Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '192.89.218.0'
+1.365
ERRNo PTR record availible DNS server 'ns2-usa.global.sonera.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.218.89.192.in-addr.arpa'.