The requested vessel with name DGM188 and MMSI:212201265 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
DGMJAGJ N/A 585236525 Dec 12, 2017 04:30 UTC

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