The requested vessel with name MEXICAN DEFENDER and MMSI:345076006 and IMO:0 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
MEXICAN DEFENDER N/A 345076003 Apr 04, 2017 16:32 UTC
MEXICAN DEFENDER N/A 345076005 Nov 16, 2016 21:05 UTC

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