The requested vessel with name MAZO and MMSI:0 and IMO:7212327 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
MAZOCAHUI 4 N/A 345880353 Sep 29, 2014 17:21 UTC
MAZOVIA 9010814 311000330 SWIN=>YSTAD=>SWIN Dec 11, 2017 19:27 UTC
MAZOWSZE 9386914 311005700 POLICE Dec 11, 2017 19:27 UTC

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