Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '2604:180:c1::'
+298
ERRNo PTR record availible DNS server 'dns1.ramnode.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.c.0.0.0.8.1.0.4.0.6.2.ip6.arpa'.