gtlds
HomeTLDs.arpa
DelegatedIANA root zone

.arpa

Infrastructure top-level domain

A source-linked reference record for .arpa, combining IANA delegation data with registry metadata.

Registry website View IANA record
RegistryInternet Architecture Board (IAB)
IANA typeInfrastructure
Registered1985-01-01
DNSSECNot determined
Overview

About .arpa

IANA

.arpa is listed by IANA as a infrastructure top-level domain. The sponsoring organisation shown in the IANA delegation record is Internet Architecture Board (IAB).

Policy and eligibility are deliberately not inferred from the string name. Registration rules should be taken from the registry and its official documentation.

Infrastructure Delegated
Sponsoring organisation
Internet Architecture Board (IAB)
RDAP
Not published
WHOIS
whois.iana.org
Registration date
1985-01-01
IANA last update
2023-11-27
Technical information

DNS and protocol details

Root-level delegation and protocol endpoints surfaced without hiding the source.

Authoritative nameservers

Published in the IANA delegation record.

a.ns.arpa198.41.0.4 · 2001:503:ba3e:0:0:0:2:30
b.ns.arpa170.247.170.2 · 2801:1b8:10:0:0:0:0:b
c.ns.arpa192.33.4.12 · 2001:500:2:0:0:0:0:c
d.ns.arpa199.7.91.13 · 2001:500:2d:0:0:0:0:d
e.ns.arpa192.203.230.10 · 2001:500:a8:0:0:0:0:e
f.ns.arpa192.5.5.241 · 2001:500:2f:0:0:0:0:f
g.ns.arpa192.112.36.4 · 2001:500:12:0:0:0:0:d0d
h.ns.arpa198.97.190.53 · 2001:500:1:0:0:0:0:53
i.ns.arpa192.36.148.17 · 2001:7fe:0:0:0:0:0:53
k.ns.arpa193.0.14.129 · 2001:7fd:0:0:0:0:0:1
l.ns.arpa199.7.83.42 · 2001:500:9f:0:0:0:0:42
m.ns.arpa202.12.27.33 · 2001:dc3:0:0:0:0:0:35
Delegation history

Record timeline

Only milestones that can be tied directly to official records are shown.

  1. IANA registration date

    Registration date shown in the IANA delegation record.

  2. IANA record last updated

    Latest update date displayed by the IANA delegation record.

Sources

Official records

This page keeps operational facts attached to their original source.

IANADelegation record IANA / InterNICAuthoritative root zone RegistryRegistration services
Explore

Look up another TLD

Search by label, operator, type, or IDN.