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 9426544 431000275 >JP YKK IS Oct 19, 2017 00:32 UTC
KEIYO MARU N/A 431501371 Oct 17, 2017 10:56 UTC
KEIYO MARU N/A 431501847 Oct 10, 2017 14:47 UTC
KEIYO MARU NO.15 N/A 431010346 >JP KNM Oct 10, 2017 19:30 UTC
KEIYO MARU NO.8 9715907 431005858 >JP SIG Oct 18, 2017 00:41 UTC

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