Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '185.255.54.0'
+637
ERRNo PTR record availible DNS server 'ns2.xtom.de' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.54.255.185.in-addr.arpa'.