The requested vessel with name DIOGENES and MMSI:244820326 and IMO:0 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
DIOGENES N/A 244140693 Dec 04, 2017 14:33 UTC
DIOGENES N/A 211392830 Oct 09, 2017 13:58 UTC

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