Searching for 252.87.173.121.in-addr.arpa. PTR record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 11 ms
Searching for 252.87.173.121.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 248 ms
Searching for 252.87.173.121.in-addr.arpa. PTR record at e.in-addr-servers.arpa. [203.119.86.101] ...took 248 ms
Searching for rirns.arin.net. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 12 ms
Searching for rirns.arin.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 12 ms
Searching for rirns.arin.net. A record at u.arin.net. [204.61.216.50] ...took 11 ms
Searching for 252.87.173.121.in-addr.arpa. PTR record at rirns.arin.net. [199.253.249.53]
...took 153 msSearching for rirns.arin.net. A record at b.gtld-servers.net. [192.33.14.30] ...took 12 ms
Searching for rirns.arin.net. A record at u.arin.net. [204.61.216.50] ...took 11 ms
Searching for d.dns.kr. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 13 ms
Searching for d.dns.kr. A record at f.dns.kr. [210.101.62.1] ...took 355 ms
Searching for 252.87.173.121.in-addr.arpa. PTR record at d.dns.kr. [203.83.159.1]
...took 284 msSearching for d.dns.kr. A record at f.dns.kr. [210.101.62.1] ...took 355 ms
Searching for rev2.kornet.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for rev2.kornet.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for rev2.kornet.net. A record at ns.kornet.net. [211.216.50.150] ...took 278 ms
Searching for 252.87.173.121.in-addr.arpa. PTR record at rev2.kornet.net. [211.216.50.180]
...took 280 msSearching for rev2.kornet.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for rev2.kornet.net. A record at ns.kornet.net. [211.216.50.150] ...took 278 ms
Nameserver rev2.kornet.net. reports: No such host 252.87.173.121.in-addr.arpa.
Total elapsed query time: 1,677 ms