CF1763325622220-tsm20251116095642

WWW.RTSAK.COM - 100.145.156.in-addr.arpa

Search for IP or hostnames:

100.145.156.in-addr.arpa checked at 2025-11-16T20:40:22.109Z 442ms 53/53/53 100% R:13 allDone:true timedOut:false

100.145.156.in-addr.arpa

NSext-ns1.columbia.edu
A2001:18d8::35 🇺🇸 COLUMBIA-GW
PTRext-ns1.columbia.edu
A2001:18d8:1::1:1 🇺🇸 COLUMBIA-GW
PTRext-ns1.columbia.edu
A128.59.1.1🇺🇸 COLUMBIA-GW
PTRext-ns1.columbia.edu
NSns1.nyp.org
A156.145.252.11🇺🇸 NYP-INTERNET
PTRns1.nyp.org
NSns2.nyp.org
A143.104.238.11🇺🇸 NYP-INTERNET
PTRns2.nyp.org

145.156.in-addr.arpa

NSns1.nyp.org
NSns2.nyp.org
NSlex-iblxext1.med.cornell.edu
NSyork-iblxext1.med.cornell.edu

Up

Starts with same word

Starts similarily

AI analysis

100.145.156.in-addr.arpa is parent of 85.100.145.156.in-addr.arpa and 104.100.145.156.in-addr.arpa.

100.145.156.in-addr.arpa is delegated to three name servers: ext-ns1.columbia.edu, ns1.nyp.org and ns2.nyp.org.

100.145.156.in-addr.arpa at least partially shares name servers with other domains, for instance 171.111.156.in-addr.arpa, 220.251.140.in-addr.arpa, jazzstudiesonline.org, osr.columbia.edu and iri.columbia.edu.

These name servers are often used together with the name servers lex-iblxext1.med.cornell.edu, york-iblxext1.med.cornell.edu, ext-ns2.columbia.edu, lavinia.cis.cuny.edu, acme.ucc.cuny.edu, ns10.customer.level3.net, ns15.customer.level3.net, auth1.dns.cogentco.com, auth2.dns.cogentco.com and auth4.dns.cogentco.com.

Host names with three IP numbers:

ext-ns1.columbia.edu points to: 2001:18d8::35, 2001:18d8:1::1:1 and 128.59.1.1.

Host names with one IP number:

ns1.nyp.org points to: 156.145.252.11.

ns2.nyp.org points to: 143.104.238.11.

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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