Wolfpacks U-604 was part of
U-604 operated with the following Wolfpacks during its career:
Vorwärts (25 Aug 1942 - 1 Sep 1942)
Streitaxt (20 Oct 1942 - 31 Oct 1942)
Draufgänger (1 Dec 1942 - 11 Dec 1942)
Ungestüm (11 Dec 1942 - 22 Dec 1942)
Knappen (19 Feb 1943 - 25 Feb 1943)