WWW.RTSAK.COM - 221.137.210.in-addr.arpa

Search for IP or hostnames:

221.137.210.in-addr.arpa checked at 2025-11-18T05:45:10.239Z 956ms 62/62/62 100% R:12 allDone:true timedOut:false

`221.137.210.in-addr.arpa`

NS	`ume2.shiraume.ac.jp`
		A	210.137.221.5^{🇯🇵 SINET-AS}
			PTR	`ume2.shiraume.ac.jp`
NS	`dns-x.sinet.ad.jp`
		A	2001:2f8:0:10::53 ^{🇯🇵 SINET-AS}
			PTR	`dns-x1.sinet.ad.jp`
			PTR	`dns-x.sinet.ad.jp`
		A	2001:2f8:0:11::53 ^{🇯🇵 SINET-AS}
			PTR	`dns-x2.sinet.ad.jp`
			PTR	`dns-x.sinet.ad.jp`
		A	2001:2f8:0:12::53 ^{🇯🇵 SINET-AS}
			PTR	`dns-x3.sinet.ad.jp`
			PTR	`dns-x.sinet.ad.jp`
		A	150.100.18.2^{🇯🇵 SINET-AS}
			PTR	`dns-x1.sinet.ad.jp`
			PTR	`dns-x.sinet.ad.jp`
		A	150.100.18.6^{🇯🇵 SINET-AS}
			PTR	`dns-x2.sinet.ad.jp`
			PTR	`dns-x.sinet.ad.jp`
		A	150.100.18.10^{🇯🇵 SINET-AS}
			PTR	`dns-x3.sinet.ad.jp`
			PTR	`dns-x.sinet.ad.jp`

`137.210.in-addr.arpa`

	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`

Up

5.221.137.210.in-addr.arpa

2.221.137.210.in-addr.arpa

157.221.137.210.in-addr.arpa

Starts with same word

221.cn

221.org.cn

221.life

221.com.ua

221.us

221.one

221.net

221.es

221.co

221.de

221.in-addr.arpa

221.tel

221.ca

221.com

221.ru

221.la

221.org

221.co.uk

221.money

221.cz

Starts similarily

212.at

212.ph

122.biz

122.dk

212.insure

221.net

212.com.ua

122.ru

221.es

122.ltd

221.co

122.one

212.group

221.de

212.plumbing

212.codes

212.ua

212.de

122.cz

212.nl

122.cc

122.info

212.vc

212.ch

212.kr

212.mobi

122.vn

221.in-addr.arpa

221.tel

212.pl

122.in-addr.arpa

212.dk

221.ca

212.ws

122.us

122.in

212.lv

221.com

212.us

212.bz

221.ru

122.gov.cn

122.ph

212.in

212.se

221.la

122.de

221.org

221.co.uk

122.lv

212.fund

212.church

212.ca

212.jetzt

212.run

221.money

212.one

212.com.mx

212.email

212.lt

221.cz

122.fyi

212.graphics

221.cn

221.org.cn

212.com

122.it

122.nl

212.vin

122.su

212.mx

122.cl

122.ch

212.com.tr

212.cc

122.city

212.by

212.ru

122.eu

212.in-addr.arpa

212.photos

212.amsterdam

212.fr

212.me

212.guide

221.life

221.com.ua

122.be

212.guru

212.com.cn

212.net

122.at

212.tel

122.cn

221.us

122.kim

212.sk

221.one

122.run

122.co.il

122.co

AI analysis

221.137.210.in-addr.arpa is parent of 5.221.137.210.in-addr.arpa, 2.221.137.210.in-addr.arpa and 157.221.137.210.in-addr.arpa.

221.137.210.in-addr.arpa is delegated to two name servers: ume2.shiraume.ac.jp and dns-x.sinet.ad.jp.

221.137.210.in-addr.arpa shares the same name server setup as other domains, for instance shiraume.ac.jp.

221.137.210.in-addr.arpa shares name servers with other domains at least partially, for example 13.240.202.in-addr.arpa, sasebo.ac.jp, shinshu-u.ac.jp, u-gakugei.ac.jp and kyukyo-u.ac.jp.

these name servers are often used with the following: ns1.kuins.kyoto-u.ac.jp, ns2.kuins.kyoto-u.ac.jp, guname0.imc.gifu-u.ac.jp, sains.shizuoka.ac.jp, ns.ipc.shizuoka.ac.jp, dns1.u-ryukyu.ac.jp, ns0.u-ryukyu.ac.jp, adns01.tuat.ac.jp, adns02.tuat.ac.jp and ns.n-fukushi.ac.jp.

Host names with six IP numbers

dns-x.sinet.ad.jp points to 2001:2f8:0:10::53, 2001:2f8:0:11::53, 2001:2f8:0:12::53, 150.100.18.2, 150.100.18.6 and 150.100.18.10

Host names with one IP number

ume2.shiraume.ac.jp points to 210.137.221.5

dbq