Reverse DNS Lookup for 171.232.52.177

Searching for 177.52.232.171.in-addr.arpa. PTR record at I.ROOT-SERVERS.NET. [192.36.148.17] ...took 12 ms
Searching for 177.52.232.171.in-addr.arpa. PTR record at a.in-addr-servers.arpa. [199.180.182.53] ...took 156 ms

Searching for ns3.lacnic.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 13 ms
Searching for ns3.lacnic.net. A record at e.gtld-servers.net. [192.12.94.30] ...took 23 ms

Searching for ns2.dns.br. A record at D.ROOT-SERVERS.NET. [199.7.91.13] ...took 12 ms
Searching for ns2.dns.br. A record at e.dns.br. [200.229.248.10] ...took 5 ms

Searching for ns3.lacnic.net. A record at ns2.dns.br. [200.192.232.53] ...took 207 ms

Searching for 177.52.232.171.in-addr.arpa. PTR record at ns3.lacnic.net. [200.3.13.14] ...took 198 ms

Searching for dns1.vietel.com.vn. A record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 14 ms
Searching for dns1.vietel.com.vn. A record at e.dns-servers.vn. [203.119.60.105] ...took 263 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 336 ms

Searching for 177.52.232.171.in-addr.arpa. PTR record at dns1.vietel.com.vn. [203.113.131.1] ...took 341 ms
REFUSED
Searching for 177.52.232.171.in-addr.arpa. PTR record at dns2.vietel.com.vn. [203.113.188.2] ...took 276 ms

Domain	Type	TTL	Answer
177.52.232.171.in-addr.arpa.	PTR	3600	dynamic-adsl.viettel.vn.

Total elapsed query time: 2,187 ms