CF1762734640396-tsm20251109205412

DNSWHOIS.INFO - 19.5.204.in-addr.arpa

Search for IP or hostnames:

19.5.204.in-addr.arpa checked at 2025-11-10T00:30:40.370Z 421ms 47/47/47 100% R:15 allDone:true timedOut:false

19.5.204.in-addr.arpa

NSauth1.dns.cogentco.com
A2001:550:1:a::d 🇺🇸 Cogent Communications, Inc.
PTRauth1.dns.cogentco.com
A66.28.0.14🇺🇸 Cogent Communications, Inc.
PTRauth1.dns.cogentco.com
NSauth2.dns.cogentco.com
A2001:550:1:b::d 🇺🇸 Cogent Communications, Inc.
PTRauth2.dns.cogentco.com
A66.28.0.30🇺🇸 Cogent Communications, Inc.
PTRauth2.dns.cogentco.com

5.204.in-addr.arpa

NSauth1.dns.cogentco.com
NSauth2.dns.cogentco.com

Starts with same word

Starts similarily

AI analysis

Two name servers auth1.dns.cogentco.com and auth2.dns.cogentco.com are delegated to 19.5.204.in-addr.arpa.

19.5.204.in-addr.arpa uses the same name server configuration as other domains, such as clsgroup.info, 27.61.209.in-addr.arpa, rsrna.com, 152.160.38.in-addr.arpa and 48.101.38.in-addr.arpa.

19.5.204.in-addr.arpa at least partially shares name servers with other domains such as 20.132.66.in-addr.arpa, bandcampberlin.de, upsonline.com.au, 117.231.67.in-addr.arpa and ups.hu.

These name servers are often used together with nsa.ups.com, nsb.ups.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, ns1.vodafone-ip.de, ns2.vodafone-ip.de, ns1.fnsi.net, ns2.fnsi.net and ns3.fnsi.net.

Host names with two IPs:

auth1.dns.cogentco.com points to 2001:550:1:a::d and 66.28.0.14.

auth2.dns.cogentco.com points to 2001:550:1:b::d and 66.28.0.30.

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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