Searching for 207.137.158.112.in-addr.arpa. PTR record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 25 ms
Searching for 207.137.158.112.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 169 ms
Searching for 207.137.158.112.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 169 ms
Searching for apnic.authdns.ripe.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for apnic.authdns.ripe.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 6 ms
Searching for apnic.authdns.ripe.net. A record at ns3.afrinic.net. [204.61.216.100] ...took 11 ms
Searching for 207.137.158.112.in-addr.arpa. PTR record at apnic.authdns.ripe.net. [193.0.9.9]
...took 12 msSearching for apnic.authdns.ripe.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 6 ms
Searching for apnic.authdns.ripe.net. A record at ns3.afrinic.net. [204.61.216.100] ...took 11 ms
Searching for b.dns.kr. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 13 ms
Searching for b.dns.kr. A record at g.dns.kr. [202.31.190.1] ...took 6 ms
Searching for 207.137.158.112.in-addr.arpa. PTR record at b.dns.kr. [210.101.60.1]
...took 285 msSearching for b.dns.kr. A record at g.dns.kr. [202.31.190.1] ...took 6 ms
Nameserver b.dns.kr. reports: No such host 207.137.158.112.in-addr.arpa.
Total elapsed query time: 541 ms