CF1763374457015-tsm20251116095642

DNSWHOIS.INFO - 139.102.38.in-addr.arpa

Search for IP or hostnames:

139.102.38.in-addr.arpa checked at 2025-11-17T10:14:16.972Z 753ms 50/50/50 100% R:10 allDone:true timedOut:false

139.102.38.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

102.38.in-addr.arpa

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

Up

Starts with same word

Starts similarily

AI analysis

251.139.102.38.in-addr.arpa has 139.102.38.in-addr.arpa as its parent.

Two name servers auth1.dns.cogentco.com and auth2.dns.cogentco.com are delegated to 139.102.38.in-addr.arpa.

139.102.38.in-addr.arpa uses the same name server configuration as other domains, such as 129.72.38.in-addr.arpa, 106.105.38.in-addr.arpa, 99.119.38.in-addr.arpa, 179.88.38.in-addr.arpa and 60.11.149.in-addr.arpa.

139.102.38.in-addr.arpa at least partially shares name servers with other domains such as 114.231.67.in-addr.arpa, infonotice.org, lynx-express.com, daktronics.ca and hoerspielkino.de.

these name servers are commonly used with nsa.ups.com, nsb.ups.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, auth1.fullservicenetwork.com and auth3.fullservicenetwork.com.

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.
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