Searching for 205.170.244.171.in-addr.arpa. PTR record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for 205.170.244.171.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 98 ms
Searching for 205.170.244.171.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 98 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 b.gtld-servers.net. [192.33.14.30] ...took 32 ms
Searching for apnic.authdns.ripe.net. A record at ns3.afrinic.net. [204.61.216.100] ...took 6 ms
Searching for 205.170.244.171.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 b.gtld-servers.net. [192.33.14.30] ...took 32 ms
Searching for apnic.authdns.ripe.net. A record at ns3.afrinic.net. [204.61.216.100] ...took 6 ms
Searching for dns1.vietel.com.vn. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 15 ms
Searching for dns1.vietel.com.vn. A record at c.dns-servers.vn. [203.119.38.105] ...took 175 ms
Searching for dns1.vietel.com.vn. A record at dns2.vietel.com.vn. [203.113.131.2] No route to host
Searching for dns1.vietel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 175 ms
Searching for 205.170.244.171.in-addr.arpa. PTR record at dns1.vietel.com.vn. [203.113.131.1]
...took 175 msSearching for dns1.vietel.com.vn. A record at c.dns-servers.vn. [203.119.38.105] ...took 175 ms
Searching for dns1.vietel.com.vn. A record at dns2.vietel.com.vn. [203.113.131.2] No route to host
Searching for dns1.vietel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 175 ms
Nameserver dns1.vietel.com.vn. reports: No such host 205.170.244.171.in-addr.arpa.
Total elapsed query time: 875 ms