IPLIST.NET - 251.255.128.in-addr.arpa

Search for IP or hostnames:

251.255.128.in-addr.arpa checked at 2025-10-05T22:31:50.149Z 767ms 87/87/87 100% R:16

`251.255.128.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`
PTR	`rtr-core-itf.net.uiowa.edu`
		A	2620:0:e50:1::43 ^{🇺🇸 University of Iowa}
			PTR	`rtr-core-itf.net.uiowa.edu`
		A	128.255.204.67^{🇺🇸 University of Iowa}
			PTR	`rtr-core-itf.net.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`

Up

140.251.255.128.in-addr.arpa

167.251.255.128.in-addr.arpa

Starts with same word

251.ru

251.sh

251.nl

251.com.cn

251.ph

251.in

251.cz

251.cc

251.fr

251.eu

251.com

251.at

251.us

251.ca

251.de

Starts similarily

521.at

512.bike

512.biz

215.cn

125.nyc

152.co.il

251.ph

251.in

152.tel

125.ir

512.fr

215.pl

125.pl

512.ch

512.consulting

215.fr

512.solar

125.ovh

125.cc

521.co

251.cz

512.vin

125.tel

251.cc

125.be

521.it

125.cz

152.in

251.fr

521.moe

215.eu

125.in

215.tel

215.be

215.tech

152.jp

521.design

215.ir

251.eu

521.in

251.com

215.fi

125.dk

521.run

512.com.tw

521.me

215.de

152.nl

512.eu

125.nu

512.am

512.in

152.eu

512.hu

152.uk

512.group

125.cn

215.marketing

521.dk

152.cn

251.at

152.info

125.group

521.eu

125.tv

512.cz

521.shopping

125.us

521.net

512.se

251.us

512.ca

512.sk

152.at

125.co

512.la

152.de

215.es

521.de

512.com

521.fr

215.nl

215.dk

125.info

152.ph

125.hk

152.la

125.ca

512.one

251.ca

215.co

215.net

512.de

215.co.jp

512.red

125.se

512.email

215.it

215.ca

152.in-addr.arpa

521.ca

215.us

215.pw

512.dk

152.com

251.de

512.io

152.pl

215.ru

521.one

521.com

215.la

152.org

521.jp

521.plus

512.pizza

125.es

125.ge

512.ink

152.fr

215.info

125.eu

251.ru

521.cafe

152.us

125.ch

512.tokyo

152.life

521.ru

152.be

521.cc

512.nl

512.it

521.gold

125.net

125.ru

152.tv

152.mobi

521.be

152.com.au

215.io

512.zone

521.cn

512.cc

512.kz

125.in-addr.arpa

521.center

215.life

125.la

125.jp

512.net

125.at

152.io

251.sh

125.fr

251.nl

512.com.do

512.be

125.name

215.in-addr.arpa

251.com.cn

125.de

125.com

AI analysis

251.255.128.in-addr.arpa is parent of 140.251.255.128.in-addr.arpa and 167.251.255.128.in-addr.arpa.

251.255.128.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.

251.255.128.in-addr.arpa at least partially shares name servers with other domains, for instance 203.255.128.in-addr.arpa, president.uiowa.edu, 58.255.128.in-addr.arpa, opl.uiowa.edu and 13.255.128.in-addr.arpa.

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

Host names with two IP numbers:

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

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

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

Host rtr-core-itf.net.uiowa.edu resolves to two IPs: 2620:0:e50:1::43 and 128.255.204.67.

dbq