Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '185.143.16.0'
+411
ERRNo PTR record availible DNS server 'ns3.lacnic.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.16.143.185.in-addr.arpa'.