The requested vessel with name HELLEFISK and MMSI:0 and IMO:5147061 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
HELLEFISK N/A 257203020 FROYA Oct 26, 2017 10:11 UTC
HELLEFISKEN N/A 219020228 Oct 10, 2017 06:09 UTC

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