Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '46.228.135.0'
+142
ERRNo PTR record availible DNS server 'usc2.akam.net' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.135.228.46.in-addr.arpa'.