Searching for 205.170.244.171.in-addr.arpa. PTR record at E.ROOT-SERVERS.NET. [192.203.230.10]
...took 34 ms
Searching for 205.170.244.171.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 166 ms
Searching for 205.170.244.171.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 166 ms
Searching for apnic.authdns.ripe.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for apnic.authdns.ripe.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 13 ms
Searching for apnic.authdns.ripe.net. A record at rirns.arin.net. [199.253.249.53] ...took 92 ms
Searching for 205.170.244.171.in-addr.arpa. PTR record at apnic.authdns.ripe.net. [193.0.9.9]
...took 11 msSearching for apnic.authdns.ripe.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 13 ms
Searching for apnic.authdns.ripe.net. A record at rirns.arin.net. [199.253.249.53] ...took 92 ms
Searching for dns2.vietel.com.vn. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 31 ms
Searching for dns2.vietel.com.vn. A record at c.dns-servers.vn. [203.119.38.105] ...took 160 ms
Searching for dns2.vietel.com.vn. A record at dns2.vietel.com.vn. [203.113.131.2] No route to host
Searching for dns2.vietel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 176 ms
Searching for 205.170.244.171.in-addr.arpa. PTR record at dns2.vietel.com.vn. [203.113.188.2]
...took 159 msSearching for dns2.vietel.com.vn. A record at c.dns-servers.vn. [203.119.38.105] ...took 160 ms
Searching for dns2.vietel.com.vn. A record at dns2.vietel.com.vn. [203.113.131.2] No route to host
Searching for dns2.vietel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 176 ms
Nameserver dns2.vietel.com.vn. reports: No such host 205.170.244.171.in-addr.arpa.
Total elapsed query time: 1,015 ms