The requested vessel with name SEA MASTER XVIII and MMSI:563032390 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
SEA MASTER XVIII N/A 563046620 Feb 04, 2018 09:27 UTC

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