Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '136.161.0.0'
+376
ERRNo PTR record availible DNS server 'ns.psi.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.161.136.in-addr.arpa'.