Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '66.117.20.0'
+166
ERRNo PTR record availible DNS server 'ns102.adobe.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.20.117.66.in-addr.arpa'.