DNSWHOIS.INFO - 21.51.in-addr.arpa

Search for IP or hostnames:

21.51.in-addr.arpa checked at 2025-09-09T22:10:03.410Z 131ms 48/48/48 100% R:11

`21.51.in-addr.arpa`

NS	`ns1-16-eu-north-1.ec2-rdns.amazonaws.com`
		A	205.251.197.174^{🇺🇸 Amazon}
			PTR	`ns-1454.awsdns-53.org`
NS	`ns2-16-eu-north-1.ec2-rdns.amazonaws.com`
		A	205.251.199.162^{🇺🇸 Amazon}
			PTR	`ns-1954.awsdns-52.co.uk`
NS	`ns3-16-eu-north-1.ec2-rdns.amazonaws.com`
		A	205.251.193.162^{🇺🇸 Amazon}
			PTR	`ns-418.awsdns-52.com`
NS	`ns4-16-eu-north-1.ec2-rdns.amazonaws.com`
		A	205.251.194.123^{🇺🇸 Amazon}
			PTR	`ns-635.awsdns-15.net`

`51.in-addr.arpa`

	NS	`ns3.afrinic.net`
	NS	`ns4.apnic.net`
	NS	`rirns.arin.net`
	NS	`ns3.lacnic.net`
	NS	`pri.authdns.ripe.net`

Up
`6.21.51.in-addr.arpa`
`90.21.51.in-addr.arpa`
`44.21.51.in-addr.arpa`
`103.21.51.in-addr.arpa`
`142.21.51.in-addr.arpa`
`10.21.51.in-addr.arpa`
`91.21.51.in-addr.arpa`
`146.21.51.in-addr.arpa`
`33.21.51.in-addr.arpa`
`21.21.51.in-addr.arpa`
`73.21.51.in-addr.arpa`
`132.21.51.in-addr.arpa`
`122.21.51.in-addr.arpa`
`210.21.51.in-addr.arpa`
`114.21.51.in-addr.arpa`
`83.21.51.in-addr.arpa`
`96.21.51.in-addr.arpa`
`43.21.51.in-addr.arpa`
`25.21.51.in-addr.arpa`
`30.21.51.in-addr.arpa`
`109.21.51.in-addr.arpa`
`55.21.51.in-addr.arpa`
`15.21.51.in-addr.arpa`
`155.21.51.in-addr.arpa`
`1.21.51.in-addr.arpa`
`27.21.51.in-addr.arpa`
`48.21.51.in-addr.arpa`
`17.21.51.in-addr.arpa`
`47.21.51.in-addr.arpa`
`75.21.51.in-addr.arpa`
`139.21.51.in-addr.arpa`
`74.21.51.in-addr.arpa`
`98.21.51.in-addr.arpa`
`49.21.51.in-addr.arpa`
`65.21.51.in-addr.arpa`
`166.21.51.in-addr.arpa`
`34.21.51.in-addr.arpa`
`26.21.51.in-addr.arpa`
`19.21.51.in-addr.arpa`
`39.21.51.in-addr.arpa`
`113.21.51.in-addr.arpa`
`241.21.51.in-addr.arpa`
`31.21.51.in-addr.arpa`
`35.21.51.in-addr.arpa`
`145.21.51.in-addr.arpa`
`58.21.51.in-addr.arpa`
`141.21.51.in-addr.arpa`
`9.21.51.in-addr.arpa`
`12.21.51.in-addr.arpa`
`61.21.51.in-addr.arpa`
`51.21.51.in-addr.arpa`
`95.21.51.in-addr.arpa`
`97.21.51.in-addr.arpa`
`63.21.51.in-addr.arpa`
`120.21.51.in-addr.arpa`
`14.21.51.in-addr.arpa`
`107.21.51.in-addr.arpa`
`16.21.51.in-addr.arpa`
`62.21.51.in-addr.arpa`
`86.21.51.in-addr.arpa`
`106.21.51.in-addr.arpa`
`70.21.51.in-addr.arpa`
`150.21.51.in-addr.arpa`
`127.21.51.in-addr.arpa`
`147.21.51.in-addr.arpa`
`93.21.51.in-addr.arpa`
`108.21.51.in-addr.arpa`
`28.21.51.in-addr.arpa`
`143.21.51.in-addr.arpa`
`22.21.51.in-addr.arpa`

Starts with same word
`21.ph`
`21.is`
`21.be`
`21.com.ua`
`21.pe`
`21.edu.ar`
`21.gg`
`21.capital`
`21.dk`
`21.email`
`21.sk`
`21.immo`
`21.cz`
`21.style`
`21.nl`
`21.agency`
`21.co`
`21.biz`
`21.lv`
`21.ru`
`21.co.za`
`21.finance`
`21.ax`
`21.nu`
`21.business`
`21.casino`
`21.pl`
`21.ee`
`21.tv`
`21.partners`
`21.to`
`21.ie`
`21.photos`
`21.cc`
`21.fr`
`21.by`
`21.com.es`
`21.life`
`21.run`
`21.net`
`21.la`
`21.ag`
`21.diamonds`
`21.cn`
`21.de`
`21.training`
`21.ca`
`21.construction`
`21.org`
`21.co.uk`
`21.vc`
`21.am`
`21.rs`
`21.com`
`21.bet`
`21.center`
`21.kz`
`21.web.app`
`21.su`
`21.network`
`21.si`
`21.gen.tr`

Starts similarily
`12.com.ua`
`21.sk`
`12.cz`
`21.immo`
`12.eu`
`21.cz`
`12.uk`
`12.life`
`21.style`
`12.city`
`12.dk`
`21.nl`
`21.agency`
`12.org.ru`
`12.nu`
`21.co`
`21.biz`
`21.lv`
`21.ru`
`21.co.za`
`12.ai`
`21.finance`
`12.hk`
`21.ax`
`12.amsterdam`
`12.fr`
`21.nu`
`21.business`
`12.vc`
`21.casino`
`21.pl`
`21.ee`
`12.am`
`12.agency`
`12.digital`
`12.ac.cn`
`12.lt`
`21.tv`
`12.si`
`21.partners`
`21.to`
`21.ie`
`21.photos`
`21.cc`
`12.be`
`12.fi`
`12.cc`
`12.is`
`21.fr`
`12.chat`
`21.by`
`12.solutions`
`12.dyndns.tv`
`21.com.es`
`21.life`
`12.cm`
`21.run`
`12.world`
`12.by`
`21.net`
`12.org.ua`
`12.works`
`12.cn`
`12.uz`
`21.la`
`21.ag`
`21.diamonds`
`21.cn`
`21.de`
`21.training`
`12.com`
`21.ca`
`12.ca`
`21.construction`
`21.org`
`12.sh.cn`
`12.ru`
`21.co.uk`
`12.limo`
`21.vc`
`21.am`
`12.biz`
`21.rs`
`12.to`
`21.com`
`12.net`
`12.la`
`21.bet`
`12.at`
`21.center`
`21.kz`
`12.ws`
`12.s3.amazonaws.com`
`21.web.app`
`21.su`
`21.network`
`21.si`
`21.gen.tr`
`21.ph`
`12.lv`
`21.is`
`21.be`
`21.com.ua`
`12.cl`
`12.ph`
`12.ma`
`12.rs`
`21.pe`
`21.edu.ar`
`21.gg`
`21.capital`
`12.de`
`12.in-addr.arpa`
`21.dk`
`12.ag`
`21.email`
`12.kz`
`12.ie`

AI analysis

Host names 6.21.51.in-addr.arpa, 90.21.51.in-addr.arpa, 44.21.51.in-addr.arpa, 103.21.51.in-addr.arpa, 142.21.51.in-addr.arpa and several others have 21.51.in-addr.arpa as their parent.

Four name servers, ns1-16-eu-north-1.ec2-rdns.amazonaws.com, ns2-16-eu-north-1.ec2-rdns.amazonaws.com, ns3-16-eu-north-1.ec2-rdns.amazonaws.com, and ns4-16-eu-north-1.ec2-rdns.amazonaws.com, are delegated to 21.51.in-addr.arpa.

The name servers of 21.51.in-addr.arpa are at least partially shared with other domains such as 50.13.in-addr.arpa, 61.13.in-addr.arpa, 51.13.in-addr.arpa, 170.16.in-addr.arpa, and 171.16.in-addr.arpa.

ns1-16-eu-north-1.ec2-rdns.amazonaws.com, ns2-16-eu-north-1.ec2-rdns.amazonaws.com, ns3-16-eu-north-1.ec2-rdns.amazonaws.com, and ns4-16-eu-north-1.ec2-rdns.amazonaws.com all point to their respective IP numbers: 205.251.197.174, 205.251.199.162, 205.251.193.162, and 205.251.194.123.

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