Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '212.133.0.0'
+752
ERRNo PTR record availible DNS server 'ns1.eu.level3.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.133.212.in-addr.arpa'.