Searching for 120.53.143.136.in-addr.arpa. PTR record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for 120.53.143.136.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 167 ms
Searching for 120.53.143.136.in-addr.arpa. PTR record at d.in-addr-servers.arpa. [200.10.60.53] ...took 167 ms
Searching for x.arin.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for x.arin.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for x.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 146 ms
Searching for 120.53.143.136.in-addr.arpa. PTR record at x.arin.net. [199.180.180.63]
...took 155 msSearching for x.arin.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for x.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 146 ms
Nameserver x.arin.net. reports: No such host 120.53.143.136.in-addr.arpa.
Total elapsed query time: 499 ms