CF1759428847728-tsm20251002145945

WWW.RTSAK.COM - 51.4.138.in-addr.arpa

Search for IP or hostnames:

51.4.138.in-addr.arpa checked at 2025-10-02T18:14:07.715Z 644ms 49/49/49 100% R:18

51.4.138.in-addr.arpa

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
NSdns.etsit.upm.es
A138.100.17.4🇪🇸 RedIRIS/Red.es
PTRdns.etsit.upm.es

4.138.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

51.4.138.in-addr.arpa is the parent of 123.51.4.138.in-addr.arpa and 82.51.4.138.in-addr.arpa.

51.4.138.in-addr.arpa delegates to three name servers: galileo.ccupm.upm.es, dir.etsit.upm.es and dns.etsit.upm.es.

51.4.138.in-addr.arpa shares some name servers with other domains, for example listas.upm.es, mecanica.upm.es, 26.4.138.in-addr.arpa, biblioteca.upm.es and 5.4.138.in-addr.arpa.

these name servers are often used with einstein.ccupm.upm.es, dns2.dit.upm.es, dns.dit.upm.es, isp1.etsit.upm.es, chita.fi.upm.es, ns.fi.upm.es, tarzan.fi.upm.es, zape.fi.upm.es, glo.etsit.upm.es and dns2.etsit.upm.es.

Host names with two IP numbers: 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 and dns.etsit.upm.es points to 138.100.17.4.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
dbq

MTnJrrq CF johedugfp 2025-10-02