The requested vessel with name PACIFIC PRINCESS and MMSI:518629000 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
PACIFIC PRINCESS N/A 338147666 Feb 18, 2018 18:03 UTC
PACIFIC PRINCESS 9187887 310504000 ESPERANCE, AU Feb 18, 2018 14:08 UTC
PACIFIC PRINCESS N/A 244850007 Oct 18, 2016 14:48 UTC

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