arpa - dns.ninja

`arpa`

DNSSEC	⚠️ Not signed
NS	`a.root-servers.net` ⭐
		A	2001:503:ba3e::2:30^{🇺🇸 VERISIGN-AS2001:503:ba3e::/48 Verisign Route}
			PTR	`a.root-servers.net`
		A	198.41.0.4^{🇺🇸 VERISIGN-AS198.41.0.0/24 Verisign Route}
			PTR	`a.root-servers.net`
NS	`a.ns.arpa` ⚠️ Not in parent delegation
		A	2001:503:ba3e::2:30^{🇺🇸 VERISIGN-AS2001:503:ba3e::/48 Verisign Route}
			PTR	`a.root-servers.net`
		A	198.41.0.4^{🇺🇸 VERISIGN-AS198.41.0.0/24 Verisign Route}
			PTR	`a.root-servers.net`
NS	`b.ns.arpa` ⚠️ Not in parent delegation
		A	2801:1b8:10::b^{🇺🇾 B-ROOT-SERVER-OPS2801:1b8:10::/48}
			PTR	`b.root-servers.net`
		A	170.247.170.2^{🇺🇾 B-ROOT-SERVER-OPS170.247.170.0/24}
			PTR	`b.root-servers.net`
NS	`c.ns.arpa` ⚠️ Not in parent delegation
		A	2001:500:2::c^{🇺🇸 AS21492001:500:2::/48 Cogent Communications IPv6 Micro Allocation}
			PTR	`c.root-servers.net`
		A	192.33.4.12^{🇺🇸 AS2149192.33.4.0/24}
			PTR	`c.root-servers.net`
NS	`d.ns.arpa` ⚠️ Not in parent delegation
		A	2001:500:2d::d^{🇺🇸 MAX-GIGAPOP2001:500:2d::/48 University of Maryland}
			PTR	`d.root-servers.net`
		A	199.7.91.13^{🇺🇸 MAX-GIGAPOP199.7.91.0/24 University of Maryland}
			PTR	`d.root-servers.net`
NS	`e.ns.arpa` ⚠️ Not in parent delegation
		A	2001:500:a8::e^{🇺🇸 AS215562001:500:a8::/48 NASA Ames Research Center (NARC) - E-ROOT}
			PTR	`e.root-servers.net`
		A	192.203.230.10^{🇺🇸 AS21556192.203.230.0/24 NASA Integrated Services Network (NISN) - E-ROOT}
			PTR	`e.root-servers.net`
NS	`f.ns.arpa` ⚠️ Not in parent delegation
		A	2001:500:2f::f^{🇺🇸 ISC-F-ROOT2001:500:2f::/48 F-Root}
			PTR	`f.root-servers.net`
		A	192.5.5.241^{🇺🇸 ISC-F-ROOT192.5.5.0/24 F-Root}
			PTR	`f.root-servers.net`
NS	`g.ns.arpa` ⚠️ Not in parent delegation
		A	2001:500:12::d0d^{🇺🇸 AS59272001:500:12::/48 3990 E. Broad Street Columbus OH 43218 United States}
			PTR	`g.root-servers.net`
		A	192.112.36.4^{🇺🇸 AS5927192.112.36.0/24}
			PTR	`g.root-servers.net`
NS	`h.ns.arpa` ⚠️ Not in parent delegation
		A	2001:500:1::53^{🇺🇸 AS15082001:500:1::/48 U.S. Army Research Laboratory}
			PTR	`h.root-servers.net`
		A	198.97.190.53^{🇺🇸 AS1508198.97.190.0/24 GBI via EMIX}
			PTR	`h.root-servers.net`
NS	`i.ns.arpa` ⚠️ Not in parent delegation
		A	2001:7fe::53^{🇸🇪 I-ROOT2001:7fe::/33 Prefix reserved for i.root-servers.net., from sites. Assigned 20030916 $Id: route6_2001:7fe::-33,v 1.1 2010-06-10 08:08:52 nico Exp $}
			PTR	`i.root-servers.net`
		A	192.36.148.17^{🇸🇪 I-ROOT192.36.148.0/24 Prefix reserved for DNS root name server i.root-servers.net. $Id: route_192.36.148.0-24,v 1.2 2010-05-26 08:52:13 liman Exp $}
			PTR	`i.root-servers.net`
NS	`k.ns.arpa` ⚠️ Not in parent delegation
		A	2001:7fd::1^{🇳🇱 K-ROOT-SERVER2001:7fd::/48 K-ROOT Service Network V6}
			PTR	`k.root-servers.net`
		A	193.0.14.129^{🇳🇱 K-ROOT-SERVER193.0.14.0/24 K-ROOT Service Network}
			PTR	`k.root-servers.net`
NS	`l.ns.arpa` ⚠️ Not in parent delegation
		A	2001:500:9f::42^{🇺🇸 AS201442001:500:9f::/48 Interwire Internet Services Pvt Ltd}
			PTR	`l.root-servers.net`
		A	199.7.83.42^{🇺🇸 AS20144199.7.83.0/24 Interwire Internet Services Pvt Ltd}
			PTR	`l.root-servers.net`
NS	`m.ns.arpa` ⚠️ Not in parent delegation
		A	2001:dc3::35^{🇯🇵 M-ROOT2001:dc3::/32 WIDE Murai Lab Keio University 5322 Endo, Fujisawa-shi}
			PTR	`m.root-servers.net`
		A	202.12.27.33^{🇯🇵 M-ROOT202.12.27.0/24 WIDE Murai Lab Keio University 5322 Endo, Fujisawa-shi}
			PTR	`m.root-servers.net`
SOA	`a.root-servers.net`nstld@verisign-grs.com 2026-08-13 #1

`(root)`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.root-servers.net` ⭐ ⚠️ Not in parent delegation
	NS	`b.root-servers.net` ⚠️ Not in parent delegation
	NS	`c.root-servers.net` ⚠️ Not in parent delegation
	NS	`d.root-servers.net` ⚠️ Not in parent delegation
	NS	`e.root-servers.net` ⚠️ Not in parent delegation
	NS	`f.root-servers.net` ⚠️ Not in parent delegation
	NS	`g.root-servers.net` ⚠️ Not in parent delegation
	NS	`h.root-servers.net` ⚠️ Not in parent delegation
	NS	`i.root-servers.net` ⚠️ Not in parent delegation
	NS	`j.root-servers.net` ⚠️ Not in parent delegation
	NS	`k.root-servers.net` ⚠️ Not in parent delegation
	NS	`l.root-servers.net` ⚠️ Not in parent delegation
	NS	`m.root-servers.net` ⚠️ Not in parent delegation
	SOA	`a.root-servers.net`nstld@verisign-grs.com 2026-08-13 #1

Subdomains

home.arpa

service.arpa

in-addr.arpa

in-addr-servers.arpa

uri.arpa

urn.arpa

e164.arpa

as112.arpa

ip6-servers.arpa

ipv4only.arpa

iris.arpa

ip6.arpa

Same first word

arpa.piemonte.it

arpa.cz

arpa.cc

arpa.archi

arpa.com.es

arpa.ca

arpa.at

arpa.az

arpa.consulting

arpa.org

arpa.sardegna.it

arpa.org.uk

arpa.site

arpa.tm.fr

arpa.sicilia.it

arpa.emr.it

arpa.dev

arpa.org.ar

arpa.gr

arpa.dk

arpa.ee

arpa.com.ua

arpa.veneto.it

arpa.ph

arpa.me

arpa.net

arpa.vg

arpa.it

arpa.wtf

arpa.se

arpa.ru

arpa.si

arpa.sk

arpa.be

arpa.ch

arpa.hr

arpa.vda.it

arpa.tv

arpa.eu

arpa.im

arpa.org.az

arpa.puglia.it

arpa.no

arpa.com.ar

arpa.ws

arpa.marche.it

arpa.fi

arpa.fvg.it

arpa.li

arpa.es

arpa.mil

arpa

arpa.umbria.it

Similar names

aarp.net

aarp.com.mx

para.te.ua

paar.com.au

para.at

arap.cv

apra.com.co

aarp.ws

para.co.za

rapa.ws

paar.photography

rapa.ru

paar.me

rapa.lublin.pl

apar.org.br

apar.pl

raap.ie

apar.sk

apar.com.mx

apar.org

para.casa

para.it

para.solutions

paar.ru

arap.org

paar.io

arap.eu

rapa.jp

praa.net

paar.co.at

apar.me

para.pub

para.eu

aarp.org.br

raap.net

para.com

apra.com

para.co.kr

apar.sklep.pl

aarp.tv

apar.it

rapa.com

apar.at

aapr.com

paar.org

aarp.com.au

rapa.at

rapa.co

para.finance

apra.com.au

apra.digital

raap.info

rpaa.in

arap.net

apar.eu

para.ro

paar.ro

para.me

arap.gob.pa

raap.eu

aarp.us

para.pl

apra.de

paar.es

apra.net

para.hu

para.digital

para.site

para.to

rapa.net

arap.cg

paar.tv

paar.mx

paar.de

paar.co

arap.at

para.ms

aarp.it

raap.in

paar.edu.pl

apar.com.pt

apar.net

para.no

DNS History

24 records (13 active, 11 former)

●NSa.ns.arpa2026-02-14 → 2026-08-13 · 3 obs

○ 2022-01-11 14:14:00
● 2026-02-14 17:17:38
● 2026-08-13 22:26:26

●NSa.root-servers.net2015-09-04 → 2026-08-13 · 2 obs

● 2015-09-04 04:36:34
● 2026-08-13 22:26:26

●NSb.ns.arpa2026-02-14 → 2026-08-13 · 3 obs

○ 2022-01-11 14:14:00
● 2026-02-14 17:17:38
● 2026-08-13 22:26:26

○NSb.root-servers.net2015-09-04 → 2026-05-27 · 12 obs

● 2015-09-04 04:36:34
● 2022-01-11 14:14:00
○ 2026-02-14 17:17:38
○ 2026-04-16 11:21:26
● 2026-04-16 11:52:32
● 2026-04-16 12:23:02
○ 2026-04-16 12:53:16
○ 2026-05-27 00:00:22
● 2026-05-27 00:30:44
● 2026-05-27 01:00:54
○ 2026-05-27 01:31:24
○ 2026-08-13 22:26:26

●NSc.ns.arpa2026-02-14 → 2026-08-13 · 3 obs

○ 2022-01-11 14:14:00
● 2026-02-14 17:17:38
● 2026-08-13 22:26:26

○NSc.root-servers.net2015-09-04 → 2026-05-27 · 12 obs

●NSd.ns.arpa2026-02-14 → 2026-08-13 · 3 obs

○ 2022-01-11 14:14:00
● 2026-02-14 17:17:38
● 2026-08-13 22:26:26

○NSd.root-servers.net2015-09-04 → 2026-05-27 · 12 obs

●NSe.ns.arpa2026-02-14 → 2026-08-13 · 3 obs

○ 2022-01-11 14:14:00
● 2026-02-14 17:17:38
● 2026-08-13 22:26:26

○NSe.root-servers.net2015-09-04 → 2026-05-27 · 12 obs

●NSf.ns.arpa2026-02-14 → 2026-08-13 · 3 obs

○ 2022-01-11 14:14:00
● 2026-02-14 17:17:38
● 2026-08-13 22:26:26

○NSf.root-servers.net2015-09-04 → 2026-05-27 · 12 obs

●NSg.ns.arpa2026-02-14 → 2026-08-13 · 3 obs

○ 2022-01-11 14:14:00
● 2026-02-14 17:17:38
● 2026-08-13 22:26:26

○NSg.root-servers.net2015-09-04 → 2026-05-27 · 12 obs

●NSh.ns.arpa2026-02-14 → 2026-08-13 · 3 obs

○ 2022-01-11 14:14:00
● 2026-02-14 17:17:38
● 2026-08-13 22:26:26

○NSh.root-servers.net2015-09-04 → 2026-05-27 · 12 obs

●NSi.ns.arpa2026-02-14 → 2026-08-13 · 3 obs

○ 2022-01-11 14:14:00
● 2026-02-14 17:17:38
● 2026-08-13 22:26:26

○NSi.root-servers.net2015-09-04 → 2026-05-27 · 12 obs

●NSk.ns.arpa2026-02-14 → 2026-08-13 · 3 obs

○ 2022-01-11 14:14:00
● 2026-02-14 17:17:38
● 2026-08-13 22:26:26

○NSk.root-servers.net2015-09-04 → 2026-05-27 · 12 obs

●NSl.ns.arpa2026-02-14 → 2026-08-13 · 3 obs

○ 2022-01-11 14:14:00
● 2026-02-14 17:17:38
● 2026-08-13 22:26:26

○NSl.root-servers.net2015-09-04 → 2026-05-27 · 12 obs

●NSm.ns.arpa2026-02-14 → 2026-08-13 · 3 obs

○ 2022-01-11 14:14:00
● 2026-02-14 17:17:38
● 2026-08-13 22:26:26

○NSm.root-servers.net2015-09-04 → 2026-05-27 · 12 obs

🔍 DNS Trace

✅ Authoritative Response

Server:198.97.190.53

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 320ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	12	`a.ns.arpa, g.ns.arpa...`
SOA	1	`a.root-servers.net nstld.verisign-grs.co`

Analysis

Hierarchy

The host names home.arpa, service.arpa, in-addr.arpa, in-addr-servers.arpa and uri.arpa — among a few others — fall under the parent domain arpa.

Name Servers

arpa carries NS records listing 13 name servers — a.ns.arpa, b.ns.arpa, c.ns.arpa and 10 others.

At least some of arpa's name servers are shared with other domains, for example servera.kz, 47izfmyt5a4pocrpru73u89zgpxboye.z.cjjd14.com, xk5sq9.z.cjjd14.com and two more.

These name servers tend to co-occur with a.root-servers.net, d.ns.arpa, e.ns.arpa and 7 other name servers in the same DNS delegations.

Host names that have two IP addresses:

The A records for a.ns.arpa return 198.41.0.4 and 2001:503:ba3e::2:30.

The A records for b.ns.arpa return 170.247.170.2 and 2801:1b8:10::b.

The A records for c.ns.arpa return 192.33.4.12 and 2001:500:2::c.

The A records for d.ns.arpa return 199.7.91.13 and 2001:500:2d::d.

The A records for e.ns.arpa return 192.203.230.10 and 2001:500:a8::e.

The A records for f.ns.arpa return 192.5.5.241 and 2001:500:2f::f.

The A records for g.ns.arpa return 192.112.36.4 and 2001:500:12::d0d.

The A records for h.ns.arpa return 198.97.190.53 and 2001:500:1::53.

The A records for i.ns.arpa return 192.36.148.17 and 2001:7fe::53.

The A records for k.ns.arpa return 193.0.14.129 and 2001:7fd::1.

The A records for l.ns.arpa return 199.7.83.42 and 2001:500:9f::42.

The A records for m.ns.arpa return 202.12.27.33 and 2001:dc3::35.

The A records for a.root-servers.net return 198.41.0.4 and 2001:503:ba3e::2:30.

a.ns.arpa and a.root-servers.net each have 2001:503:ba3e::2:30 IP addresses.

a.ns.arpa and a.root-servers.net each have 198.41.0.4 IP addresses.