Searching for 10.4.121.31.in-addr.arpa. PTR record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for 10.4.121.31.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 14 ms
Searching for 10.4.121.31.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 14 ms
Searching for ns4.apnic.net. A record at B.ROOT-SERVERS.NET. [192.228.79.201]
...took 75 ms
Searching for ns4.apnic.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 6 ms
Searching for ns4.apnic.net. A record at apnic.authdns.ripe.net. [193.0.9.9] ...took 12 ms
Searching for 10.4.121.31.in-addr.arpa. PTR record at ns4.apnic.net. [202.12.31.53]
...took 16 msSearching for ns4.apnic.net. A record at f.gtld-servers.net. [192.35.51.30] ...took 6 ms
Searching for ns4.apnic.net. A record at apnic.authdns.ripe.net. [193.0.9.9] ...took 12 ms
Searching for ns2.bt.net. A record at I.ROOT-SERVERS.NET. [192.36.148.17]
...took 12 ms
Searching for ns2.bt.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for ns2.bt.net. A record at ns2.bt.net. [217.32.105.90] ...took 29 ms
Searching for 10.4.121.31.in-addr.arpa. PTR record at ns2.bt.net. [217.32.105.90]
...took 28 msSearching for ns2.bt.net. A record at h.gtld-servers.net. [192.54.112.30] ...took 6 ms
Searching for ns2.bt.net. A record at ns2.bt.net. [217.32.105.90] ...took 29 ms
Nameserver ns2.bt.net. reports: No such host 10.4.121.31.in-addr.arpa.
Total elapsed query time: 210 ms