Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '206.55.0.0'
+481
ERRNo PTR record availible DNS server 'auth3.ns.gin.ntt.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.0.55.206.in-addr.arpa'.