The requested vessel with name DIANA STAR and MMSI:0 and IMO:5427772 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
DIANA STAR N/A 367791370 Jul 04, 2017 17:13 UTC

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