The requested vessel with name HUA WAN and MMSI:0 and IMO:7520217 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
HUA WANG 8219619 636010226 HONG KONG YOU LIAN Dec 18, 2017 15:18 UTC

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