CF1762958811155-tsm20251109205412

DNSWHOIS.INFO - 197.9.217.in-addr.arpa

Search for IP or hostnames:

197.9.217.in-addr.arpa checked at 2025-11-12T14:46:51.145Z 162ms 50/50/50 100% R:11 allDone:true timedOut:false

197.9.217.in-addr.arpa

NSauth1.dns.cogentco.com
A2001:550:1:a::d 🇺🇸 COGENT
PTRauth1.dns.cogentco.com
A66.28.0.14🇺🇸 COGENT
PTRauth1.dns.cogentco.com
NSauth2.dns.cogentco.com
A2001:550:1:b::d 🇺🇸 COGENT
PTRauth2.dns.cogentco.com
A66.28.0.30🇺🇸 COGENT
PTRauth2.dns.cogentco.com

9.217.in-addr.arpa

Up

Starts with same word

Starts similarily

AI analysis

197.9.217.in-addr.arpa is a parent of 66.197.9.217.in-addr.arpa.

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

197.9.217.in-addr.arpa uses the same name server setup as other domains, including 240.200.38.in-addr.arpa, 69.98.38.in-addr.arpa, 34.3.206.in-addr.arpa, 66.40.149.in-addr.arpa and rose-tree.com.

At least part of the name servers for 197.9.217.in-addr.arpa are shared with other domains, for instance 245.41.209.in-addr.arpa, upsers-upspac.com, railaccess.be, tvard.de and vt.edu.

these name servers are commonly used with 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, ns1.renegadetech.com, ns2.renegadetech.com, ns1.fnsi.net and ns2.fnsi.net.

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