Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '8.192.0.0'
+256
ERRNo PTR record availible DNS server 'ns2.level3.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.192.8.in-addr.arpa'.