The requested vessel with name MONTSERRAT and MMSI:0 and IMO:5241192 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
MONTSERRAT PRIMERO N/A 224010960 Dec 15, 2017 06:41 UTC

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