Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '15.158.65.0'
+326
ERRNo PTR record availible DNS server 'x3.amazonaws.org' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.65.158.15.in-addr.arpa'.