DNSWHOIS.INFO - 172.21.100.in-addr.arpa

Search for IP or hostnames:

172.21.100.in-addr.arpa checked at 2025-10-21T10:17:11.772Z 182ms 48/48/48 100% R:11

`172.21.100.in-addr.arpa`

NS	`ns1-24-us-west-2.ec2-rdns.amazonaws.com`
		A	205.251.197.77^{🇺🇸 Amazon}
			PTR	`ns-1357.awsdns-41.org`
NS	`ns2-24-us-west-2.ec2-rdns.amazonaws.com`
		A	205.251.198.5^{🇺🇸 Amazon}
			PTR	`ns-1541.awsdns-00.co.uk`
NS	`ns3-24-us-west-2.ec2-rdns.amazonaws.com`
		A	205.251.193.225^{🇺🇸 Amazon}
			PTR	`ns-481.awsdns-60.com`
NS	`ns4-24-us-west-2.ec2-rdns.amazonaws.com`
		A	205.251.194.254^{🇺🇸 Amazon}
			PTR	`ns-766.awsdns-31.net`

`21.100.in-addr.arpa`

	NS	`ns1-16-us-west-2.ec2-rdns.amazonaws.com`
	NS	`ns2-16-us-west-2.ec2-rdns.amazonaws.com`
	NS	`ns3-16-us-west-2.ec2-rdns.amazonaws.com`
	NS	`ns4-16-us-west-2.ec2-rdns.amazonaws.com`

Up

79.172.21.100.in-addr.arpa

46.172.21.100.in-addr.arpa

137.172.21.100.in-addr.arpa

144.172.21.100.in-addr.arpa

255.172.21.100.in-addr.arpa

3.172.21.100.in-addr.arpa

160.172.21.100.in-addr.arpa

105.172.21.100.in-addr.arpa

Starts with same word

172.zone

172.ws

172.net

172.hk

172.la

172.nl

172.ch

172.fr

172.jp

172.org

172.in-addr.arpa

172.in

172.co

172.ph

172.ir

172.com

172.one

172.aero

172.de

172.us

172.it

172.tw

172.ca

Starts similarily

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.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

217.ch

127.us

172.zone

127.co

271.eu

217.ws

127.ws

712.jpn.com

217.am

127.net

217.church

127.me

172.ws

712.ru

172.net

127.one

217.eu

271.cc

172.hk

127.hk

712.us

127.network

127.cn

712.at

AI analysis

172.21.100.in-addr.arpa is a parent of 79.172.21.100.in-addr.arpa, 46.172.21.100.in-addr.arpa, 137.172.21.100.in-addr.arpa, 144.172.21.100.in-addr.arpa, 255.172.21.100.in-addr.arpa and a few other host names.

172.21.100.in-addr.arpa is delegated to four name servers: ns1-24-us-west-2.ec2-rdns.amazonaws.com, ns2-24-us-west-2.ec2-rdns.amazonaws.com, ns3-24-us-west-2.ec2-rdns.amazonaws.com and ns4-24-us-west-2.ec2-rdns.amazonaws.com.

172.21.100.in-addr.arpa at least partially shares name servers with other domains, for instance 102.162.35.in-addr.arpa, 6.112.50.in-addr.arpa, 186.232.44.in-addr.arpa, 176.218.54.in-addr.arpa and 185.239.44.in-addr.arpa.

Host names with one IP number:

ns1-24-us-west-2.ec2-rdns.amazonaws.com points to 205.251.197.77.

ns2-24-us-west-2.ec2-rdns.amazonaws.com points to 205.251.198.5.

ns3-24-us-west-2.ec2-rdns.amazonaws.com points to 205.251.193.225.

ns4-24-us-west-2.ec2-rdns.amazonaws.com points to 205.251.194.254.

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