WWW.RTSAK.COM - 81.0.173.in-addr.arpa

Search for IP or hostnames:

81.0.173.in-addr.arpa checked at 2025-09-26T00:55:09.078Z 833ms 95/95/95 100% R:11

`81.0.173.in-addr.arpa`

MX	`mx1.paypalcorp.com`
		A	173.224.165.17^{🇺🇸 PAYPAL-CORP}
			PTR	`mx1.paypalcorp.com`
MX	`mx2.paypalcorp.com`
		A	173.224.161.141^{🇺🇸 PAYPAL-CORP}
			PTR	`mx2.paypalcorp.com`
NS	`pdns100.ultradns.com`
		A	2001:502:f3ff::88 ^{🇺🇸 Neustar}
			PTR	`pdns100.ultradns.com`
		A	156.154.64.100^{🇺🇸 Neustar}
			PTR	`pdns100.ultradns.com`
NS	`pdns100.ultradns.net`
		A	2610:a1:1014::88 ^{🇺🇸 Neustar}
			PTR	`pdns100.ultradns.net`
		A	156.154.65.100^{🇺🇸 Neustar}
			PTR	`pdns100.ultradns.net`
NS	`ns1.p57.dynect.net`
		A	2600:2000:2210::57 ^{🇺🇸 Oracle Cloud Infrastructure}
			PTR	`ns1.p57.dynect.net`
		A	108.59.161.57^{🇺🇸 Oracle Cloud Infrastructure}
			PTR	`ns1.p57.dynect.net`
NS	`ns2.p57.dynect.net`
		A	2600:2000:2220::57 ^{🇺🇸 Oracle Cloud Infrastructure}
			PTR	`ns2.p57.dynect.net`
		A	108.59.162.57^{🇺🇸 Oracle Cloud Infrastructure}
			PTR	`ns2.p57.dynect.net`

`0.173.in-addr.arpa`

Up

65.81.0.173.in-addr.arpa

4.81.0.173.in-addr.arpa

33.81.0.173.in-addr.arpa

140.81.0.173.in-addr.arpa

1.81.0.173.in-addr.arpa

Starts with same word

81.cx

81.amsterdam

81.cn

81.cl

81.com

81.sk

81.co.uk

81.la

81.world

81.hk

81.se

81.cm

81.fr

81.cc

81.org

81.be

81.in-addr.arpa

81.to

81.cool

81.plus

81.de

81.waw.pl

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

Starts similarily

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.wtf

18.com.hk

18.nl

18.vip

81.co.uk

81.la

18.net.au

81.world

81.hk

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

81.org

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.plus

18.group

81.de

81.waw.pl

18.plus

81.biz

81.chat

81.me

18.kz

81.gs

18.gen.tr

18.tl

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.in-addr.arpa

81.ws

18.lc

18.githubusercontent.com

81.fyi

81.nu

18.world

81.no

81.ca

81.com.hk

18.ph

18.watch

AI analysis

81.0.173.in-addr.arpa is a parent of 65.81.0.173.in-addr.arpa, 4.81.0.173.in-addr.arpa, 33.81.0.173.in-addr.arpa, 140.81.0.173.in-addr.arpa and 1.81.0.173.in-addr.arpa.

81.0.173.in-addr.arpa is delegated to four name servers: pdns100.ultradns.com, pdns100.ultradns.net, ns1.p57.dynect.net and ns2.p57.dynect.net.

81.0.173.in-addr.arpa at least partially shares name servers with other domains, for instance mcgraw-hill.info, ashlandes.com, paypal.ch, 82.0.173.in-addr.arpa and paypal-mobilemoney.com.

these name servers are often used together with pdns100.ultradns.biz, pdns100.ultradns.org, ns1.p68.dns.oraclecloud.net and ns2.p68.dns.oraclecloud.net.

Host names with two IP numbers:

pdns100.ultradns.com points to 2001:502:f3ff::88 and 156.154.64.100; pdns100.ultradns.net points to 2610:a1:1014::88 and 156.154.65.100; ns1.p57.dynect.net points to 2600:2000:2210::57 and 108.59.161.57; ns2.p57.dynect.net points to 2600:2000:2220::57 and 108.59.162.57.

Two mail servers handle 81.0.173.in-addr.arpa: mx1.paypalcorp.com and mx2.paypalcorp.com.

81.0.173.in-addr.arpa shares the same mail server setup as other domains, for instance paypal-survey.com, paypal.pl, paypalcorp.com, paypal-partners.com and paypal-collect-money.com.

81.0.173.in-addr.arpa shares some mail servers with other domains, at least partially, for instance swiftfinancial.com, getbraintree.com, paypal.mobi, pp-c3.com and py.pl.

These mail servers are commonly used alongside aspmx.l.google.com and alt1.aspmx.l.google.com.

Host names with one IP number:

mx1.paypalcorp.com points to 173.224.165.17

mx2.paypalcorp.com points to 173.224.161.141

dbq