Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '192.77.171.0'
+382
ERRNo PTR record availible DNS server 'auth1.dns.cogentco.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.171.77.192.in-addr.arpa'.