Wolfpacks U-642 was part of
U-642 operated with the following Wolfpacks during its career:
Neuland (4 Mar 1943 - 6 Mar 1943)
Ostmark (6 Mar 1943 - 11 Mar 1943)
Stürmer (11 Mar 1943 - 20 Mar 1943)
Seewolf (21 Mar 1943 - 30 Mar 1943)
Oder (17 May 1943 - 19 May 1943)
Mosel (19 May 1943 - 24 May 1943)
Trutz (1 Jun 1943 - 16 Jun 1943)
Trutz 1 (16 Jun 1943 - 29 Jun 1943)
Geier 3 (30 Jun 1943 - 15 Jul 1943)