DNSWHOIS.INFO - 51.in-addr.arpa

Search for IP or hostnames:

51.in-addr.arpa checked at 2025-09-07T01:38:17.953Z 438ms 77/77/77 100% R:21

`51.in-addr.arpa`

NS	`ns3.afrinic.net`
		A	2001:500:14:6100:ad::1 ^{🇺🇸 PCH AS42}
			PTR	`ns3.afrinic.net`
		A	204.61.216.100^{🇺🇸 PCH AS42}
			PTR	`ns3.afrinic.net`
NS	`ns4.apnic.net`
		A	2001:dd8:12::53 ^{🇦🇺 APNIC-NS1}
			PTR	`ns4.apnic.net`
		A	202.12.31.53^{🇦🇺 APNIC-NS1}
			PTR	`ns4.apnic.net`
NS	`rirns.arin.net`
		A	2620:38:2000::53 ^{🇺🇸 ARIN Operations Anycast}
			PTR	`rirns.arin.net`
		A	199.253.249.53^{🇺🇸 ARIN Operations Anycast}
			PTR	`rirns.arin.net`
NS	`ns3.lacnic.net`
		A	2001:13c7:7002:3000::14 ^{🇧🇷 LACNIC}
			PTR	`ns3.lacnic.net`
		A	200.3.13.14^{🇧🇷 LACNIC}
			PTR	`ns3.lacnic.net`
NS	`pri.authdns.ripe.net`
		A	2a13:27c0:30::5 ^{🇳🇱 EHG}
			PTR	`pri.authdns.ripe.net`
		A	193.0.9.5^{🇳🇱 RIPE NCC Authoritative DNS}
			PTR	`pri.authdns.ripe.net`

`in-addr.arpa`

	NS	`a.in-addr-servers.arpa`
	NS	`b.in-addr-servers.arpa`
	NS	`c.in-addr-servers.arpa`
	NS	`d.in-addr-servers.arpa`
	NS	`e.in-addr-servers.arpa`
	NS	`f.in-addr-servers.arpa`

Up
`14.51.in-addr.arpa`
`104.51.in-addr.arpa`
`85.51.in-addr.arpa`
`8.51.in-addr.arpa`
`7.51.in-addr.arpa`
`21.51.in-addr.arpa`
`96.51.in-addr.arpa`
`112.51.in-addr.arpa`
`171.51.in-addr.arpa`
`194.51.in-addr.arpa`
`11.51.in-addr.arpa`
`175.51.in-addr.arpa`
`51.51.in-addr.arpa`
`158.51.in-addr.arpa`
`17.51.in-addr.arpa`
`144.51.in-addr.arpa`
`198.51.in-addr.arpa`
`10.51.in-addr.arpa`
`146.51.in-addr.arpa`
`140.51.in-addr.arpa`
`48.51.in-addr.arpa`
`92.51.in-addr.arpa`
`6.51.in-addr.arpa`
`174.51.in-addr.arpa`
`159.51.in-addr.arpa`
`120.51.in-addr.arpa`
`105.51.in-addr.arpa`
`20.51.in-addr.arpa`
`24.51.in-addr.arpa`
`16.51.in-addr.arpa`
`13.51.in-addr.arpa`
`191.51.in-addr.arpa`
`94.51.in-addr.arpa`
`142.51.in-addr.arpa`
`103.51.in-addr.arpa`
`4.51.in-addr.arpa`
`84.51.in-addr.arpa`
`148.51.in-addr.arpa`
`137.51.in-addr.arpa`
`19.51.in-addr.arpa`
`107.51.in-addr.arpa`
`222.51.in-addr.arpa`
`12.51.in-addr.arpa`
`9.51.in-addr.arpa`
`132.51.in-addr.arpa`
`138.51.in-addr.arpa`
`15.51.in-addr.arpa`
`116.51.in-addr.arpa`
`44.51.in-addr.arpa`
`141.51.in-addr.arpa`
`124.51.in-addr.arpa`
`145.51.in-addr.arpa`
`241.51.in-addr.arpa`
`136.51.in-addr.arpa`

Starts with same word
`51.hk`
`51.ro`
`51.dp.ua`
`51.com`
`51.wf`
`51.ph`
`51.se`
`51.com.br`
`51.com.tr`
`51.ws`
`51.com.hk`
`51.lt`
`51.hu`
`51.wtf`
`51.world`
`51.com.tw`
`51.de`
`51.cz`
`51.chat`
`51.win`
`51.ru`
`51.gs`
`51.is`
`51.eu`
`51.cool`
`51.biz`
`51.no`
`51.vg`
`51.tv`
`51.net.cn`
`51.gold`
`51.be`
`51.org`
`51.su`
`51.am`
`51.ie`
`51.co`
`51.cc`
`51.fr`
`51.pl`
`51.ca`
`51.nu`
`51.fyi`
`51.al`
`51.com.ua`
`51.lv`
`51.net`
`51.la`
`51.in-addr.arpa`
`51.fi`
`51.school`
`51.bet`

Starts similarily
`15.business`
`15.org.ua`
`51.al`
`51.com.ua`
`15.football`
`15.be`
`51.lv`
`15.fi`
`15.tt`
`51.net`
`51.la`
`15.com`
`51.in-addr.arpa`
`15.org`
`51.fi`
`51.school`
`51.bet`
`15.chat`
`15.la`
`51.hk`
`15.com.mx`
`51.ro`
`15.ph`
`51.dp.ua`
`51.com`
`15.lv`
`15.de`
`51.wf`
`51.ph`
`51.se`
`51.com.br`
`51.com.tr`
`51.ws`
`15.gold`
`15.tel`
`51.com.hk`
`51.lt`
`15.cn`
`51.hu`
`15.nl`
`15.ie`
`51.wtf`
`15.com.ua`
`15.in-addr.arpa`
`51.world`
`51.com.tw`
`51.de`
`15.ro`
`15.hk`
`51.cz`
`51.chat`
`15.am`
`15.ae`
`51.win`
`51.ru`
`15.graphics`
`51.gs`
`15.io`
`51.is`
`15.app`
`15.biz`
`51.eu`
`51.cool`
`15.com.tr`
`51.biz`
`51.no`
`51.vg`
`51.tv`
`15.ca`
`15.uk`
`15.cl`
`15.rs`
`51.net.cn`
`51.gold`
`51.be`
`51.org`
`15.wtf`
`15.fyi`
`15.net`
`15.cz`
`51.su`
`51.am`
`15.sk`
`51.ie`
`51.co`
`51.cc`
`51.fr`
`15.su`
`51.pl`
`15.no`
`51.ca`
`51.nu`
`15.is`
`15.eu`
`15.by`
`51.fyi`
`15.ai`

AI analysis

The parent of 14.51.in-addr.arpa, 104.51.in-addr.arpa, 85.51.in-addr.arpa, 8.51.in-addr.arpa, 7.51.in-addr.arpa, and a few other host names is 51.in-addr.arpa.

The five name servers, ns3.afrinic.net, ns4.apnic.net, rirns.arin.net, ns3.lacnic.net, and pri.authdns.ripe.net, have been delegated to 51.in-addr.arpa.

The name servers of 51.in-addr.arpa are at least partially shared with other domains such as edu.mw, 59.in-addr.arpa, 2.in-addr.arpa, 0.c.2.ip6.arpa, and 113.192.196.in-addr.arpa.

The name servers manus.authdns.ripe.net, ns2.apnic.net, ns1.apnic.net, apnic.authdns.ripe.net, ns1.afrinic.net, ns2.afrinic.net, afrinic.authdns.ripe.net, a.lactld.org, lacnic.authdns.ripe.net, and a.arpa.dns.br are frequently used in conjunction.

ns3.afrinic.net, ns4.apnic.net, rirns.arin.net, ns3.lacnic.net, and pri.authdns.ripe.net all point to two IP numbers each: 2001:500:14:6100:ad::1, 204.61.216.100, 2001:dd8:12::53, 202.12.31.53, 2620:38:2000::53, 199.253.249.53, 2001:13c7:7002:3000::14, 200.3.13.14, 2a13:27c0:30::5, and 193.0.9.5.

dbq