User:Bellhalla/Suggested U-boat redirects/Austria-Hungary/German

German U-boats operated under Austrian flag
For a time (before Italy entered the war?) many German submarines operated in the Mediterranean under German command but under the flag of Austria-Hungary. Most Austro-Hungarian U-boat numbers were associated with only one German U-boat; those are presented in the first list below. Several Austro-Hungarian U-boat numbers referred to more than one German U-boat; those are reflected in the second list below.

Designations used only once
This is a list of Austro-Hungarian U-boat numbers that were associated with exactly one German U-boat.