Reverse DNS Lookup for 113.22.98.20

Searching for 20.98.22.113.in-addr.arpa. PTR record at I.ROOT-SERVERS.NET. [192.36.148.17] ...took 11 ms
Searching for 20.98.22.113.in-addr.arpa. PTR record at b.in-addr-servers.arpa. [199.253.183.183] ...took 14 ms

Searching for apnic.authdns.ripe.net. A record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 13 ms
Searching for apnic.authdns.ripe.net. A record at a.gtld-servers.net. [192.5.6.30] ...took 20 ms
Searching for apnic.authdns.ripe.net. A record at ns3.afrinic.net. [204.61.216.100] ...took 12 ms

Searching for 20.98.22.113.in-addr.arpa. PTR record at apnic.authdns.ripe.net. [193.0.9.9] ...took 11 ms

Searching for dns1.fpt.vn. A record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 14 ms
Searching for dns1.fpt.vn. A record at d.dns-servers.vn. [203.119.44.105] ...took 270 ms
Searching for dns1.fpt.vn. A record at dns-a.fpt.vn. [210.245.86.239] ...took 216 ms

Searching for 20.98.22.113.in-addr.arpa. PTR record at dns1.fpt.vn. [210.245.0.131]

Query timed out (interrupted after 2,001 milliseconds)

Retrying...

Searching for dns2.fpt.vn. A record at M.ROOT-SERVERS.NET. [202.12.27.33] ...took 14 ms
Searching for dns2.fpt.vn. A record at e.dns-servers.vn. [203.119.60.105] ...took 247 ms
Searching for dns2.fpt.vn. A record at dns-b.fpt.vn. [118.69.166.10] ...took 334 ms

Searching for 20.98.22.113.in-addr.arpa. PTR record at dns2.fpt.vn. [210.245.0.10] ...took 323 ms

Nameserver dns2.fpt.vn. reports: No such host 20.98.22.113.in-addr.arpa.

Total elapsed query time: 3,500 ms