The requested vessel with name UKRAINA and MMSI:0 and IMO:6723484 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
UKRAINA N/A 272030800 IZMAIL >> Nov 09, 2017 10:34 UTC

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