The requested vessel with name BORIS SAFONOV and MMSI:0 and IMO:6825634 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
BORIS SAFONOV N/A 273367930 AZOV Sep 22, 2016 21:00 UTC

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