Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '168.87.183.0'
+464
ERRNo PTR record availible DNS server 'euns2.ssn.entsvcs.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.183.87.168.in-addr.arpa'.