Unable to find any PTR-records for the specified domain/ip :(
Log
+000
Resolving PTR record of '152.129.249.0'
+223
ERRNo PTR record availible DNS server 'ns3x.va.gov' raised an NotExistentDomain error, while beeing queried for PTR-records on domain '0.249.129.152.in-addr.arpa'.