Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '155.63.210.0'
+141
ERRNo PTR record availible DNS server 'ns-1089.awsdns-08.org' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.210.63.155.in-addr.arpa'.