|Shipyard||A.G. Weser, Bremen (Werk 302)|
|Ordered||28 Feb 1917|
|Laid down||21 Aug 1917|
|Launched||11 May 1918|
|Commissioned||11 Jun 1918|
|Successes||2 ships sunk with a total of 5,098 tons. (View ships hit by UB 129)|
|Fate||31 Oct 1918 - Scuttled at Fiume in position 45.19N, 14.26E on the surrender of Austro-Hungary..|
Served until the end of the was as the Austro-Hungarian U55.