CF1763273274475-tsm20251109205412

WWW.RTSAK.COM - 173.21.1.in-addr.arpa

Search for IP or hostnames:

173.21.1.in-addr.arpa checked at 2025-11-16T06:07:54.454Z 202ms 42/42/42 100% R:14 allDone:true timedOut:false

173.21.1.in-addr.arpa

NSns1.vectant.ne.jp
A163.139.230.164🇯🇵 ARTERIA Networks Corporation (Vectant)
PTRns1.vectant.ne.jp
NSns2.vectant.ne.jp
A163.139.230.165🇯🇵 ARTERIA Networks Corporation (Vectant)
PTRns2.vectant.ne.jp

21.1.in-addr.arpa

Up

Starts with same word

Starts similarily

AI analysis

173.21.1.in-addr.arpa is a parent of 37.173.21.1.in-addr.arpa, 46.173.21.1.in-addr.arpa, 247.173.21.1.in-addr.arpa, 234.173.21.1.in-addr.arpa, 68.173.21.1.in-addr.arpa and a few other host names.

173.21.1.in-addr.arpa's delegation uses two name servers, ns1.vectant.ne.jp and ns2.vectant.ne.jp.

173.21.1.in-addr.arpa shares the same name server setup as other domains, for example 36.21.1.in-addr.arpa, 88.228.222.in-addr.arpa, 124.21.1.in-addr.arpa, 96.215.202.in-addr.arpa and 160.177.183.in-addr.arpa.

173.21.1.in-addr.arpa at least partially shares name servers with other domains, including 00c.177.131.210.in-addr.arpa, 79.133.in-addr.arpa, rick.co.jp, hollyhock-tube.com and marunouchi-sogo.com.

These name servers are commonly used with ax02.itplugin.net and ax03.itplugin.net.

Host names with a single IP:

ns1.vectant.ne.jp points to 163.139.230.164.

ns2.vectant.ne.jp points to 163.139.230.165.

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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