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 AKUREYRI ICELAND Feb 15, 2018 12:12 UTC

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