Searching for 138.250.215.200.in-addr.arpa. PTR record at C.ROOT-SERVERS.NET. [192.33.4.12]
...took 9 ms
Searching for 138.250.215.200.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 127 ms
Searching for 138.250.215.200.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 127 ms
Nameserver d.in-addr-servers.arpa. reports: No such host 138.250.215.200.in-addr.arpa.
Total elapsed query time: 136 ms