Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '198.160.151.0'
+236
ERRNo PTR record availible DNS server 'ns-538.awsdns-03.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.151.160.198.in-addr.arpa'.