Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '88.212.156.0'
+261
ERRNo PTR record availible DNS server 'ns-21.awsdns-02.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.156.212.88.in-addr.arpa'.