Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '45.61.244.0'
+366
ERRNo PTR record availible DNS server 'ns1.cloudddos.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.244.61.45.in-addr.arpa'.