Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '2a00:de61:300::'
+858
ERRNo PTR record availible DNS server 'ns2.n4.transversal.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.1.6.e.d.0.0.a.2.ip6.arpa'.