Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '203.83.220.0'
+197
ERRNo PTR record availible DNS server 'pdns2.ultradns.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.220.83.203.in-addr.arpa'.