1941-15/05/1941;
CEO:Cdr.Shibata Genichi [51]=15/05/1941-27/09/1941;
CO:Cdr.Shibata Genichi [51]=27/09/1941-28/02/1942+KIA;

l/09/1941- e/11/1941=carried Recco A/C; [W.O.Fujita Nobuo];

? Renumbered I-23;
01/02/1942=Damaged;A/C;US.CV.Enterprise;Kwajalein Harbour;
28/02/1942 Sunk=s.Oahu,Hawaii;
Cause unknown;
No Survivors;96 KIA
28/02/1942 Presumed lost; ;
10/04/1942 Removed from Navy List;

[Cdr.Shibata Genichi] [51]
01/10/1941Yokosuka- l/10/1941Yokosuka=Saeki Bay-Kobe(Training);
20/11/1941Yokosuka--23/11/1941Hitokappu Bay=Transit;
26/11/1941Hitokappu Bay-11/01/1942Kwajalein=Hawaii-US.w.Coast,PointArguello-Monterey Bay-Palmyra Is.;
01/02/1942Kwajalein-03/02/1942Kwajalein=e.Kwajalein;
05/02/1942Kwajalein- m/02/1942Sunk=Hawaii+;

Sorties=3

[Cdr.Shibata Genichi] [51]
20/12/1941dam.US.MS.Agwiworld;6771t;w.coastUS;37* 'N;122* 'W;
25/12/1941dam.US.MS.DorothyPhilips;2119t;w.coastUS;36* 'N;121* 'W;

M/S Sunk=0
M/S Damaged =02@008890t
W/S Sunk =0
W/S Damaged =0
Total Sunk =0
Total Damaged =02@008890t
Total =02@008890t