The requested vessel with name METAN and MMSI:0 and IMO:6809939 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
METANOIA N/A 444321079 XXXX May 26, 2016 21:34 UTC

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