The requested vessel with name COBAN YILDIZI 12 and MMSI:271041414 and IMO:0 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
COBAN YILDIZI 1 N/A 271040734 Aug 28, 2017 12:53 UTC
COBAN YILDIZI-7 N/A 271041255 Nov 07, 2016 20:45 UTC

Also, you may try to find the vessel in our comprehensive Vessels Database or track this ship on the map.