MXLIST.NET - demarc.cogentco.com

Search for IP or hostnames:

demarc.cogentco.com checked at 2025-11-09T06:21:32.379Z 94ms 56/56/56 100% R:9

`demarc.cogentco.com`

NS	`auth1.dns.cogentco.com`
		A	2001:550:1:a::d ^{🇺🇸 COGENT}
			PTR	`auth1.dns.cogentco.com`
		A	66.28.0.14^{🇺🇸 COGENT}
			PTR	`auth1.dns.cogentco.com`
NS	`auth2.dns.cogentco.com`
		A	2001:550:1:b::d ^{🇺🇸 COGENT}
			PTR	`auth2.dns.cogentco.com`
		A	66.28.0.30^{🇺🇸 COGENT}
			PTR	`auth2.dns.cogentco.com`

`cogentco.com`

	NS	`auth1.dns.cogentco.com`
	NS	`auth2.dns.cogentco.com`
	MX	`cogentco-com.mail.protection.outlook.com`
	A	2001:550:1::cc01 ^{🇺🇸 COGENT}
	A	38.100.128.10^{🇩🇪 COGENT}

rank #84499 globally
rank #42356 in the tld

Up

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AI analysis

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

demarc.cogentco.com's delegation uses 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 at least partially shares name servers with other domains, including inforoutesantecanada.ca, upsmychoicepromo.com, dra.de, 79.31.207.in-addr.arpa and sandmaenchen.de.

These name servers are commonly used 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 and ns2.vodafone-ip.de.

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

dbq