Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '2a13:27c0:18::'
+199
ERRNo PTR record availible DNS server 'ns3.afrinic.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.1.0.0.0.c.7.2.3.1.a.2.ip6.arpa'.