The requested vessel with name JOHANNA V and MMSI:0 and IMO:7922518 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
JOHANNA V. AMRUM N/A 211227090 Oct 08, 2017 12:44 UTC
JOHANNA V/D WEES N/A 244660196 ZWIJNDRECHT N Feb 23, 2018 09:35 UTC
JOHANNA VAN BORSSUM N/A 211358020 Sep 16, 2017 10:48 UTC

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