CF1763610495790-tsm20251116095642

IPLIST.NET - 138.68.38.in-addr.arpa

Search for IP or hostnames:

138.68.38.in-addr.arpa checked at 2025-11-20T03:48:15.775Z 101ms 50/50/50 100% R:11 allDone:true timedOut:false

138.68.38.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

68.38.in-addr.arpa

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

Up

Starts with same word

Starts similarily

AI analysis

138.68.38.in-addr.arpa is parent of 254.138.68.38.in-addr.arpa.

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

138.68.38.in-addr.arpa shares the same name server configuration as other domains, such as 7.125.38.in-addr.arpa, lax05.atlas.cogentco.com, 188.99.38.in-addr.arpa, ord04.atlas.cogentco.com and 81.56.154.in-addr.arpa.

138.68.38.in-addr.arpa at least partially shares its name servers with other domains, for instance infowaycertified.ca, urpic.be, upsexpress.net, ups.com.mx and apps.prr2-ocp.ups.com.

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.infoway-inforoute.ca and ns2.infoway-inforoute.ca.

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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