| | 10.01.1918: | Cöln II
 is commissioned. |  | Feb - Mar 1918: | Trials and training. |  | 13.05.1918: | Attached to the 2nd reconnaissance group. |  | 19.07.1918: | Unsuccessful attempt to attack the covering forces of the British aircraft carrier Furious
. |  | Aug 1918: | Mine operations near Texel. |  | 19.09 - 11.10.1918: | Repairs. |  | 09.11.1918: | After a false alarm, Cöln II
, Graudenz
 and several torpedo boats try to intercept approaching British ships.
 |  | 19.11.1918: | Sent to Scapa Flow. |  | 21.06.1919: | Scuttled at Scapa Flow. | 
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