Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '185.84.16.0'
+605
ERRNo PTR record availible DNS server 'ns1.ntt.eu' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.16.84.185.in-addr.arpa'.