Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '207.180.43.0'
+246
ERRNo PTR record availible DNS server 'spock.ici.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.43.180.207.in-addr.arpa'.