The requested vessel with name WHITE RIVER and MMSI:0 and IMO:5388938 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
WHITE RIVER N/A 224200250 Feb 17, 2018 18:20 UTC

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