WWW.RTSAK.COM - 20.51.133.in-addr.arpa

Search for IP or hostnames:

20.51.133.in-addr.arpa checked at 2025-10-19T00:59:33.746Z 691ms 39/39/39 100% R:17

`20.51.133.in-addr.arpa`

NS	`icho23-dns01.u.tsukuba.ac.jp`
		A	130.158.234.38^{🇯🇵 AS37917}
			PTR	`icho23-dns01.u.tsukuba.ac.jp`
NS	`icho23-dns02.u.tsukuba.ac.jp`
		A	130.158.234.39^{🇯🇵 AS37917}
			PTR	`icho23-dns02.u.tsukuba.ac.jp`

`51.133.in-addr.arpa`

	NS	`azami.cc.tsukuba.ac.jp`
	NS	`kasumi.cc.tsukuba.ac.jp`
	NS	`myouga.cc.tsukuba.ac.jp`

Starts with same word

20.gs

20.cc

20.com

20.gifts

20.de

20.lv

20.nl

20.dk

20.fyi

20.fi

20.ua

20.tel

20.net

20.eu

20.world

20.com.vn

20.run

20.be

20.amsterdam

20.ca

20.com.ua

20.estate

20.ms

20.vision

20.ie

20.biz

20.co.uk

20.vc

20.cl

20.se

20.nu

20.kz

20.in-addr.arpa

20.to

20.co.kr

20.no

20.la

20.pl

Starts similarily

20.ie

02.gen.tr

02.co.uk

02.to

20.biz

20.co.uk

20.vc

20.cl

02.be

02.ca

20.se

20.nu

02.se

20.kz

02.com.pl

02.com.tr

20.in-addr.arpa

02.tv

02.eu

02.tel

02.com.tw

02.world

20.to

20.co.kr

20.no

02.cz

20.la

02.fi

02.mk

02.ro

02.de

20.pl

02.pl

02.org

02.cn

20.gs

20.cc

02.ru

20.com

20.gifts

20.de

20.lv

02.ag

20.nl

02.no

20.dk

20.fyi

20.fi

02.dk

20.ua

02.cl

02.gay

20.tel

20.net

20.eu

02.nl

20.world

02.sk

02.link

02.si

20.com.vn

02.fr

02.hu

20.run

02.fyi

02.network

02.kz

20.be

02.cm

02.cc

20.amsterdam

02.app

20.ca

20.com.ua

02.fitness

20.estate

20.ms

02.lv

20.vision

02.co

02.su

02.net

AI analysis

20.51.133.in-addr.arpa is delegated to two name servers icho23-dns01.u.tsukuba.ac.jp and icho23-dns02.u.tsukuba.ac.jp.

20.51.133.in-addr.arpa uses the same name server setup as 1.51.133.in-addr.arpa and 234.158.130.in-addr.arpa.

20.51.133.in-addr.arpa at least partially shares name servers with other domains, for instance u.tsukuba.ac.jp.

these name servers are often used together with dns-x.sinet.ad.jp, azami.cc.tsukuba.ac.jp, kasumi.cc.tsukuba.ac.jp and myouga.cc.tsukuba.ac.jp.

Host names with one IP number:

icho23-dns01.u.tsukuba.ac.jp points to 130.158.234.38

icho23-dns02.u.tsukuba.ac.jp points to 130.158.234.39

dbq