Searching for 205.170.244.171.in-addr.arpa. PTR record at K.ROOT-SERVERS.NET. [193.0.14.129]
...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 ns1.apnic.net. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 34 ms
Searching for ns1.apnic.net. A record at g.gtld-servers.net. [192.42.93.30] ...took 7 ms
Searching for ns1.apnic.net. A record at ns4.apnic.net. [202.12.31.53] ...took 16 ms
Searching for 205.170.244.171.in-addr.arpa. PTR record at ns1.apnic.net. [203.119.42.53]
...took 165 msSearching for ns1.apnic.net. A record at g.gtld-servers.net. [192.42.93.30] ...took 7 ms
Searching for ns1.apnic.net. A record at ns4.apnic.net. [202.12.31.53] ...took 16 ms
Searching for dns2.vietel.com.vn. A record at K.ROOT-SERVERS.NET. [193.0.14.129]
...took 34 ms
Searching for dns2.vietel.com.vn. A record at c.dns-servers.vn. [203.119.38.105] ...took 161 ms
Searching for dns2.vietel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 178 ms
Searching for 205.170.244.171.in-addr.arpa. PTR record at dns2.vietel.com.vn. [203.113.188.2]
...took 158 msSearching for dns2.vietel.com.vn. A record at c.dns-servers.vn. [203.119.38.105] ...took 161 ms
Searching for dns2.vietel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 178 ms
Nameserver dns2.vietel.com.vn. reports: No such host 205.170.244.171.in-addr.arpa.
Total elapsed query time: 953 ms