Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '206.225.217.0'
+355
ERRNo PTR record availible DNS server 'dns3.p01.nsone.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.217.225.206.in-addr.arpa'.