DNSWHOIS.INFO - 81.231.91.in-addr.arpa

Search for IP or hostnames:

81.231.91.in-addr.arpa checked at 2025-11-22T04:37:40.949Z 679ms 50/50/50 100% R:25 allDone:true timedOut:false

`81.231.91.in-addr.arpa`

NS	`dns2.alfa-system.pl`
		A	2a0f:1700:1::454 ^{🇩🇪 ALFA-SYSTEM M. Piwowarski, A. Widera Spolka Jawna}
			PTR	`dns2.alfa-system.pl`
		A	91.231.70.58^{🇵🇱 ALFA-SYSTEM M. Piwowarski, A. Widera Spolka Jawna}
			PTR	`dns2.alfa-system.pl`
NS	`dns.alfa-system.pl`
		A	2a0f:1700:1::452 ^{🇩🇪 ALFA-SYSTEM M. Piwowarski, A. Widera Spolka Jawna}
			PTR	`dns.alfa-system.pl`
		A	91.231.70.37^{🇵🇱 ALFA-SYSTEM M. Piwowarski, A. Widera Spolka Jawna}
			PTR	`dns.alfa-system.pl`

`231.91.in-addr.arpa`

Up

54.81.231.91.in-addr.arpa

Starts with same word

81.cm

81.fr

81.cc

81.be

81.in-addr.arpa

81.to

81.cool

81.mil.cn

81.plus

81.de

81.biz

81.chat

81.me

81.gs

81.cz

81.ph

81.lt

81.pl

81.ws

81.fyi

81.nu

81.no

81.ca

81.com.hk

81.cx

81.amsterdam

81.cn

81.cl

81.com

81.sk

81.co.uk

81.la

81.world

81.hk

81.se

Starts similarily

81.se

18.fi

18.tv

81.cm

18.pe

18.rs

18.cn

81.fr

18.hu

18.hk

18.pl

81.cc

18.cl

18.ag

81.be

81.in-addr.arpa

18.dating

18.md

81.to

18.org

81.cool

18.fr

18.com

18.sk

81.mil.cn

81.plus

18.group

81.de

18.plus

81.biz

81.chat

81.me

18.kz

81.gs

18.tl

18.al

81.cz

81.ph

81.lt

18.eu

18.de

81.pl

18.co

18.lt

18.app

18.tel

18.cool

18.uz

18.no

18.in-addr.arpa

81.ws

18.lc

18.gs

18.githubusercontent.com

81.fyi

81.nu

18.world

81.no

81.ca

81.com.hk

18.ph

18.watch

81.cx

18.com.cn

18.ca

18.cc

18.ws

18.network

18.com.tw

18.com.pl

81.amsterdam

18.com.tr

18.amsterdam

81.cn

18.chat

18.dk

18.tech

81.cl

18.digital

18.ms

81.com

18.money

81.sk

18.show

18.cz

18.com.hk

18.nl

18.vip

81.co.uk

81.la

18.net.au

81.world

81.hk

AI analysis

81.231.91.in-addr.arpa is the parent of 54.81.231.91.in-addr.arpa.

81.231.91.in-addr.arpa's delegation uses two name servers, dns2.alfa-system.pl and dns.alfa-system.pl.

81.231.91.in-addr.arpa shares the same name server setup as other domains, for example 24.97.176.in-addr.arpa, gliwice.net.pl, torbyfilcowe.pl, deltatelkom.pl and 26.97.176.in-addr.arpa.

81.231.91.in-addr.arpa at least partially shares name servers with other domains, including alfa-system.pl, 180.25.89.in-addr.arpa, ostrowski.eu, 181.25.89.in-addr.arpa and wporzo.pl.

these name servers are commonly used together with fns1.42.pl, ns2.3s.pl and fns2.42.pl.

Host names with two IPs:

dns2.alfa-system.pl points to: 2a0f:1700:1::454 and 91.231.70.58

dns.alfa-system.pl points to: 2a0f:1700:1::452 and 91.231.70.37

dbq