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Domain Extension Guide

.ARPA Domain Registration & WHOIS

Analyze registry operators, character limits, IDN support status, and specific registration guidelines for .ARPA domains.

Extension Metadata

Min 2 Chr
Max 63 Chr
IDN NO
Category: infrastructure
Operator: Internet Assigned Numbers Authority (IANA)

Registration Eligibility

This extension is open to any individual or business globally without strict regulatory constraint policies.

Recently Queried Domains

nic.arpa Query in-addr.arpa Query

Overview & Registration Guidelines

The .ARPA domain extension is The .arpa domain (Address and Routing Parameter Area) is an infrastructure top-level domain (iTLD) used exclusively for internet-infrastructure purposes. Administered by IANA in cooperation with the IAB, it contains critical routing records including reverse DNS lookup zones (in-addr.arpa and ip6.arpa) and URI resolution databases. It requires a minimum label length of 2 characters and supports up to 63 characters. It does not support IDN characters, meaning only standard English characters are allowed. Registration is completely open and unrestricted globally to individuals and organizations.

To search for who owns a specific domain registered under this extension, you can perform a live query in our WHOIS portal above. The registry operator database will respond in real time with server details, domain status codes, registration/expiry dates, and name server arrays.

Frequently Asked Questions