Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '2a11:bd80::'
+162
ERRNo PTR record availible DNS server 'ns4.apnic.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.d.b.1.1.a.2.ip6.arpa'.