Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '185.16.231.0'
+210
ERRNo PTR record availible DNS server 'ns1-pl.ocplanet.cloud' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.231.16.185.in-addr.arpa'.