Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '2401:1d80:3028::'
+421
ERRNo PTR record availible DNS server 'ns-298.awsdns-37.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.2.0.3.0.8.d.1.1.0.4.2.ip6.arpa'.