Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '51.149.250.0'
+191
ERRNo PTR record availible DNS server 'ns4.apnic.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.250.149.51.in-addr.arpa'.