The requested vessel with name ZAMZAM and MMSI:0 and IMO:5267275 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
ZAMZAM 8410299 671317000 PORTSAID Feb 18, 2018 03:53 UTC
ZAMZAM N/A 408903427 Dec 29, 2017 13:11 UTC
ZAMZAM ALI1 N/A 677035200 MORONI COMORES Sep 12, 2016 07:07 UTC

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