Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '168.100.107.0'
+235
ERRNo PTR record availible DNS server 'ns-1087.awsdns-07.org' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.107.100.168.in-addr.arpa'.