MXLIST.NET - 231.128.in-addr.arpa

Search for IP or hostnames:

231.128.in-addr.arpa checked at 2025-10-18T06:25:40.756Z 7388ms 54/54/54 100% R:24

`231.128.in-addr.arpa`

NS	`ns2.nih.gov`
		A	2607:f220:418:4101::80e7:401 ^{🇺🇸 AS3527-NIH}
			PTR	`ns2.nih.gov`
		A	128.231.64.1^{🇺🇸 AS3527-NIH}
			PTR	`ns2.nih.gov`
NS	`ns3.nih.gov`
		A	2607:f220:402:1801::a570:4e6 ^{🇺🇸 AS30387}
			PTR	`ns3.nih.gov`
		A	165.112.4.230^{🇺🇸 AS30387}
			PTR	`ns3.nih.gov`
NS	`ns.nih.gov`
		A	2607:f220:404:101::80e7:80fb ^{🇺🇸 AS3527-NIH}
			PTR	`ns.nih.gov`
		A	128.231.128.251^{🇺🇸 AS3527-NIH}
			PTR	`ns.nih.gov`

`128.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`

Starts with same word

231.ca

231.de

231.in-addr.arpa

231.email

231.at

231.it

231.tv

231.cz

231.ltd

231.chat

231.run

231.ru

231.io

231.nl

231.cc

231.us

231.com

231.pl

231.la

231.me

Starts similarily

123.bg

231.pl

123.tax

312.co.kr

312.it

321.biz

312.kg

132.one

231.la

132.pl

123.chat

123.ca

132.cz

321.blue

132.me

321.bio

213.jp

231.me

123.pt

312.network

312.tel

321.cz

123.lv

123.be

123.no

123.com.vn

123.kz

123.cc

321.lu

321.ink

231.ca

321.jp

123.reisen

123.pl

132.be

123.cr

321.bike

132.la

123.gov.bn

123.plus

123.ma

312.myftp.org

213.com

123.design

213.in-addr.arpa

213.net

123.co.th

123.photos

321.si

132.cc

213.tel

123.co.id

213.design

123.cat

321.cn

132.online

213.vg

123.co

312.one

123.marketing

321.com

123.porn

312.tv

123.jp

312.com

321.bg

312.at

321.co.nz

123.group

123.church

123.do

213.pl

123.tw

123.net.vn

213.run

213.info

123.rs

312.biz

123.org

321.com.cn

321.beauty

213.org

312.com.au

123.lc

132.jp

231.de

123.uk.com

123.com.my

321.hu

312.ca

132.in-addr.arpa

132.com

231.in-addr.arpa

321.by

123.com.cm

123.com.au

123.zip

231.email

123.vip

321.tv

AI analysis

231.128.in-addr.arpa is delegated to three name servers ns2.nih.gov, ns3.nih.gov and ns.nih.gov.

231.128.in-addr.arpa at least partially shares name servers with other domains, for instance pubmedcentral.nih.gov, nnlm.gov, ncrr.nih.gov, ors.od.nih.gov and od.nih.gov.

these name servers are often used together with lhcns1.nlm.nih.gov, lhcns2.nlm.nih.gov, dns1-ncbi.ncbi.nlm.nih.gov and dns2-ncbi.ncbi.nlm.nih.gov.

Host names with two IP numbers:

ns2.nih.gov points to: 2607:f220:418:4101::80e7:401 and 128.231.64.1.

ns3.nih.gov points to: 2607:f220:402:1801::a570:4e6 and 165.112.4.230.

ns.nih.gov points to: 2607:f220:404:101::80e7:80fb and 128.231.128.251.

dbq