13th U-boat Flotilla Number Type Service in 13. U-212 VIIC June 1, 1943 - October 31, 1943 U-251 VIIC June 1, 1943 - June 30, 1943 U-255 VIIC June 1, 1943 - November 30, 1943 U-277 VIIC November 1, 1943 - May 1, 1944 U-278 VIIC September 1, 1944 - May 8, 1945 U-286 VIIC November 5, 1944 - February 28, 1945 U-288 VIIC February 1, 1944 - April 3, 1944 U-289 VIIC May 1, 1944 - May 31, 1944 U-293 VIIC/41 September 5, 1944 - May 8, 1945 U-294 VIIC/41 November 6, 1944 - February 28, 1945 U-295 VIIC/41 October 1, 1944 - March 31, 1945 U-299 VIIC/41 November 5, 1944 - February 28, 1945 U-302 VIIC June 1, 1943 - October 31, 1943 U-307 VIIC November 1, 1943 - April 29, 1945 U-310 VIIC September 5, 1944 - May 8, 1945 U-312 VIIC September 1, 1944 - May 8, 1945 U-313 VIIC September 15, 1944 - May 8, 1945 U-315 VIIC September 15, 1944 - May 8, 1945 U-318 VIIC/41 November 5, 1944 - February 28, 1945 U-354 VIIC June 1, 1943 - August 24, 1944 U-360 VIIC July 1, 1943 - April 2, 1944 U-362 VIIC March 1, 1944 - September 5, 1944 U-363 VIIC September 15, 1944 - May 8, 1945 U-365 VIIC June 9, 1944 - December 13, 1944 U-366 VIIC March 1, 1944 - March 5, 1944 U-387 VIIC November 1, 1943 - December 9, 1944 U-425 VIIC September 15, 1944 - February 17, 1945 U-427 VIIC November 5, 1944 - February 28, 1945 U-586 VIIC June 1, 1943 - September 30, 1943 U-601 VIIC June 1, 1943 - February 25, 1944 U-622 VIIC June 1, 1943 - July 24, 1943 U-625 VIIC June 1, 1943 - October 31, 1943 U-636 VIIC November 1, 1943 - April 21, 1945 U-639 VIIC June 1, 1943 - August 28, 1943 U-668 VIIC June 1, 1944 - May 8, 1945 U-673 VIIC June 21, 1944 - July 31, 1944 U-703 VIIC June 1, 1943 - September 16, 1944 U-711 VIIC June 1, 1943 - May 4, 1945 U-713 VIIC November 1, 1943 - February 24, 1944 U-716 VIIC October 1, 1944 - March 31, 1945 U-737 VIIC July 1, 1943 - December 19, 1944 U-739 VIIC January 1, 1944 - May 8, 1945 U-742 VIIC June 1, 1944 - July 18, 1944 U-771 VIIC October 1, 1944 - November 11, 1944 U-921 VIIC June 1, 1944 - October 2, 1944 U-956 VIIC October 1, 1944 - May 8, 1945 U-957 VIIC October 1, 1944 - October 21, 1944 U-959 VIIC March 1, 1944 - May 2, 1944 U-965 VIIC October 1, 1944 - March 30, 1945 U-968 VIIC March 1, 1944 - May 8, 1945 U-992 VIIC October 1, 1944 - May 8, 1945 U-994 VIIC November 5, 1944 - May 8, 1945 U-995 VIIC/41 June 1, 1944 - February 28, 1945 U-997 VIIC/41 June 1, 1944 - March 1, 1945 U-1163 VIIC/41 October 1, 1944 - May 8, 1945