CF1763259520126-tsm20251109205412

MXLIST.NET - 21-st.org

Search for IP or hostnames:

21-st.org checked at 2025-11-16T02:18:40.113Z 310ms 77/77/77 100% R:20 allDone:true timedOut:false

AI analysis

21-st.org is the parent of mail.21-st.org.

21-st.org points to IP number 213.133.106.22.

For instance, other host names biller-koi.de, aigner-motorsport.de, mail.21-st.org, mail.aigner-motorsport.de and mail.biller-koi.de share IP numbers with 21-st.org.

21-st.org is delegated to two name servers: ns.second-ns.de and dedins22.your-server.de.

21-st.org shares the same name server setup as other domains, for instance aigner-motorsport.de.

21-st.org shares name servers with other domains at least partially, for example venta-com.de, pz-designs.de, metal-technology.de, 228.239.213.in-addr.arpa and friend-chip.com.

these name servers are often used with the following: ns2.your-server.de, ns4.your-server.de, ns3.your-server.de, ns11.your-server.de, ns8.your-server.de, ns10.your-server.de, ns16.your-server.de, ns5.your-server.de, ns14.your-server.de and ns17.your-server.de.

Host names with two IP numbers:

The host name ns.second-ns.de points to 2001:67c:192c::add:b3 and 193.47.99.4.

Host names with one IP number:

The host name dedins22.your-server.de points to 213.133.100.102.

21-st.org is handled by a single mail server, dedi22.your-server.de.

21-st.org shares the same mail server setup as other domains, such as biller-koi.de, aigner-motorsport.de and dedi22.your-server.de.

dedi22.your-server.de resolves to two IPs: 2a01:4f8:d0a:2565::2 and 213.133.106.22.

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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