Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '185.55.191.0'
+227
ERRNo PTR record availible DNS server 'ns-479.awsdns-59.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.191.55.185.in-addr.arpa'.