The requested vessel with name RP RHEINFELDEN and MMSI:269057110 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
RP RHEINFELDEN N/A 269057536 MARSHALLDOK Feb 19, 2018 12:06 UTC

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