Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '146.88.243.0'
+214
ERRNo PTR record availible DNS server 'ns-1873.awsdns-42.co.uk' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.243.88.146.in-addr.arpa'.