The requested vessel with name LETA and MMSI:0 and IMO:5204481 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
LETANI N/A 319115200 Dec 12, 2017 07:23 UTC
LETAVIA 9246683 636090866 KINGSTON Dec 11, 2017 10:39 UTC

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