CF1760005092318-tsm20251009080619

IPLIST.NET - 12.1.206.in-addr.arpa

Search for IP or hostnames:

12.1.206.in-addr.arpa checked at 2025-10-09T10:18:12.306Z 143ms 50/50/50 100% R:12

12.1.206.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

1.206.in-addr.arpa

NSauth1.dns.cogentco.com
NSauth2.dns.cogentco.com

Up

Starts with same word

Starts similarily

AI analysis

12.1.206.in-addr.arpa is parent of 11.12.1.206.in-addr.arpa, 14.12.1.206.in-addr.arpa and 9.12.1.206.in-addr.arpa.

12.1.206.in-addr.arpa is delegated to two name servers: auth1.dns.cogentco.com and auth2.dns.cogentco.com.

12.1.206.in-addr.arpa uses the same name server setup as other domains such as 72.38.in-addr.arpa, 204.254.64.in-addr.arpa, 75.13.149.in-addr.arpa, 68.124.38.in-addr.arpa and 88.55.216.in-addr.arpa.

12.1.206.in-addr.arpa shares name servers with other domains at least partially, for example ups.my, 106.153.207.in-addr.arpa, 98.115.209.in-addr.arpa, stjohns.edu and 20.115.209.in-addr.arpa.

these name servers are often used with the following: 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, ext-ns1.columbia.edu, auth4.dns.cogentco.com and auth5.dns.cogentco.com.

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.
dbq

IEHYvoj CF johedugfp 2025-10-09