CF1759470307471-tsm20251002182459

WWW.RTSAK.COM - 20.100.138.in-addr.arpa

Search for IP or hostnames:

20.100.138.in-addr.arpa checked at 2025-10-03T05:45:07.458Z 748ms 59/59/59 100% R:16

20.100.138.in-addr.arpa

NSeinstein.ccupm.upm.es
A2001:720:41c:40:12:100:4:8 🇪🇸 RedIRIS/Red.es
PTReinstein.ccupm.upm.es
A138.100.4.8🇪🇸 RedIRIS/Red.es
PTReinstein.ccupm.upm.es
NSgalileo.ccupm.upm.es
A2001:720:41c:40:12:100:4:4 🇪🇸 RedIRIS/Red.es
PTRgalileo.ccupm.upm.es
A138.100.4.4🇪🇸 RedIRIS/Red.es
PTRgalileo.ccupm.upm.es
NSdir.etsit.upm.es
A138.100.17.10🇪🇸 RedIRIS/Red.es
PTRdir.etsit.upm.es
PTRselfie.etsit.upm.es
NSnetsrv.mat.upm.es
A138.100.20.126🇪🇸 RedIRIS/Red.es
PTRnetsrv.mat.upm.es

100.138.in-addr.arpa

NSchico.rediris.es
NSsun.rediris.es
NSeinstein.ccupm.upm.es
NSgalileo.ccupm.upm.es

Up

Starts with same word

Starts similarily

AI analysis

20.100.138.in-addr.arpa is a parent of 9.20.100.138.in-addr.arpa and 126.20.100.138.in-addr.arpa.

20.100.138.in-addr.arpa delegates to four name servers: einstein.ccupm.upm.es, galileo.ccupm.upm.es, dir.etsit.upm.es and netsrv.mat.upm.es.

20.100.138.in-addr.arpa at least partially shares name servers with other domains, including 90.100.138.in-addr.arpa, etsist.upm.es, grise.upm.es, ssr.upm.es and dma.fi.upm.es.

These name servers are commonly used with dns.etsit.upm.es, dns2.dit.upm.es, dns.dit.upm.es, chita.fi.upm.es, ns.fi.upm.es, tarzan.fi.upm.es, zape.fi.upm.es, chico.rediris.es, sun.rediris.es and isp1.etsit.upm.es.

Host names with two IP numbers:

einstein.ccupm.upm.es points to 2001:720:41c:40:12:100:4:8 and 138.100.4.8

galileo.ccupm.upm.es points to 2001:720:41c:40:12:100:4:4 and 138.100.4.4

Host names with one IP number:

dir.etsit.upm.es points to 138.100.17.10

netsrv.mat.upm.es points to 138.100.20.126

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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JbVaXxb CF johedugfp 2025-10-03