The requested vessel with name KEIYO MARU and MMSI:0 and IMO:6408682 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
KEIYO MARU N/A 431501371 Dec 12, 2017 18:04 UTC
KEIYO MARU 9426544 431000275 >JP KWS DU Dec 12, 2017 17:49 UTC
KEIYO MARU N/A 431501847 Dec 09, 2017 14:14 UTC
KEIYO MARU NO.15 N/A 431010346 >JP MKW Dec 12, 2017 13:39 UTC
KEIYO MARU NO.8 9715907 431005858 >JP WAK OFF Dec 12, 2017 18:06 UTC

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