Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '45.115.61.0'
+226
ERRNo PTR record availible DNS server 'x.arin.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.61.115.45.in-addr.arpa'.