The requested vessel with name CUU LONG and MMSI:0 and IMO:7028908 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
CUU LONG 8754425 574999530 BK4_WHITE TIGER Aug 01, 2015 12:45 UTC
CUU LONG GAS 9143142 574197187 MAOMING-CHINA, Nov 20, 2017 00:26 UTC

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