CF1761153244749-tsm20251017082432

DNSWHOIS.INFO - 21.188.80.in-addr.arpa

Search for IP or hostnames:

21.188.80.in-addr.arpa checked at 2025-10-22T17:14:04.726Z 150ms 47/47/47 100% R:14

21.188.80.in-addr.arpa

NSdns.iol.cz
A2a00:1028:100:102::61 🇨🇿 O2-CZECH-REPUBLIC
PTRdns.iol.cz
A194.228.2.61🇨🇿 O2-CZECH-REPUBLIC
PTRdns.iol.cz
NSns2.tel.cz
A2a00:1028:1:205::2 🇨🇿 O2-CZECH-REPUBLIC
PTRns2.tel.cz
A194.228.2.1🇨🇿 O2-CZECH-REPUBLIC
PTRns2.tel.cz

188.80.in-addr.arpa

NSdns.iol.cz
NSns2.tel.cz

Up

Starts with same word

Starts similarily

AI analysis

The parent of 71.21.188.80.in-addr.arpa, 29.21.188.80.in-addr.arpa, 226.21.188.80.in-addr.arpa, 17.21.188.80.in-addr.arpa and 72.21.188.80.in-addr.arpa is 21.188.80.in-addr.arpa.

21.188.80.in-addr.arpa's delegation is to two name servers dns.iol.cz and ns2.tel.cz.

21.188.80.in-addr.arpa shares the same name server configuration as other domains, such as 25.228.194.in-addr.arpa, 241.251.80.in-addr.arpa, 191.160.85.in-addr.arpa, 3.177.90.in-addr.arpa and rcc.o2.cz.

21.188.80.in-addr.arpa shares name servers with other domains at least partially, for example idnes.tv.

Host names with two IP numbers: dns.iol.cz points to 2a00:1028:100:102::61 and 194.228.2.61; ns2.tel.cz points to 2a00:1028:1:205::2 and 194.228.2.1

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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rRbvkHM CF johedugfp 2025-10-22