DNSWHOIS.INFO - 21.3.in-addr.arpa

Search for IP or hostnames:

21.3.in-addr.arpa checked at 2025-09-08T02:29:47.378Z 137ms 48/48/48 100% R:12

`21.3.in-addr.arpa`

NS	`ns1-16-us-east-2.ec2-rdns.amazonaws.com`
		A	205.251.197.174^{🇺🇸 Amazon}
			PTR	`ns-1454.awsdns-53.org`
NS	`ns2-16-us-east-2.ec2-rdns.amazonaws.com`
		A	205.251.199.162^{🇺🇸 Amazon}
			PTR	`ns-1954.awsdns-52.co.uk`
NS	`ns3-16-us-east-2.ec2-rdns.amazonaws.com`
		A	205.251.193.162^{🇺🇸 Amazon}
			PTR	`ns-418.awsdns-52.com`
NS	`ns4-16-us-east-2.ec2-rdns.amazonaws.com`
		A	205.251.194.123^{🇺🇸 Amazon}
			PTR	`ns-635.awsdns-15.net`

`3.in-addr.arpa`

	NS	`r.arin.net`
	NS	`u.arin.net`
	NS	`x.arin.net`
	NS	`y.arin.net`
	NS	`z.arin.net`
	NS	`arin.authdns.ripe.net`

Up
`132.21.3.in-addr.arpa`
`108.21.3.in-addr.arpa`
`63.21.3.in-addr.arpa`
`15.21.3.in-addr.arpa`
`90.21.3.in-addr.arpa`
`152.21.3.in-addr.arpa`
`72.21.3.in-addr.arpa`
`44.21.3.in-addr.arpa`
`73.21.3.in-addr.arpa`
`179.21.3.in-addr.arpa`
`91.21.3.in-addr.arpa`
`46.21.3.in-addr.arpa`
`182.21.3.in-addr.arpa`
`194.21.3.in-addr.arpa`
`162.21.3.in-addr.arpa`
`64.21.3.in-addr.arpa`
`107.21.3.in-addr.arpa`
`116.21.3.in-addr.arpa`
`0.21.3.in-addr.arpa`
`22.21.3.in-addr.arpa`
`52.21.3.in-addr.arpa`
`98.21.3.in-addr.arpa`
`59.21.3.in-addr.arpa`
`172.21.3.in-addr.arpa`
`118.21.3.in-addr.arpa`
`2.21.3.in-addr.arpa`
`192.21.3.in-addr.arpa`
`210.21.3.in-addr.arpa`
`61.21.3.in-addr.arpa`
`244.21.3.in-addr.arpa`
`148.21.3.in-addr.arpa`
`193.21.3.in-addr.arpa`
`70.21.3.in-addr.arpa`
`71.21.3.in-addr.arpa`
`49.21.3.in-addr.arpa`
`83.21.3.in-addr.arpa`
`17.21.3.in-addr.arpa`
`235.21.3.in-addr.arpa`
`54.21.3.in-addr.arpa`
`197.21.3.in-addr.arpa`
`130.21.3.in-addr.arpa`
`94.21.3.in-addr.arpa`
`153.21.3.in-addr.arpa`
`123.21.3.in-addr.arpa`
`226.21.3.in-addr.arpa`
`200.21.3.in-addr.arpa`
`117.21.3.in-addr.arpa`
`20.21.3.in-addr.arpa`
`5.21.3.in-addr.arpa`
`95.21.3.in-addr.arpa`
`7.21.3.in-addr.arpa`
`215.21.3.in-addr.arpa`
`84.21.3.in-addr.arpa`
`38.21.3.in-addr.arpa`
`201.21.3.in-addr.arpa`
`1.21.3.in-addr.arpa`
`150.21.3.in-addr.arpa`
`131.21.3.in-addr.arpa`
`14.21.3.in-addr.arpa`
`57.21.3.in-addr.arpa`
`239.21.3.in-addr.arpa`
`99.21.3.in-addr.arpa`
`101.21.3.in-addr.arpa`
`253.21.3.in-addr.arpa`
`170.21.3.in-addr.arpa`
`184.21.3.in-addr.arpa`
`139.21.3.in-addr.arpa`
`211.21.3.in-addr.arpa`
`188.21.3.in-addr.arpa`
`220.21.3.in-addr.arpa`
`18.21.3.in-addr.arpa`
`121.21.3.in-addr.arpa`
`213.21.3.in-addr.arpa`
`219.21.3.in-addr.arpa`
`24.21.3.in-addr.arpa`
`127.21.3.in-addr.arpa`
`3.21.3.in-addr.arpa`
`41.21.3.in-addr.arpa`
`109.21.3.in-addr.arpa`
`169.21.3.in-addr.arpa`
`9.21.3.in-addr.arpa`
`74.21.3.in-addr.arpa`
`114.21.3.in-addr.arpa`
`143.21.3.in-addr.arpa`
`40.21.3.in-addr.arpa`
`199.21.3.in-addr.arpa`
`138.21.3.in-addr.arpa`
`36.21.3.in-addr.arpa`
`115.21.3.in-addr.arpa`
`25.21.3.in-addr.arpa`
`191.21.3.in-addr.arpa`
`4.21.3.in-addr.arpa`
`51.21.3.in-addr.arpa`
`175.21.3.in-addr.arpa`
`13.21.3.in-addr.arpa`
`68.21.3.in-addr.arpa`
`66.21.3.in-addr.arpa`
`81.21.3.in-addr.arpa`
`212.21.3.in-addr.arpa`
`180.21.3.in-addr.arpa`
`135.21.3.in-addr.arpa`
`53.21.3.in-addr.arpa`
`133.21.3.in-addr.arpa`
`89.21.3.in-addr.arpa`
`10.21.3.in-addr.arpa`
`65.21.3.in-addr.arpa`
`236.21.3.in-addr.arpa`
`157.21.3.in-addr.arpa`
`214.21.3.in-addr.arpa`
`30.21.3.in-addr.arpa`
`76.21.3.in-addr.arpa`
`250.21.3.in-addr.arpa`
`105.21.3.in-addr.arpa`
`58.21.3.in-addr.arpa`
`124.21.3.in-addr.arpa`
`229.21.3.in-addr.arpa`
`245.21.3.in-addr.arpa`
`82.21.3.in-addr.arpa`
`79.21.3.in-addr.arpa`
`60.21.3.in-addr.arpa`
`78.21.3.in-addr.arpa`
`249.21.3.in-addr.arpa`
`216.21.3.in-addr.arpa`
`238.21.3.in-addr.arpa`
`195.21.3.in-addr.arpa`
`146.21.3.in-addr.arpa`
`217.21.3.in-addr.arpa`
`160.21.3.in-addr.arpa`
`80.21.3.in-addr.arpa`
`151.21.3.in-addr.arpa`
`208.21.3.in-addr.arpa`
`104.21.3.in-addr.arpa`
`161.21.3.in-addr.arpa`
`209.21.3.in-addr.arpa`
`165.21.3.in-addr.arpa`
`189.21.3.in-addr.arpa`
`218.21.3.in-addr.arpa`
`171.21.3.in-addr.arpa`
`77.21.3.in-addr.arpa`
`181.21.3.in-addr.arpa`
`33.21.3.in-addr.arpa`
`88.21.3.in-addr.arpa`
`145.21.3.in-addr.arpa`
`144.21.3.in-addr.arpa`
`6.21.3.in-addr.arpa`
`156.21.3.in-addr.arpa`
`11.21.3.in-addr.arpa`
`96.21.3.in-addr.arpa`
`230.21.3.in-addr.arpa`
`198.21.3.in-addr.arpa`
`196.21.3.in-addr.arpa`
`185.21.3.in-addr.arpa`
`8.21.3.in-addr.arpa`
`225.21.3.in-addr.arpa`
`223.21.3.in-addr.arpa`
`254.21.3.in-addr.arpa`
`85.21.3.in-addr.arpa`
`23.21.3.in-addr.arpa`
`183.21.3.in-addr.arpa`
`136.21.3.in-addr.arpa`
`110.21.3.in-addr.arpa`
`147.21.3.in-addr.arpa`
`155.21.3.in-addr.arpa`

Starts with same word
`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`
`21.ph`
`21.is`
`21.be`
`21.com.ua`
`21.pe`
`21.edu.ar`
`21.gg`
`21.capital`
`21.dk`
`21.email`
`21.sk`

Starts similarily
`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.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`
`12.com.ua`
`21.sk`
`12.cz`
`21.immo`
`12.eu`
`21.cz`
`12.uk`
`12.life`
`21.style`

AI analysis

The parent of 132.21.3.in-addr.arpa, 108.21.3.in-addr.arpa, 63.21.3.in-addr.arpa, 15.21.3.in-addr.arpa, 90.21.3.in-addr.arpa, as well as hundreds of other host names, is 21.3.in-addr.arpa.

Four name servers, ns1-16-us-east-2.ec2-rdns.amazonaws.com, ns2-16-us-east-2.ec2-rdns.amazonaws.com, ns3-16-us-east-2.ec2-rdns.amazonaws.com, and ns4-16-us-east-2.ec2-rdns.amazonaws.com, are delegated to 21.3.in-addr.arpa.

The name servers of 21.3.in-addr.arpa are at least partially shared with other domains such as 145.3.in-addr.arpa, 19.3.in-addr.arpa, 220.18.in-addr.arpa, 14.52.in-addr.arpa, and 118.18.in-addr.arpa.

ns1-16-us-east-2.ec2-rdns.amazonaws.com, ns2-16-us-east-2.ec2-rdns.amazonaws.com, ns3-16-us-east-2.ec2-rdns.amazonaws.com, and ns4-16-us-east-2.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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