IPLIST.NET - 173.63.in-addr.arpa

Search for IP or hostnames:

173.63.in-addr.arpa checked at 2025-11-03T15:13:10.349Z 759ms 50/50/50 100% R:14

`173.63.in-addr.arpa`

NS	`auth1.dns.cogentco.com`
		A	2001:550:1:a::d ^{🇺🇸 COGENT}
			PTR	`auth1.dns.cogentco.com`
		A	66.28.0.14^{🇺🇸 COGENT}
			PTR	`auth1.dns.cogentco.com`
NS	`auth2.dns.cogentco.com`
		A	2001:550:1:b::d ^{🇺🇸 COGENT}
			PTR	`auth2.dns.cogentco.com`
		A	66.28.0.30^{🇺🇸 COGENT}
			PTR	`auth2.dns.cogentco.com`

`63.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

69.173.63.in-addr.arpa

118.173.63.in-addr.arpa

Starts with same word

173.one

173.host

173.org

173.biz

173.net

173.jp

173.co

173.fr

173.nl

173.eu

173.ca

173.cool

173.hk

173.cn

173.dk

173.de

173.io

173.me

173.in-addr.arpa

173.tv

173.in

173.com.ua

173.tw

173.ir

173.com.tw

173.com

173.hu

173.by

173.cz

173.chat

173.cl

173.us

173.la

Starts similarily

713.pl

731.de

713.in

137.co

317.us

317.com

137.org

371.company

173.one

317.it

173.host

317.ch

317.run

371.de

137.es

137.hu

173.org

173.biz

137.me

731.dk

173.net

137.city

137.in-addr.arpa

173.jp

713.biz

713.mobi

317.today

731.com

317.tv

173.co

137.ph

731.tv

317.ie

173.fr

137.by

713.ru

317.gr

173.nl

317.ink

173.eu

731.me

173.ca

173.cool

173.hk

173.cn

173.dk

137.be

137.com

173.de

713.de

137.dk

137.it

731.co.uk

173.io

173.me

137.ink

137.pl

371.com

137.rehab

713.cn

173.in-addr.arpa

371.cn

317.de

713.dk

173.tv

137.tv

173.in

317.ru

173.com.ua

371.biz

173.tw

731.co

713.city

137.cl

713.co.jp

713.ir

137.co.jp

317.cn

371.la

137.hk

731.pl

713.org

173.ir

713.at

173.com.tw

713.cz

173.com

173.hu

137.online

317.jp

731.it

713.com

317.in

173.by

371.jp

173.cz

173.chat

137.la

317.fr

137.at

371.net

713.me

371.cz

317.limo

317.is

173.cl

173.us

713.eu

371.tv

731.eu

317.net

137.info

137.ro

137.de

731.net.cn

173.la

317.nl

137.ca

AI analysis

173.63.in-addr.arpa is the parent of 69.173.63.in-addr.arpa and 118.173.63.in-addr.arpa.

Two name servers auth1.dns.cogentco.com and auth2.dns.cogentco.com handle the delegation for 173.63.in-addr.arpa.

173.63.in-addr.arpa shares the same name server setup as other domains, for instance 144.99.38.in-addr.arpa, 103.111.38.in-addr.arpa, 83.87.38.in-addr.arpa, 245.38.in-addr.arpa and 69.100.38.in-addr.arpa.

173.63.in-addr.arpa at least partially shares name servers with other domains, for instance 174.104.193.in-addr.arpa, vendorship.com, amistadresource.org, law.columbia.edu and railmaster.be.

these name servers are commonly used with nsa.ups.com, nsb.ups.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, ext-ns1.columbia.edu, auth4.dns.cogentco.com, auth5.dns.cogentco.com, ns4.arcadiz.be, dns.infrabel.be and secdns.infrabel.be.

Host names with two IP numbers:

auth1.dns.cogentco.com points to 2001:550:1:a::d and 66.28.0.14.

auth2.dns.cogentco.com points to 2001:550:1:b::d and 66.28.0.30.

dbq