CF1759267381087-tsm20250929235914

NSLIST.NET - 21.59.128.in-addr.arpa

Search for IP or hostnames:

21.59.128.in-addr.arpa checked at 2025-09-30T21:23:01.072Z 226ms 65/65/65 100% R:16

21.59.128.in-addr.arpa

NSext-ns1.columbia.edu
A128.59.1.1🇺🇸 Columbia University
PTRext-ns1.columbia.edu
NSext-ns2.columbia.edu
A2001:18d8::53 🇺🇸 Columbia University
PTRext-ns2.columbia.edu
A2001:18d8:1:1::1:1 🇺🇸 Columbia University
PTRext-ns2.columbia.edu
A128.59.1.2🇺🇸 Columbia University
PTRext-ns2.columbia.edu
NSapollo.cs.columbia.edu
A128.59.16.69🇺🇸 Columbia University
PTRapollo.cs.columbia.edu
NSdiana.cs.columbia.edu
A128.59.11.232🇺🇸 Columbia University
PTRdiana.cs.columbia.edu
NSsundog.ee.columbia.edu
A128.59.64.59🇺🇸 Columbia University
PTRriverside.ee.columbia.edu
PTRsundog.ee.columbia.edu

59.128.in-addr.arpa

NSext-ns1.columbia.edu
NSauth1.dns.cogentco.com
NSauth2.dns.cogentco.com
NSauth4.dns.cogentco.com
NSauth5.dns.cogentco.com

Up

Starts with same word

Starts similarily

AI analysis

21.59.128.in-addr.arpa is the parent of 5.21.59.128.in-addr.arpa, 161.21.59.128.in-addr.arpa, 9.21.59.128.in-addr.arpa, 104.21.59.128.in-addr.arpa and 142.21.59.128.in-addr.arpa.

21.59.128.in-addr.arpa is delegated to five name servers: ext-ns1.columbia.edu, ext-ns2.columbia.edu, apollo.cs.columbia.edu, diana.cs.columbia.edu and sundog.ee.columbia.edu.

21.59.128.in-addr.arpa at least partially shares name servers with other domains, including brooklyn.cuny.edu, braingenethics.cumc.columbia.edu, amistadresource.org, law.columbia.edu and laguardia.cuny.edu.

These name servers are typically used together with the name servers acme.ucc.cuny.edu, lavinia.cis.cuny.edu, ns1.nyp.org, ns2.nyp.org, ns10.customer.level3.net, ns15.customer.level3.net, auth1.dns.cogentco.com, auth2.dns.cogentco.com, auth4.dns.cogentco.com and auth5.dns.cogentco.com.

Three IP numbers:

Host ext-ns2.columbia.edu points to 2001:18d8::53, 2001:18d8:1:1::1:1 and 128.59.1.2.

One IP number:

Host ext-ns1.columbia.edu points to 128.59.1.1.

Host apollo.cs.columbia.edu points to 128.59.16.69.

Host diana.cs.columbia.edu points to 128.59.11.232.

Host sundog.ee.columbia.edu points to 128.59.64.59.

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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