Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '170.176.220.0'
+101
ERRNo PTR record availible DNS server 'u.arin.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.220.176.170.in-addr.arpa'.