Searching for 247.21.152.121.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for 247.21.152.121.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for 247.21.152.121.in-addr.arpa. PTR record at f.in-addr-servers.arpa. [193.0.9.1] ...took 12 ms
Searching for ns3.lacnic.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for ns3.lacnic.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 12 ms
Searching for ns3.lacnic.net. A record at rirns.arin.net. [199.253.249.53] ...took 91 ms
Searching for 247.21.152.121.in-addr.arpa. PTR record at ns3.lacnic.net. [200.3.13.14]
...took 197 msSearching for ns3.lacnic.net. A record at j.gtld-servers.net. [192.48.79.30] ...took 12 ms
Searching for ns3.lacnic.net. A record at rirns.arin.net. [199.253.249.53] ...took 91 ms
Searching for b.dns.kr. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for b.dns.kr. A record at b.dns.kr. [210.101.60.1] ...took 286 ms
Searching for 247.21.152.121.in-addr.arpa. PTR record at b.dns.kr. [210.101.60.1]
...took 285 msSearching for b.dns.kr. A record at b.dns.kr. [210.101.60.1] ...took 286 ms
Searching for rev1.kornet.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for rev1.kornet.net. A record at g.gtld-servers.net. [192.42.93.30] ...took 7 ms
Searching for rev1.kornet.net. A record at ns.kornet.net. [211.216.50.150] ...took 282 ms
Searching for 247.21.152.121.in-addr.arpa. PTR record at rev1.kornet.net. [211.216.50.170]
...took 285 msSearching for rev1.kornet.net. A record at g.gtld-servers.net. [192.42.93.30] ...took 7 ms
Searching for rev1.kornet.net. A record at ns.kornet.net. [211.216.50.150] ...took 282 ms
Nameserver rev1.kornet.net. reports: No such host 247.21.152.121.in-addr.arpa.
Total elapsed query time: 1,515 ms