The requested vessel with name DEMOS and MMSI:0 and IMO:5082522 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
DEMOSELLE N/A 235087749 Jun 25, 2017 15:04 UTC

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