Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '66.6.52.0'
+1.189
ERRNo PTR record availible DNS server 'ns1.nexdapp.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.52.6.66.in-addr.arpa'.