The requested vessel with name SILVER DAWN and MMSI:0 and IMO:5207794 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
SILVER DAWN N/A 250000219 Jan 02, 2018 14:25 UTC
SILVER DAWN OB333 N/A 235003969 : Jan 12, 2018 07:12 UTC

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