The requested vessel with name ALKEN PERSADA and MMSI:0 and IMO:8622268 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
ALKEN.PERSADA.8 8626317 525006395 SURABAYA May 31, 2017 02:26 UTC

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