The requested vessel with name BLUE CLOUD and MMSI:0 and IMO:5046621 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
BLUE CLOUD N/A 235004516 Feb 17, 2018 16:30 UTC
BLUE CLOUD N/A 338128684 Sep 16, 2017 19:43 UTC

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