Searching for 201.171.160.121.in-addr.arpa. PTR record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for 201.171.160.121.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 170 ms
Searching for 201.171.160.121.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 170 ms
Searching for ns2.apnic.net. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 11 ms
Searching for ns2.apnic.net. A record at l.gtld-servers.net. [192.41.162.30] ...took 11 ms
Searching for ns2.apnic.net. A record at ns4.apnic.net. [202.12.31.53] ...took 16 ms
Searching for 201.171.160.121.in-addr.arpa. PTR record at ns2.apnic.net. [203.119.95.53]
...took 5 msSearching for ns2.apnic.net. A record at l.gtld-servers.net. [192.41.162.30] ...took 11 ms
Searching for ns2.apnic.net. A record at ns4.apnic.net. [202.12.31.53] ...took 16 ms
Searching for f.dns.kr. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 12 ms
Searching for f.dns.kr. A record at f.dns.kr. [210.101.62.1] ...took 300 ms
Searching for 201.171.160.121.in-addr.arpa. PTR record at f.dns.kr. [210.101.62.1]
...took 285 msSearching for f.dns.kr. A record at f.dns.kr. [210.101.62.1] ...took 300 ms
Searching for rev2.kornet.net. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 11 ms
Searching for rev2.kornet.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 12 ms
Searching for rev2.kornet.net. A record at ns.kornet.net. [211.216.50.150] ...took 284 ms
Searching for 201.171.160.121.in-addr.arpa. PTR record at rev2.kornet.net. [211.216.50.180]
...took 285 msSearching for rev2.kornet.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 12 ms
Searching for rev2.kornet.net. A record at ns.kornet.net. [211.216.50.150] ...took 284 ms
Nameserver rev2.kornet.net. reports: No such host 201.171.160.121.in-addr.arpa.
Total elapsed query time: 1,413 ms