The requested vessel with name LAM SON 04 and MMSI:0 and IMO:8868185 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
LAM SON 01 8119120 574079069 WHITE TIGER OILFIELD Aug 01, 2015 12:25 UTC

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