Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '185.99.236.0'
+249
ERRNo PTR record availible DNS server 'ns-504.awsdns-63.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.236.99.185.in-addr.arpa'.