Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '91.228.74.0'
+331
ERRNo PTR record availible DNS server 'ns3.lacnic.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.74.228.91.in-addr.arpa'.