Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '210.141.16.0'
+1.269
ERRNo PTR record availible DNS server 'is015.togisdc.jp' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.16.141.210.in-addr.arpa'.