The requested vessel with name MARCONI and MMSI:244740698 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
MARCONI N/A 244660850 AMSTERDAM Jul 03, 2017 14:29 UTC
MARCONI N/A 219924000 Jun 28, 2017 14:02 UTC
MARCONI+81768 N/A 279202573 SREMSKI KARLOVCI Feb 19, 2018 12:12 UTC

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