DNSWHOIS.INFO - 21.125.38.in-addr.arpa

Search for IP or hostnames:

21.125.38.in-addr.arpa checked at 2025-11-30T04:11:43.710Z 104ms 50/50/50 100% R:12 allDone:true timedOut:false

21.125.38.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

125.38.in-addr.arpa

Up

Starts with same word

Starts similarily

AI analysis

21.125.38.in-addr.arpa is the parent of 202.21.125.38.in-addr.arpa and 201.21.125.38.in-addr.arpa.

Two name servers auth1.dns.cogentco.com and auth2.dns.cogentco.com handle the delegation for 21.125.38.in-addr.arpa.

21.125.38.in-addr.arpa shares the same name server setup as other domains, for instance 8.246.192.in-addr.arpa, 200.119.38.in-addr.arpa, 169.63.in-addr.arpa, 121.102.66.in-addr.arpa and 137.129.38.in-addr.arpa.

21.125.38.in-addr.arpa at least partially shares name servers with other domains, for instance ups.kz, infowaycertified.ca, urpic.be, upsexpress.net and ups.com.mx.

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