The requested vessel with name SHINPO MARU and MMSI:0 and IMO:6503028 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
SHINPO MARU N/A 431005643 >JP KOJ Dec 12, 2017 17:25 UTC
SHINPOUMARU NO.8 9186998 431400901 >JP HAN Sep 27, 2017 06:47 UTC

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