Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '207.156.128.0'
+334
ERRNo PTR record availible DNS server 'auth4.ns.gin.ntt.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.128.156.207.in-addr.arpa'.