The requested vessel with name GABRIELLE and MMSI:0 and IMO:6500296 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
GABRIELLE N/A 227066880 Jan 16, 2018 12:30 UTC
GABRIELLE N/A 257737600 Oct 02, 2017 16:15 UTC
GABRIELLE N/A 235098697 Sep 03, 2017 13:11 UTC

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