The requested vessel with name YONG RONG 999 and MMSI:603666743 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
YONG RONG 128 N/A 542338110 PENPANG Feb 18, 2018 10:37 UTC

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