Wolfpacks U-631 was part of
U-631 operated with the following Wolfpacks during its career:
Falke (28 Dec 1942 - 19 Jan 1943)
Landsknecht (19 Jan 1943 - 28 Jan 1943)
Stürmer (11 Mar 1943 - 20 Mar 1943)
Seewolf (21 Mar 1943 - 30 Mar 1943)
Meise (11 Apr 1943 - 27 Apr 1943)
Rossbach (27 Sep 1943 - 9 Oct 1943)
Schlieffen (14 Oct 1943 - 17 Oct 1943)