Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '204.239.0.0'
+244
ERRNo PTR record availible DNS server 'ns41.constellix.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.239.204.in-addr.arpa'.