The requested vessel with name KYOEI MARU NO1 and MMSI:0 and IMO:5266087 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
KYOEI MARU NO.18 N/A 431300806 Jan 21, 2018 22:45 UTC
KYOEI MARU NO.2 8510063 572267210 >JP ISG OFF Sep 08, 2016 21:45 UTC

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