Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '2406:daa0:e04c::'
+321
ERRNo PTR record availible DNS server 'pdns1.ultradns.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.c.4.0.e.0.a.a.d.6.0.4.2.ip6.arpa'.