The requested vessel with name IVER BEST and MMSI:0 and IMO:9455777 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
IVER BEST 9588275 236111758 DZ MOS Jan 23, 2018 02:54 UTC

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