The requested vessel with name GALLIVANTER and MMSI:235095881 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
GALLIVANTER N/A 503026860 Jan 28, 2018 02:21 UTC
GALLIVANTER N/A 232007720 Jan 08, 2018 15:00 UTC
GALLIVANTER OF DART N/A 235032215 Sep 12, 2017 10:47 UTC

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