Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '185.57.216.0'
+304
ERRNo PTR record availible DNS server 'ns-152.awsdns-19.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.216.57.185.in-addr.arpa'.