The requested vessel with name WESTPORT and MMSI:0 and IMO:5388550 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
WESTPORT N/A 316001892 Aug 21, 2017 06:04 UTC
WESTPORT N/A 366896950 Aug 16, 2017 06:13 UTC
WESTPORT CG DELTA N/A 250004449 May 30, 2017 17:22 UTC

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