CF1763259524168-tsm20251109205412

IPLIST.NET - c-21.de

Search for IP or hostnames:

c-21.de checked at 2025-11-16T02:18:44.131Z 205ms 68/68/68 100% R:10 allDone:true timedOut:false

c-21.de

NSns1.world4you.at
A2607:f1c0:fe:53:185:132:32:253 🇺🇸 IONOS-ANYCAST
PTRns2.world4you.at
A185.132.32.253🇩🇪 IONOS-ANYCAST
PTRns2.world4you.at
NSns2.world4you.at
A2001:8d8:fe:53:217:160:82:253 🇩🇪 IONOS-AS
PTRns1.world4you.at
A217.160.82.253🇩🇪 IONOS-AS
PTRns1.world4you.at
MXmail.c-21.de
A81.19.149.91🇦🇹 WORLD4YOU
PTRmail36.world4you.com
A81.19.145.76🇦🇹 WORLD4YOU
PTRwww56.world4you.com

de

NSa.nic.de
NSf.nic.de
NSz.nic.de
NSl.de.net
NSn.de.net
NSs.de.net

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Starts with same word

Starts similarily

AI analysis

c-21.de is the parent of mail.c-21.de.

c-21.de resolves to one IP number: 81.19.145.76.

other host names including feuerwehr-semmering.at, ringsherum.at, www.stiftherzogenburg.at, kordes.biz and haus-radona.at share IP numbers with c-21.de.

c-21.de is delegated to two name servers ns1.world4you.at and ns2.world4you.at.

c-21.de shares the same name server setup as other domains, for instance kandlbinder.at, sys4you.at, bilderwald.at, guterplan.at and edv2.at.

Host names with two IP numbers:

The host name ns1.world4you.at points to 2607:f1c0:fe:53:185:132:32:253 and 185.132.32.253; the host name ns2.world4you.at points to 2001:8d8:fe:53:217:160:82:253 and 217.160.82.253.

c-21.de is handled by a single mail server, mail.c-21.de.

mail.c-21.de resolves to IP 81.19.149.91.

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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