The requested vessel with name ENG MASCARENHAS and MMSI:710777771 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
ENG MASCARENHAS 8716227 710031000 FORTALEZA Jan 21, 2017 12:19 UTC

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