DNSWHOIS.INFO - 217.2.209.in-addr.arpa

Search for IP or hostnames:

217.2.209.in-addr.arpa checked at 2025-10-17T06:03:01.208Z 590ms 55/55/55 100% R:17

`217.2.209.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`

`2.209.in-addr.arpa`

	NS	`ns10-auth.windstream.net`
	NS	`ns11-auth.windstream.net`
	NS	`ns12-auth.windstream.net`
	NS	`ns9-auth.windstream.net`

Starts with same word

217.co

217.de

217.in-addr.arpa

217.dk

217.jp

217.in

217.ru

217.net

217.fr

217.at

217.cc

217.waw.pl

217.es

217.ca

217.ch

217.ws

217.am

217.church

217.eu

217.com

217.tv

217.be

217.cn

Starts similarily

217.tv

127.dk

721.dk

271.com.cn

172.fr

172.jp

721.cc

217.be

271.ir

712.cc

217.cn

172.org

712.it

172.in-addr.arpa

127.cc

271.co

721.studio

172.in

217.co

127.ca

721.co

217.de

127.ch

712.net

721.me

127.ru

712.fr

127.sunnyday.jp

271.ca

217.in-addr.arpa

712.jp

217.dk

127.it

172.co

127.fi

127.fr

172.ph

217.jp

127.wtf

712.cn

172.ir

172.com

172.one

172.aero

172.de

712.run

217.in

712.es

127.la

127.at

271.ph

217.ru

172.us

217.net

127.xxx

172.it

721.ph

271.jp

127.mx

721.cn

721.de

217.fr

127.in-addr.arpa

721.ru

172.tw

217.at

127.run

712.eu

172.ca

127.io

127.ink

712.lt

721.tw

712.com.cn

271.nl

271.spb.ru

271.com

271.ch

127.ath.cx

217.cc

127.pictures

127.jp

271.us

217.waw.pl

271.se

721.org

721.in

721.com

721.ink

217.es

721.net

712.cz

712.com

217.ca

127.cz

271.de

127.de

127.com

721.info

217.ch

AI analysis

Two name servers ext-ns1.columbia.edu and ext-ns2.columbia.edu are delegated to 217.2.209.in-addr.arpa.

217.2.209.in-addr.arpa uses the same name server configuration as other domains, such as jazzstudiesonline.com, columbia.university, 82.12.192.in-addr.arpa, 43.5.192.in-addr.arpa and 221.2.209.in-addr.arpa.

217.2.209.in-addr.arpa at least partially shares name servers with other domains such as postsecondaryresearch.org, facil.columbia.edu, shadlenlab.columbia.edu, ncdptraining.cumc.columbia.edu and 23.59.128.in-addr.arpa.

These name servers are often used together with apollo.cs.columbia.edu, sundog.ee.columbia.edu, ns1.nyp.org, ns2.nyp.org, lavinia.cis.cuny.edu, acme.ucc.cuny.edu, diana.cs.columbia.edu, ns10.customer.level3.net, ns15.customer.level3.net and auth1.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.

dbq