CF1763050233593-tsm20251109205412

WWW.RTSAK.COM - 21.21.123.in-addr.arpa

Search for IP or hostnames:

21.21.123.in-addr.arpa checked at 2025-11-13T16:10:33.580Z 539ms 41/41/41 100% R:15 allDone:true timedOut:false

21.21.123.in-addr.arpa

NShcm-server1.vnn.vn
A2001:ee0:3281:8000::8 🇻🇳 VNPT
PTRvnpt.vn
A203.162.4.1🇻🇳 VNPT
PTRhcm-server1.vnn.vn
NSvdc-hn01.vnn.vn
A2001:ee0:3281::8 🇻🇳 VNPT
PTRvnpt.vn
A203.162.0.11🇻🇳 VNPT
PTRvdc-hn01.vnn.vn

21.123.in-addr.arpa

NShcm-server1.vnn.vn
NSvdc-hn01.vnn.vn

Starts with same word

Starts similarily

AI analysis

21.21.123.in-addr.arpa has two name servers: hcm-server1.vnn.vn and vdc-hn01.vnn.vn.

21.21.123.in-addr.arpa shares the same name server setup as other domains, for example 156.160.113.in-addr.arpa, 133.30.123.in-addr.arpa, 237.14.in-addr.arpa, 74.255.222.in-addr.arpa and suckhoevang.vn.

Host names with two IP numbers:

hcm-server1.vnn.vn points to: 2001:ee0:3281:8000::8 and 203.162.4.1; vdc-hn01.vnn.vn points to: 2001:ee0:3281::8 and 203.162.0.11.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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