CF1757238448246-tsm20250906182357

NSLIST.NET - dns.cogentco.com

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dns.cogentco.com checked at 2025-09-07T09:47:28.152Z 2016ms 56/56/56 100% R:8

dns.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

AI analysis

The parent of host names auth1.dns.cogentco.com, auth3.dns.cogentco.com, auth0-na.dns.cogentco.com, auth2.dns.cogentco.com, auth0-eu.dns.cogentco.com, among others, is dns.cogentco.com.

Two name servers, auth1.dns.cogentco.com and auth2.dns.cogentco.com, are delegated for dns.cogentco.com.

The name server setup of dns.cogentco.com is identical to that of several other domains, such as 14.149.in-addr.arpa, 82.61.209.in-addr.arpa, 52.137.205.in-addr.arpa, 131.6.149.in-addr.arpa, and 86.119.38.in-addr.arpa.

The domain dns.cogentco.com shares name servers, at least in part, with other domains such as 218.160.192.in-addr.arpa, upsjob.fr, 237.41.209.in-addr.arpa, deutschlandradio-hoerfunkrat.de, and upsfeedback.com.

The name servers 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, pulsar2.hbci.com, pulsar3.hbci.com, pulsar.hbci.com, and dns.luminet.net are frequently utilized in conjunction.

auth1.dns.cogentco.com and auth2.dns.cogentco.com each point to two IP numbers: 2001:550:1:a::d, 66.28.0.14 and 2001:550:1:b::d, 66.28.0.30 respectively.

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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svleiIj CF johedugfp 2025-09-07