Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '154.214.223.0'
+867
ERRNo PTR record availible DNS server 'dmk.mu.freezedns.com' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.223.214.154.in-addr.arpa'.