CF1762760959282-tsm20251109205412

WWW.RTSAK.COM - 100.140.38.in-addr.arpa

Search for IP or hostnames:

100.140.38.in-addr.arpa checked at 2025-11-10T07:49:19.263Z 147ms 50/50/50 100% R:11 allDone:true timedOut:false

100.140.38.in-addr.arpa

NSauth1.dns.cogentco.com
A2001:550:1:a::d 🇺🇸 Cogent Communications, Inc.
PTRauth1.dns.cogentco.com
A66.28.0.14🇺🇸 Cogent Communications, Inc.
PTRauth1.dns.cogentco.com
NSauth2.dns.cogentco.com
A2001:550:1:b::d 🇺🇸 Cogent Communications, Inc.
PTRauth2.dns.cogentco.com
A66.28.0.30🇺🇸 Cogent Communications, Inc.
PTRauth2.dns.cogentco.com

140.38.in-addr.arpa

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

Up

Starts with same word

Starts similarily

AI analysis

58.100.140.38.in-addr.arpa is a child of 100.140.38.in-addr.arpa.

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

100.140.38.in-addr.arpa uses the same name server setup as other domains, such as 42.1.199.in-addr.arpa, 110.98.38.in-addr.arpa, 148.107.38.in-addr.arpa, 6.208.in-addr.arpa and 41.117.130.in-addr.arpa.

100.140.38.in-addr.arpa at least partially shares name servers with other domains, including info-infrabel.be, redstormsports.com, 177.28.216.in-addr.arpa, mailboxesetc.com and 225.41.209.in-addr.arpa.

These name servers are commonly used with ns1.fnsi.net, ns2.fnsi.net, nsa.ups.com, nsb.ups.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, ns3.fnsi.net, ns4.arcadiz.be, dns.infrabel.be and secdns.infrabel.be.

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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