Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '192.47.161.0'
+483
ERRNo PTR record availible DNS server 'vesta.ntt-itn.co.jp' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.161.47.192.in-addr.arpa'.