Preceded by:
NoneSucceeded by:
None| Ship | Code | Builder | Laid | Launch | Comm | Decomm | Fate | ||
 |
I-21 / I-121 | Kawasaki | 20/10/1924 | 30/03/1926 | 31/03/1927 | 09/1945 | Scuttled inactive | ||
|
I-22 / I-122 † | Kawasaki | 28/02/1925 | 08/11/1926 | 28/10/1927 | 10/06/1945 | † | Loss by submarine | |
|
I-23 / I-123 † | Kawasaki | 12/06/1925 | 19/03/1927 | 28/04/1928 | 29/08/1942 | † | Loss by surface ship | |
|
I-24 / I-124 † | Kawasaki | 17/04/1926 | 12/12/1927 | 10/12/1928 | 20/01/1942 | † | Loss by surface ship |