CF1763439420326-tsm20251116095642

WWW.RTSAK.COM - 221.53.251.77.in-addr.arpa

Search for IP or hostnames:

221.53.251.77.in-addr.arpa checked at 2025-11-18T04:17:00.312Z 250ms 49/49/49 100% R:12 allDone:true timedOut:false

221.53.251.77.in-addr.arpa

NSrns1.upc.biz
A2001:730:3e12::134 🇳🇱 LibertyGlobal
A195.34.133.134🇦🇹 LibertyGlobal
PTRrns1.upc.biz
NSrns2.upc.biz
A2001:730:3e12:1000::134 🇳🇱 LibertyGlobal
A213.47.222.134🇳🇱 LibertyGlobal
PTRrns2.upc.biz
PTR77-251-53-221.cable.dynamic.v4.ziggo.nl
A77.251.53.221🇳🇱 TNF-AS
PTR77-251-53-221.cable.dynamic.v4.ziggo.nl

53.251.77.in-addr.arpa

NSrns1.upc.biz
NSrns2.upc.biz

Starts with same word

Starts similarily

AI analysis

221.53.251.77.in-addr.arpa is delegated to two name servers rns1.upc.biz and rns2.upc.biz.

221.53.251.77.in-addr.arpa shares the same name server setup as other domains, for instance 48.250.77.in-addr.arpa, 190.123.217.in-addr.arpa, 25.24.82.83.in-addr.arpa, 59.175.83.83.in-addr.arpa and 69.223.10.31.in-addr.arpa.

Host names with two IP numbers:

The host name rns1.upc.biz points to 2001:730:3e12::134 and 195.34.133.134; the host name rns2.upc.biz points to 2001:730:3e12:1000::134 and 213.47.222.134.

77-251-53-221.cable.dynamic.v4.ziggo.nl resolves to IP 77.251.53.221.

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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