Unable to find any PTR-records for the specified domain/ip :(
Log
+001
Resolving PTR record of '2600:1fa0:c02c::'
+148
ERRNo PTR record availible DNS server 'x1.amazonaws.com' 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.c.2.0.c.0.a.f.1.0.0.6.2.ip6.arpa'.