Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '140.99.66.0'
+207
ERRNo PTR record availible DNS server 'ns4-08.azure-dns.info' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.66.99.140.in-addr.arpa'.