WWW.RTSAK.COM - 121.255.128.in-addr.arpa

Search for IP or hostnames:

121.255.128.in-addr.arpa checked at 2025-10-04T04:08:27.774Z 1185ms 72/72/72 100% R:10

`121.255.128.in-addr.arpa`

NS	`dns-core-cb-1.uiowa.edu`
NS	`dns-core-coph-1.uiowa.edu`
NS	`dns-core-itf-1.uiowa.edu`
NS	`dns-core-itf-2.uiowa.edu`
NS	`dns-core-lc-0.uiowa.edu`
NS	`dns-core-lc-1.uiowa.edu`
NS	`dns-wireless-cb-1.uiowa.edu`
NS	`dns-wireless-coph-1.uiowa.edu`
NS	`dns-wireless-lc-1.uiowa.edu`
NS	`dns1.uiowa.edu`
		A	2620:0:e50:3::10 ^{🇺🇸 University of Iowa}
			PTR	`dns-e1.uiowa.edu`
		A	128.255.1.26^{🇺🇸 University of Iowa}
			PTR	`dns-e1.uiowa.edu`
NS	`dns2.uiowa.edu`
		A	2620:0:e50:3::11 ^{🇺🇸 University of Iowa}
			PTR	`dns-e2.uiowa.edu`
		A	128.255.64.26^{🇺🇸 University of Iowa}
			PTR	`dns-e2.uiowa.edu`
NS	`dns3.uiowa.edu`
		A	2620:0:e50:3::12 ^{🇺🇸 University of Iowa}
			PTR	`dns-e3.uiowa.edu`
		A	128.255.1.27^{🇺🇸 University of Iowa}
			PTR	`dns-e3.uiowa.edu`

`255.128.in-addr.arpa`

	NS	`dns-core-cb-1.uiowa.edu`
	NS	`dns-core-coph-1.uiowa.edu`
	NS	`dns-core-itf-1.uiowa.edu`
	NS	`dns-core-itf-2.uiowa.edu`
	NS	`dns-core-lc-0.uiowa.edu`
	NS	`dns-core-lc-1.uiowa.edu`
	NS	`dns-wireless-cb-1.uiowa.edu`
	NS	`dns-wireless-coph-1.uiowa.edu`
	NS	`dns-wireless-lc-1.uiowa.edu`
	NS	`dns1.uiowa.edu`
	NS	`dns2.uiowa.edu`
	NS	`dns3.uiowa.edu`
	NS	`dns-r1.uiowa.net`
	PTR	`rtr-border-lc.net.uiowa.edu`

Starts with same word

121.ag

121.am

121.cc

121.com.au

121.marketing

121.fr

121.agency

121.cz

121.ru

121.eu

121.space

121.fi

121.se

121.church

121.la

121.care

121.ltd

121.de

121.biz

121.info

121.systems

121.ro

121.co

121.vn

121.bz

121.sk

121.com

121.chat

121.li

121.cool

121.me

121.education

121.cm

121.lt

121.group

121.fm

121.co.uk

121.in-addr.arpa

121.digital

121.cafe

121.jp

121.nu

121.wtf

121.it

121.com.cn

121.news

121.health

121.com.pl

121.support

121.global

121.zone

121.design

121.at

121.mx

121.expert

121.com.tw

121.ws

Starts similarily

112.li

112.com.pl

211.tel

112.org

211.city

121.ws

112.pl

121.ag

112.life

112.cl

112.diamonds

211.co

112.wf

112.gov.pl

121.am

112.it

121.cc

121.com.au

121.marketing

112.srl

211.nl

211.eu

121.fr

121.agency

112.mk

121.cz

121.ru

121.eu

112.be

112.fr

112.gov.in

112.world

121.space

121.fi

112.hk

211.us

112.by

112.al

112.jp

211.cz

211.dk

121.se

112.gov.ge

121.church

112.gov.ua

211.ir

112.at

211.run

121.la

112.run

112.guide

121.care

112.events

112.no

121.ltd

112.lv

211.nyc

211.cc

121.de

211.org

112.com.tr

121.biz

121.info

211.it

112.io

121.systems

112.ee

121.ro

211.ltd

112.se

112.wiki

121.co

211.one

121.vn

112.is

211.life

121.bz

112.com

112.net

211.university

211.cn

211.com

112.kiwi

112.co

121.sk

211.mx

112.ir

112.ca

112.ski

121.com

112.dk

112.network

121.chat

211.ph

121.li

112.com.vn

121.cool

121.me

112.es

112.ge

121.education

112.vn

112.today

211.in-addr.arpa

121.cm

112.hu

211.net.cn

112.toys

121.lt

211.tw

112.lt

121.group

121.fm

112.ro

211.online

112.cz

211.in

112.cc

112.la

211.net

112.social

112.hamburg

121.co.uk

112.su

112.fi

AI analysis

121.255.128.in-addr.arpa is delegated to twelve name servers: dns-core-cb-1.uiowa.edu, dns-core-coph-1.uiowa.edu, dns-core-itf-1.uiowa.edu, dns-core-itf-2.uiowa.edu, dns-core-lc-0.uiowa.edu, dns-core-lc-1.uiowa.edu, dns-wireless-cb-1.uiowa.edu, dns-wireless-coph-1.uiowa.edu, dns-wireless-lc-1.uiowa.edu, dns1.uiowa.edu, dns2.uiowa.edu and dns3.uiowa.edu.

121.255.128.in-addr.arpa shares name servers with other domains at least partially, for example neurosurgery.uiowa.edu, 202.255.128.in-addr.arpa, geology.uiowa.edu, rotc.uiowa.edu and health-protection-office.uiowa.edu.

These name servers are commonly used together with dns-r1.uiowa.net, dns1.icaen.uiowa.edu, dns2.icaen.uiowa.edu and dns2.engr.uiowa.edu.

Host names with two IPs:

dns1.uiowa.edu points to 2620:0:e50:3::10 and 128.255.1.26

dns2.uiowa.edu points to 2620:0:e50:3::11 and 128.255.64.26

dns3.uiowa.edu points to 2620:0:e50:3::12 and 128.255.1.27

dbq