Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '2607:fb90:c150::'
+064
ERRNo PTR record availible DNS server 'y.arin.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.5.1.c.0.9.b.f.7.0.6.2.ip6.arpa'.