Searching for 18.55.22.190.in-addr.arpa. PTR record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for 18.55.22.190.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 128 ms
Searching for 18.55.22.190.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 128 ms
Nameserver d.in-addr-servers.arpa. reports: No such host 18.55.22.190.in-addr.arpa.
Total elapsed query time: 139 ms