.ARPA Domain Domains Protocols Numbers News --> About
.ARPA Zone Management
The .arpa domain is the “Address and Routing Parameter Area” domain and is designated to be used exclusively for
Internet-infrastructure purposes. We administer the domain in cooperation with the Internet technical
community through the guidance of the
Internet Architecture Board
For the management guidelines and operational
requirements of the .arpa domain, see
RFC 3172
. The .arpa domain currently
includes the following
second-level domains:
Domain
Usage / Reference
6tisch.arpa
For IPv6 over the Time-Slotted Channel Hopping mode of IEEE 802.15.4
RFC 9031
arpa
Reserved exclusively to support operationally-critical infrastructural identifier spaces as advised by the Internet Architecture Board
as112.arpa
For sinking DNS traffic for reverse IP address lookups and other
applications
RFC 7535
e164.arpa
For mapping E.164 numbers to Internet URIs
RFC 6116
eap-noob.arpa
For the Nimble Out-Of-Band authentication method of the Extensible Authentication Protocol framework
RFC 9140
home.arpa
For non-unique use in residential home networks
RFC 8375
in-addr-servers.arpa
For hosting authoritative name servers for the in-addr.arpa domain
RFC 5855
in-addr.arpa
For mapping IPv4 addresses to Internet domain names
RFC 1035
ip6-servers.arpa
For hosting authoritative name servers for the ip6.arpa domain
ip6.arpa
For mapping IPv6 addresses to Internet domain names
RFC 3152
ipv4only.arpa
For detecting the presence of DNS64 and for learning the IPv6 prefix used for protocol translation
RFC 7050
iris.arpa
For locating Internet Registry Information Services
RFC 4698
ns.arpa
For hosting authoritative name servers for the .arpa domain
RFC 9120
resolver.arpa
For discovery of designated DNS resolvers
RFC 9462
uri.arpa
For resolving Uniform Resource Identifiers according to the Dynamic Delegation Discovery System
RFC 3405
RFC 8958
urn.arpa
For resolving Uniform Resource Names according to the Dynamic Delegation Discovery System
Maintain
Changes to the .arpa zone must be
coordinated manually with us
Domain Names
Overview
Root Zone Management
Root Database
Hint and Zone Files
Change Requests
Instructions & Guides
Root Servers
.INT Registry
Register/modify an .INT domain
Eligibility
.ARPA Registry
IDN Practices Repository
Tables
Submit a table
Root Key Signing Key (DNSSEC)
Trusts Anchors and Keys
Key Signing Ceremonies
Policies & Procedures
Community Representatives
Project Archive
Reserved Domains
Domain Names
Root Zone Registry
IDN Repository
Number Resources
Abuse Information
Protocol Registries
Time Zone Database
About Us
Performance
Reports
Reviews
Excellence
Contact Us
The IANA functions coordinate the Internet’s globally unique identifiers, and
are provided by
Public Technical Identifiers
, an affiliate of
ICANN
Privacy Policy
Terms of Service