|Shipyard||A.G. Weser, Bremen (Werk 226)|
|Ordered||23 Nov 1914|
|Laid down||27 Jan 1915|
|Launched||29 Apr 1915|
|Commissioned||2 May 1915|
|Successes||6 ships sunk with a total of 3,289 tons. (View ships hit by UC 12)|
16 Mar 1916 - Sunk by explosion of her own mines off Taranto 4027N 1711E. 15 dead|
The Italians raised UC 12, and commissioned it in their navy as the X-1.
The French Memphis, a small military vessel is sunk northwest of Laghi by a mine laid by UC12.