CF1763488755238-tsm20251116095642

NSLIST.NET - 221.99.38.in-addr.arpa

Search for IP or hostnames:

221.99.38.in-addr.arpa checked at 2025-11-18T17:59:15.228Z 123ms 47/47/47 100% R:11 allDone:true timedOut:false

221.99.38.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

99.38.in-addr.arpa

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

Starts with same word

Starts similarily

AI analysis

221.99.38.in-addr.arpa's delegation is to two name servers auth1.dns.cogentco.com and auth2.dns.cogentco.com.

221.99.38.in-addr.arpa shares the same name server configuration as other domains, such as 255.233.146.in-addr.arpa, 1.7.149.in-addr.arpa, 64.49.154.in-addr.arpa, 30.242.198.in-addr.arpa and qls01.atlas.cogentco.com.

221.99.38.in-addr.arpa at least partially shares its name servers with other domains, for instance rbb-24.de, upsonline.co.kr, 72.108.192.in-addr.arpa, ups.nz and canadahealthinfoway.com.

these name servers are commonly used with the name servers cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, nsa.ups.com, nsb.ups.com, 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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