Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '70.251.0.0'
+195
ERRNo PTR record availible DNS server 'ns1.swbell.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.251.70.in-addr.arpa'.