Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '5.180.191.0'
+274
ERRNo PTR record availible DNS server 'ns-2.awsdns-00.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.191.180.5.in-addr.arpa'.