Searching for 80.120.75.115.in-addr.arpa. PTR record at D.ROOT-SERVERS.NET. [199.7.91.13]
...took 12 ms
Searching for 80.120.75.115.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 168 ms
Searching for 80.120.75.115.in-addr.arpa. PTR record at c.in-addr-servers.arpa. [196.216.169.10] ...took 168 ms
Searching for ns1.apnic.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 13 ms
Searching for ns1.apnic.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 12 ms
Searching for ns1.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 5 ms
Searching for 80.120.75.115.in-addr.arpa. PTR record at ns1.apnic.net. [203.119.42.53]
...took 188 msSearching for ns1.apnic.net. A record at m.gtld-servers.net. [192.55.83.30] ...took 12 ms
Searching for ns1.apnic.net. A record at ns2.apnic.net. [203.119.95.53] ...took 5 ms
Searching for dns1.viettel.com.vn. A record at M.ROOT-SERVERS.NET. [202.12.27.33]
...took 14 ms
Searching for dns1.viettel.com.vn. A record at f.dns-servers.vn. [203.119.68.105] ...took 318 ms
Searching for dns1.viettel.com.vn. A record at dns2.vietel.com.vn. [203.113.131.2] No route to host
Searching for dns1.viettel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 425 ms
Searching for 80.120.75.115.in-addr.arpa. PTR record at dns1.viettel.com.vn. [203.113.131.1]
...took 363 msSearching for dns1.viettel.com.vn. A record at f.dns-servers.vn. [203.119.68.105] ...took 318 ms
Searching for dns1.viettel.com.vn. A record at dns2.vietel.com.vn. [203.113.131.2] No route to host
Searching for dns1.viettel.com.vn. A record at dns1.vietel.com.vn. [203.113.131.1] ...took 425 ms
Nameserver dns1.viettel.com.vn. reports: No such host 80.120.75.115.in-addr.arpa.
Total elapsed query time: 1,881 ms