Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '2001:df0:59c0::'
+108
ERRNo PTR record availible DNS server 'ns2.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.c.9.5.0.f.d.0.1.0.0.2.ip6.arpa'.