CF1761102070443-tsm20251017082432

MXLIST.NET - sys.cogentco.com

Search for IP or hostnames:

sys.cogentco.com checked at 2025-10-22T03:01:10.426Z 162ms 56/56/56 100% R:11

sys.cogentco.com

NSauth1.dns.cogentco.com
A2001:550:1:a::d πŸ‡ΊπŸ‡Έ COGENT
PTRauth1.dns.cogentco.com
A66.28.0.14πŸ‡ΊπŸ‡Έ COGENT
PTRauth1.dns.cogentco.com
NSauth2.dns.cogentco.com
A2001:550:1:b::d πŸ‡ΊπŸ‡Έ COGENT
PTRauth2.dns.cogentco.com
A66.28.0.30πŸ‡ΊπŸ‡Έ COGENT
PTRauth2.dns.cogentco.com

cogentco.com

NSauth1.dns.cogentco.com
NSauth2.dns.cogentco.com
MXcogentco-com.mail.protection.outlook.com
A2001:550:1::cc01 πŸ‡ΊπŸ‡Έ COGENT
A38.100.128.10πŸ‡©πŸ‡ͺ COGENT
rank #84499 globally
rank #42356 in the tld

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Starts with same word

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AI analysis

sys.cogentco.com is a parent of custtools.sys.cogentco.com, la-cust-mx.sys.cogentco.com, littleb.sys.cogentco.com, ntpmaster1.sys.cogentco.com, res1-la.sys.cogentco.com and a few other host names.

Two name servers auth1.dns.cogentco.com and auth2.dns.cogentco.com handle delegation for sys.cogentco.com.

sys.cogentco.com uses the same name server setup as other domains, for example 68.198.in-addr.arpa, em.aspca.org, stuckynet.com, sbgremote.com and 94.103.38.in-addr.arpa.

sys.cogentco.com partially shares name servers with other domains; examples include columbia.edu, ceramicsonline.org, infowaycertification.com, the-berlin-wall.com and 76.115.209.in-addr.arpa.

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.fnsi.net, ns2.fnsi.net, ns3.fnsi.net, ns1.vodafone-ip.de, ns2.vodafone-ip.de and ext-ns1.columbia.edu.

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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ZqlTPhY CF johedugfp 2025-10-22