CF1763767040295-tsm20251116095642

IPLIST.NET - 21er.org

Search for IP or hostnames:

21er.org checked at 2025-11-21T23:17:20.236Z 922ms 66/66/66 100% R:13 allDone:true timedOut:false

21er.org

MXmail.21er.org
A2a03:4000:36:4d1::1 🇩🇪 netcup-AS
PTRmail.21er.org
A213.109.163.247🇩🇪 netcup-AS
PTRmail.21er.org
NSns1.21er.org
A213.109.163.247🇩🇪 netcup-AS
PTRmail.21er.org
NSns3.21er.org
A202.61.246.161🇦🇹 netcup-AS
PTRv2202102103936143820.happysrv.de
A2a03:4000:36:4d1::1 🇩🇪 netcup-AS
PTRmail.21er.org
A213.109.163.247🇩🇪 netcup-AS
PTRmail.21er.org

org

NSa0.org.afilias-nst.info
NSa2.org.afilias-nst.info
NSc0.org.afilias-nst.info
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSd0.org.afilias-nst.org

Up

Starts with same word

Starts similarily

AI analysis

21er.org is parent of ns3.21er.org, ns1.21er.org, ns2.21er.org and mail.21er.org.

21er.org points to two IP numbers: 2a03:4000:36:4d1::1 and 213.109.163.247.

Other host names such as ns1.21er.org, ns2.21er.org and mail.21er.org share IP numbers with 21er.org.

21er.org is delegated to two name servers: ns1.21er.org and ns3.21er.org.

Hostnames with a single IP

ns1.21er.org resolves to: 213.109.163.247.

ns3.21er.org resolves to: 202.61.246.161.

The mail server for 21er.org is mail.21er.org.

Hostname mail.21er.org resolves to two IPs: 2a03:4000:36:4d1::1 and 213.109.163.247.

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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