CF1759499888118-tsm20251002182459

IPLIST.NET - 31.11.199.in-addr.arpa

Search for IP or hostnames:

31.11.199.in-addr.arpa checked at 2025-10-03T13:58:08.106Z 382ms 47/47/47 100% R:14

31.11.199.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

11.199.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 handle delegation for 31.11.199.in-addr.arpa.

31.11.199.in-addr.arpa uses the same name server setup as other domains, for example 192.74.38.in-addr.arpa, 241.104.38.in-addr.arpa, 34.125.38.in-addr.arpa, 43.103.38.in-addr.arpa and 128.102.38.in-addr.arpa.

31.11.199.in-addr.arpa partially shares name servers with other domains; examples include sipard.net, mnkarate.com, nchcapital.com, upssupplychain.com and berlin-mauer.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 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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