Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '3.2.52.0'
+137
ERRNo PTR record availible DNS server 'x1.amazonaws.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.52.2.3.in-addr.arpa'.