CF1760283253522-tsm20251012143351

IPLIST.NET - demarc.cogentco.com

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demarc.cogentco.com checked at 2025-10-12T15:34:13.509Z 120ms 56/56/56 100% R:10

demarc.cogentco.com

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

cogentco.com

NSauth1.dns.cogentco.com
NSauth2.dns.cogentco.com
MXcogentco-com.mail.protection.outlook.com
A2001:550:1::cc01 🇺🇸 Cogent Communications, Inc.
A38.100.128.10🇩🇪 Cogent Communications, Inc.
rank #84499 globally
rank #42356 in the tld

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AI analysis

demarc.cogentco.com is the parent of magnusson-klemencic-assoc-sea.demarc.cogentco.com, scheck-mechanical.demarc.cogentco.com, wedbushmorgansecurities.demarc.cogentco.com, crooks-and-liars.demarc.cogentco.com, magnusson-klemencic-assoc-chi.demarc.cogentco.com and a few other host names.

demarc.cogentco.com is delegated to two name servers: auth1.dns.cogentco.com and auth2.dns.cogentco.com.

demarc.cogentco.com uses the same name server setup as other domains such as 94.110.38.in-addr.arpa, 140.89.38.in-addr.arpa, 47.100.38.in-addr.arpa, 10.98.38.in-addr.arpa and 52.201.38.in-addr.arpa.

demarc.cogentco.com shares name servers with other domains at least partially, for example inforoutesantecanada.ca, upsmychoicepromo.com, dra.de, 79.31.207.in-addr.arpa and sandmaenchen.de.

These name servers are commonly used alongside nsa.ups.com, nsb.ups.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, ns1.vodafone-ip.de and ns2.vodafone-ip.de.

Host names with two IP numbers:

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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TkiGPMy CF johedugfp 2025-10-12