Searching for 171.250.140.121.in-addr.arpa. PTR record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for 171.250.140.121.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 155 ms
Searching for 171.250.140.121.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 155 ms
Searching for rirns.arin.net. A record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 62 ms
Searching for rirns.arin.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 5 ms
Searching for rirns.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 146 ms
Searching for 171.250.140.121.in-addr.arpa. PTR record at rirns.arin.net. [199.253.249.53]
...took 156 msSearching for rirns.arin.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 5 ms
Searching for rirns.arin.net. A record at ns2.arin.net. [199.71.0.108] ...took 146 ms
Searching for c.dns.kr. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 13 ms
Searching for c.dns.kr. A record at b.dns.kr. [210.101.60.1] ...took 283 ms
Searching for 171.250.140.121.in-addr.arpa. PTR record at c.dns.kr. [210.101.61.1]
...took 324 msSearching for c.dns.kr. A record at b.dns.kr. [210.101.60.1] ...took 283 ms
Searching for rev1.kornet.net. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 12 ms
Searching for rev1.kornet.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 11 ms
Searching for rev1.kornet.net. A record at ns2.kornet.net. [211.216.50.160] ...took 282 ms
Searching for 171.250.140.121.in-addr.arpa. PTR record at rev1.kornet.net. [211.216.50.170]
...took 283 msSearching for rev1.kornet.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 11 ms
Searching for rev1.kornet.net. A record at ns2.kornet.net. [211.216.50.160] ...took 282 ms
Nameserver rev1.kornet.net. reports: No such host 171.250.140.121.in-addr.arpa.
Total elapsed query time: 1,744 ms