CF1763529577460-tsm20251116095642

DNSWHOIS.INFO - 40.91.38.in-addr.arpa

Search for IP or hostnames:

40.91.38.in-addr.arpa checked at 2025-11-19T05:19:37.441Z 134ms 50/50/50 100% R:9 allDone:true timedOut:false

40.91.38.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

91.38.in-addr.arpa

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

Up

Starts with same word

Starts similarily

AI analysis

40.91.38.in-addr.arpa is parent of 18.40.91.38.in-addr.arpa and 20.40.91.38.in-addr.arpa.

40.91.38.in-addr.arpa's delegation uses two name servers, auth1.dns.cogentco.com and auth2.dns.cogentco.com.

40.91.38.in-addr.arpa shares the same name server setup as other domains, for example 63.99.38.in-addr.arpa, sxb03.atlas.cogentco.com, 83.107.38.in-addr.arpa, 193.38.in-addr.arpa and 241.6.185.in-addr.arpa.

40.91.38.in-addr.arpa at least partially shares name servers with other domains, including rbb.eu, theupsstore.cl, freightways.be, lab.tmobileus.com and 1.0.0.0.0.8.8.0.4.0.a.2.ip6.arpa.

These name servers are commonly used with ns1.vodafone-ip.de and ns2.vodafone-ip.de.

Host names with two IPs:

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