The requested vessel with name HEHAIYOU598 and MMSI:792762639 and IMO:0 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
HEHAIYOU598 N/A 413988111 NANTONG Feb 22, 2018 17:17 UTC

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