Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '23.239.241.0'
+226
ERRNo PTR record availible DNS server 'ns3.getgo.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.241.239.23.in-addr.arpa'.