The requested vessel with name SOBERANIA 16 and MMSI:775996341 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
SOBERANIA 25 N/A 775996501 Dec 14, 2016 14:05 UTC

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