The requested vessel with name ARBAT and MMSI:0 and IMO:6824707 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
ARBATAX 6601088 247045200 CARLOFORTE Dec 16, 2017 09:35 UTC

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