The requested vessel with name PENNANT and MMSI:0 and IMO:5228566 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
PENNANT N/A 205414530 Oct 29, 2016 03:46 UTC
PENNANT N/A 205414230 Jul 20, 2016 19:07 UTC
PENNANT BAY N/A 316035929 Feb 15, 2018 20:27 UTC

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