CF1763333091509-tsm20251116095642

IPLIST.NET - 51.21.1.in-addr.arpa

Search for IP or hostnames:

51.21.1.in-addr.arpa checked at 2025-11-16T22:44:51.485Z 238ms 42/42/42 100% R:13 allDone:true timedOut:false

51.21.1.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

51.21.1.in-addr.arpa is a parent of 172.51.21.1.in-addr.arpa, 37.51.21.1.in-addr.arpa and 68.51.21.1.in-addr.arpa.

Two name servers ns1.vectant.ne.jp and ns2.vectant.ne.jp handle delegation for 51.21.1.in-addr.arpa.

51.21.1.in-addr.arpa uses the same name server setup as other domains, for example 1.212.122.in-addr.arpa, 234.139.163.in-addr.arpa, 210.146.210.in-addr.arpa, 104.3.36.in-addr.arpa and 91.228.222.in-addr.arpa.

51.21.1.in-addr.arpa partially shares name servers with other domains; examples include jipm.or.jp, bins.ne.jp, 00l.62.170.210.in-addr.arpa, mti-osk.co.jp and marunouchi-hc.jp.

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

Host names with one IP number: The host name ns1.vectant.ne.jp points to 163.139.230.164 and the host name 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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