Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '13.248.122.0'
+132
ERRNo PTR record availible DNS server 'x2.amazonaws.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.122.248.13.in-addr.arpa'.