The requested vessel with name SNAEFELL and MMSI:0 and IMO:5332551 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
SNAEFELL 6828923 251079000 FISHING GROUND Jul 26, 2017 22:52 UTC

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