The requested vessel with name HORYU MARU and MMSI:0 and IMO:6414289 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
HORYU MARU N/A 431000357 JP HKT Oct 22, 2017 12:15 UTC
HORYU MARU N/A 431001133 Oct 11, 2017 05:26 UTC

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