CF1763336361455-tsm20251116095642

DNSWHOIS.INFO - 43.100.38.in-addr.arpa

Search for IP or hostnames:

43.100.38.in-addr.arpa checked at 2025-11-16T23:39:21.438Z 106ms 50/50/50 100% R:13 allDone:true timedOut:false

43.100.38.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

100.38.in-addr.arpa

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

Up

Starts with same word

Starts similarily

AI analysis

43.100.38.in-addr.arpa has children including 20.43.100.38.in-addr.arpa, 197.43.100.38.in-addr.arpa, 198.43.100.38.in-addr.arpa, 26.43.100.38.in-addr.arpa, 196.43.100.38.in-addr.arpa and a few other host names.

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

43.100.38.in-addr.arpa uses the same name server setup as other domains, including 210.11.208.in-addr.arpa, 158.64.38.in-addr.arpa, 181.11.199.in-addr.arpa, 236.164.205.in-addr.arpa and 34.149.in-addr.arpa.

At least part of the name servers for 43.100.38.in-addr.arpa are shared with other domains, for instance usd305.com, upsff.com, sfitruck.com, bradley.edu and 234.183.206.in-addr.arpa.

these name servers are often used together 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, ns2.vodafone-ip.de, ns1.usd305.com and ns2.usd305.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.
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