IPLIST.NET - 217.2.209.in-addr.arpa

Search for IP or hostnames:

217.2.209.in-addr.arpa checked at 2025-10-19T06:13:09.116Z 210ms 55/55/55 100% R:13

`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

217.2.209.in-addr.arpa's delegation is to two name servers ext-ns1.columbia.edu and ext-ns2.columbia.edu.

217.2.209.in-addr.arpa shares 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 its name servers with other domains, for instance postsecondaryresearch.org, facil.columbia.edu, shadlenlab.columbia.edu, ncdptraining.cumc.columbia.edu and 23.59.128.in-addr.arpa.

These name servers are commonly used 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

The host name ext-ns1.columbia.edu points to 2001:18d8::35, 2001:18d8:1::1:1 and 128.59.1.1; the host name ext-ns2.columbia.edu points to 2001:18d8::53, 2001:18d8:1:1::1:1 and 128.59.1.2

dbq