Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '2602:fb10:73::'
+198
ERRNo PTR record availible DNS server 'x.arin.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.7.0.0.0.1.b.f.2.0.6.2.ip6.arpa'.