WWW.RTSAK.COM - 217.2.209.in-addr.arpa

Search for IP or hostnames:

217.2.209.in-addr.arpa checked at 2025-10-23T15:29:11.411Z 426ms 47/47/47 100% R:17

`217.2.209.in-addr.arpa`

NS	`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.cc

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

AI analysis

217.2.209.in-addr.arpa is delegated to two name servers: ext-ns1.columbia.edu and ext-ns2.columbia.edu.

217.2.209.in-addr.arpa uses the same name server setup as other domains, for instance 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 shares name servers with other domains at least partially, 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 the name servers 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-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:

ext-ns1.columbia.edu points to 128.59.1.1.

dbq