Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '2607:5ac0:1::'
+207
ERRNo PTR record availible DNS server 'arin.authdns.ripe.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.1.0.0.0.0.c.a.5.7.0.6.2.ip6.arpa'.