Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '165.140.171.0'
+158
ERRNo PTR record availible DNS server 'ns-431.awsdns-53.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.171.140.165.in-addr.arpa'.