The requested vessel with name MED EXPLORER and MMSI:0 and IMO:6618184 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
MED EXPLORER N/A 428168000 Dec 04, 2017 19:03 UTC
MED EXPLORER N/A 306025000 Mar 09, 2017 19:24 UTC

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