CF1757210308882-tsm20250906182357

DNSWHOIS.INFO - 21.135.in-addr.arpa

Search for IP or hostnames:

21.135.in-addr.arpa checked at 2025-09-07T01:58:28.863Z 208ms 64/64/64 100% R:14

`21.135.in-addr.arpa`

	NS	`ns1.attdns.com`
			A	2001:1890:1286:320::c:2 ^{🇺🇸 AT&T US - 7018}
			A	144.160.112.22^{🇺🇸 AS797}
				PTR	`ns1.attdns.com`
	NS	`ns2.attdns.com`
			A	2001:1890:1c00:3320::c:3 ^{🇺🇸 AT&T US - 7018}
			A	144.160.128.140^{🇺🇸 AS797}
				PTR	`ns2.attdns.com`
	NS	`ns3.attdns.com`
			A	2001:1890:1c00:5323::c:3 ^{🇺🇸 AT&T US - 7018}
			A	144.160.20.47^{🇺🇸 AS797}
				PTR	`ns3.attdns.com`
	NS	`ns4.attdns.com`
			A	2001:1890:1c00:6320::c:6 ^{🇺🇸 AT&T US - 7018}
			A	144.160.229.11^{🇺🇸 AS797}
				PTR	`ns4.attdns.com`

`135.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
`255.21.135.in-addr.arpa`
`12.21.135.in-addr.arpa`

Starts with same word
`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`
`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`

Starts similarily
`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`
`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`
`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`

AI analysis

Both 255.21.135.in-addr.arpa and 12.21.135.in-addr.arpa are children of 21.135.in-addr.arpa.

Four name servers, ns1.attdns.com, ns2.attdns.com, ns3.attdns.com, and ns4.attdns.com, are delegated to 21.135.in-addr.arpa.

Name servers of 21.135.in-addr.arpa are at least partially shared with other domains such as dsl.chic01.pacbell.net, 195.128.192.in-addr.arpa, dialup.spfdmo.swbell.net, lightspeed.plfdil.sbcglobal.net, and 94.135.in-addr.arpa.

ns1.attdns.com, ns2.attdns.com, ns3.attdns.com, and ns4.attdns.com each point to two IP numbers respectively: 2001:1890:1286:320::c:2, 144.160.112.22; 2001:1890:1c00:3320::c:3, 144.160.128.140; 2001:1890:1c00:5323::c:3, 144.160.20.47; 2001:1890:1c00:6320::c:6, 144.160.229.11.

dbq

rjeUFln CF johedugfp 2025-09-07