DNSWHOIS.INFO - 51.21.110.in-addr.arpa

Search for IP or hostnames:

51.21.110.in-addr.arpa checked at 2025-11-18T20:26:44.469Z 1342ms 39/39/39 100% R:9 allDone:true timedOut:false

`51.21.110.in-addr.arpa`

NS	`ns2.mel.optusnet.com.au`
		A	211.31.132.98^{🇦🇺 MPX-AS}
			PTR	`ns2.mel.optusnet.com.au`
NS	`ns1.syd.optusnet.com.au`
		A	211.29.152.97^{🇦🇺 MPX-AS}
			PTR	`ns1.syd.optusnet.com.au`

`21.110.in-addr.arpa`

	NS	`dnsappsvc01.syd.optusnet.com.au`
	NS	`dnsappsvc02.syd.optusnet.com.au`

Starts with same word

51.cool

51.biz

51.no

51.vg

51.tv

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.to

51.wtf

51.world

51.com.tw

51.de

51.cz

51.chat

51.win

51.ru

51.gs

51.is

51.eu

Starts similarily

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.ee

15.tel

51.com.hk

51.lt

15.cn

51.hu

51.to

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.hk

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.gold

51.be

51.org

15.wtf

15.fyi

15.net

15.pl

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

AI analysis

51.21.110.in-addr.arpa's delegation uses two name servers: ns2.mel.optusnet.com.au and ns1.syd.optusnet.com.au.

51.21.110.in-addr.arpa uses the same name server setup as other domains, such as 54.104.122.in-addr.arpa, 91.176.49.in-addr.arpa, 132.104.122.in-addr.arpa, 76.176.49.in-addr.arpa and 157.196.49.in-addr.arpa.

51.21.110.in-addr.arpa at least partially shares name servers with other domains, including 74.42.1.in-addr.arpa, 105.42.1.in-addr.arpa, 9.43.1.in-addr.arpa, 62.32.175.in-addr.arpa and 71.193.49.in-addr.arpa.

These name servers are commonly used together with the name servers dns2-slave01.mel.optusnet.com.au, dns2-slave02.mel.optusnet.com.au, dns1-slave01.syd.optusnet.com.au and dns1-slave02.syd.optusnet.com.au.

Host names with a single IP address: ns2.mel.optusnet.com.au points to 211.31.132.98; ns1.syd.optusnet.com.au points to 211.29.152.97.

dbq