The requested vessel with name HOI AN and MMSI:0 and IMO:5127865 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
HOI AN N/A 235078632 Jul 27, 2017 18:26 UTC

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