CF1761740712382-tsm20251027103946

DNSWHOIS.INFO - 21.131.140.in-addr.arpa

Search for IP or hostnames:

21.131.140.in-addr.arpa checked at 2025-10-29T12:25:12.364Z 999ms 29/29/29 100% R:11

21.131.140.in-addr.arpa

NSdns

131.140.in-addr.arpa

NSdns.ntu.edu.tw
NSntu3.ntu.edu.tw

Up

Starts with same word

Starts similarily

AI analysis

21.131.140.in-addr.arpa is a parent of 20.21.131.140.in-addr.arpa, 2.21.131.140.in-addr.arpa, 41.21.131.140.in-addr.arpa, 44.21.131.140.in-addr.arpa, 3.21.131.140.in-addr.arpa and a few other host names.

21.131.140.in-addr.arpa is delegated to a single name server, dns.

21.131.140.in-addr.arpa shares the same name server setup as taxi.sk, takpho.go.th, pornanddonuts.com, visgeneer.com.tw and unimetro.edu.co.

21.131.140.in-addr.arpa at least partially shares name servers with other domains, for instance heritage.edu, wis.edu.hk, algojapan.co.jp, fineit.net and coteor.net.bo.

These name servers are commonly used with dns2, dns1, apple.wa-k20.net, ruler.wa-k20.net, dns.algojapan.co.jp, 13.84.154.132, 200.23.113.4, dns.itswitch.us and dns.mdhs.tc.edu.tw.

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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