Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '2a12:a900:1::'
+292
ERRNo PTR record availible DNS server 'ns-583.awsdns-08.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.0.0.0.9.a.2.1.a.2.ip6.arpa'.