The requested vessel with name DOLPHIN VIII and MMSI:0 and IMO:6616447 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
DOLPHIN VIII N/A 367102530 Dec 14, 2017 20:09 UTC

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