Unable to find any PTR-records for the specified domain/ip :(
Log
+001
Resolving PTR record of '240a:71:8000::'
+236
ERRNo PTR record availible DNS server 'ns1.apnic.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.1.7.0.0.a.0.4.2.ip6.arpa'.