Wolfpacks U-666 was part of
U-666 operated with the following Wolfpacks during its career:
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 2 (16 Jun 1943 - 29 Jun 1943)
Leuthen (15 Sep 1943 - 24 Sep 1943)
Rossbach (24 Sep 1943 - 6 Oct 1943)
Hela (28 Dec 1943 - 1 Jan 1944)
Rügen 6 (5 Jan 1944 - 7 Jan 1944)
Rügen (7 Jan 1944 - 26 Jan 1944)
Stürmer (26 Jan 1944 - 3 Feb 1944)
Igel 1 (3 Feb 1944 - 10 Feb 1944)