Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '209.58.0.0'
+211
ERRNo PTR record availible DNS server 'castor.teleglobe.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.58.209.in-addr.arpa'.