IPLIST.NET - 21.59.128.in-addr.arpa

Search for IP or hostnames:

21.59.128.in-addr.arpa checked at 2025-10-06T09:22:11.169Z 754ms 73/73/73 100% R:17

`21.59.128.in-addr.arpa`

NS	`ext-ns1.columbia.edu`
		A	2001:18d8::35 ^{🇺🇸 Columbia University}
			PTR	`ext-ns1.columbia.edu`
		A	2001:18d8:1::1:1 ^{🇺🇸 Columbia University}
			PTR	`ext-ns1.columbia.edu`
		A	128.59.1.1^{🇺🇸 Columbia University}
			PTR	`ext-ns1.columbia.edu`
NS	`ext-ns2.columbia.edu`
		A	2001:18d8::53 ^{🇺🇸 Columbia University}
			PTR	`ext-ns2.columbia.edu`
		A	2001:18d8:1:1::1:1 ^{🇺🇸 Columbia University}
			PTR	`ext-ns2.columbia.edu`
		A	128.59.1.2^{🇺🇸 Columbia University}
			PTR	`ext-ns2.columbia.edu`
NS	`apollo.cs.columbia.edu`
		A	128.59.16.69^{🇺🇸 Columbia University}
			PTR	`apollo.cs.columbia.edu`
NS	`diana.cs.columbia.edu`
		A	128.59.11.232^{🇺🇸 Columbia University}
			PTR	`diana.cs.columbia.edu`
NS	`sundog.ee.columbia.edu`
		A	128.59.64.59^{🇺🇸 Columbia University}
			PTR	`riverside.ee.columbia.edu`
			PTR	`sundog.ee.columbia.edu`

`59.128.in-addr.arpa`

	NS	`ext-ns1.columbia.edu`
	NS	`auth1.dns.cogentco.com`
	NS	`auth2.dns.cogentco.com`
	NS	`auth4.dns.cogentco.com`
	NS	`auth5.dns.cogentco.com`

Up

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

142.21.59.128.in-addr.arpa

Starts with same word

21.la

21.ag

21.diamonds

21.cn

21.de

21.training

21.ca

21.org

21.co.uk

21.vc

21.am

21.rs

21.com

21.bet

21.center

21.kz

21.web.app

21.su

21.network

21.si

21.gen.tr

21.ph

21.is

21.be

21.com.ua

21.pe

21.edu.ar

21.gg

21.capital

21.dk

21.email

21.sk

21.immo

21.cz

21.style

21.nl

21.agency

21.co

21.biz

21.lv

21.ru

21.co.za

21.finance

21.ax

21.nu

21.business

21.casino

21.pl

21.ee

21.tv

21.partners

21.to

21.ie

21.photos

21.cc

21.fr

21.by

21.com.es

21.life

21.run

21.pw

21.org.cn

21.net

Starts similarily

12.com

21.ca

12.ca

21.org

12.sh.cn

12.ru

21.co.uk

12.limo

21.vc

21.am

12.biz

21.rs

12.to

21.com

12.net

12.la

21.bet

12.at

21.center

21.kz

12.ws

12.s3.amazonaws.com

21.web.app

21.su

21.network

21.si

21.gen.tr

21.ph

12.lv

21.is

21.be

21.com.ua

12.cl

12.ph

12.ma

12.rs

21.pe

21.edu.ar

21.gg

21.capital

12.de

12.in-addr.arpa

21.dk

12.ag

21.email

12.kz

12.ie

12.com.ua

21.sk

12.cz

21.immo

12.eu

21.cz

12.uk

12.life

21.style

12.city

12.dk

21.nl

21.agency

12.org.ru

12.nu

21.co

21.biz

21.lv

21.ru

21.co.za

12.ai

21.finance

12.hk

21.ax

12.amsterdam

12.fr

21.nu

21.business

12.vc

21.casino

21.pl

21.ee

12.am

12.agency

12.digital

12.ac.cn

12.lt

21.tv

12.si

21.partners

21.to

21.ie

21.photos

21.cc

12.be

12.fi

12.cc

12.is

21.fr

21.by

12.solutions

12.dyndns.tv

21.com.es

AI analysis

21.59.128.in-addr.arpa is a 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, for instance brooklyn.cuny.edu, braingenethics.cumc.columbia.edu, amistadresource.org, law.columbia.edu and laguardia.cuny.edu.

These name servers are commonly 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.

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.

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

Host names with one IP number:

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

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

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

dbq