The requested vessel with name RAN IS 34 and MMSI:251481640 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
RAN IS-261 N/A 251809440 May 01, 2017 21:54 UTC

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