DNSWHOIS.INFO - 51.9.38.in-addr.arpa

Search for IP or hostnames:

51.9.38.in-addr.arpa checked at 2025-10-20T16:19:08.198Z 451ms 47/47/47 100% R:11

`51.9.38.in-addr.arpa`

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

`9.38.in-addr.arpa`

	NS	`auth1.dns.cogentco.com`
	NS	`auth2.dns.cogentco.com`

Starts with same word

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.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

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

Starts similarily

51.hu

15.nl

15.ie

51.wtf

15.com.ua

15.in-addr.arpa

51.world

15.com.tw

51.com.tw

51.de

15.ro

15.se

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.cc

51.fr

15.su

51.pl

15.no

51.ca

51.nu

15.is

15.eu

15.hu

15.by

51.fyi

15.ai

15.business

15.org.ua

51.al

51.com.ua

15.football

15.be

51.lv

15.fi

15.energy

51.net

51.la

15.com

51.in-addr.arpa

15.org

51.fi

51.school

51.bet

15.chat

15.la

15.xyz

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

AI analysis

51.9.38.in-addr.arpa is delegated to two name servers: auth1.dns.cogentco.com and auth2.dns.cogentco.com.

51.9.38.in-addr.arpa uses the same name server setup as other domains, including 136.142.38.in-addr.arpa, 198.38.in-addr.arpa, 110.103.38.in-addr.arpa, 51.154.in-addr.arpa and 88.117.38.in-addr.arpa.

At least part of the name servers for 51.9.38.in-addr.arpa are shared with other domains, for instance meinfritz.de, ups.sg, maxitrac.com, info-radio.de and mailboxesetclocal.com.

These name servers are commonly used together with the name servers nsa.ups.com, nsb.ups.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, ns1.vodafone-ip.de and ns2.vodafone-ip.de.

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