RFC 9910 on Registration Data Access Protocol (RDAP) Regional Internet Registry (RIR) Search

A new Request for Comments is now available in online RFC libraries.

        RFC 9910

        Title:      Registration Data Access Protocol (RDAP) 
                    Regional Internet Registry (RIR) Search 
        Author:     T. Harrison,
                    J. Singh
        Status:     Standards Track
        Stream:     IETF
        Date:       January 2026
        Mailbox:    tomh@apnic.net,
                    jasdips@arin.net
        Pages:      26
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-regext-rdap-rir-search-19.txt

        URL:        https://www.rfc-editor.org/info/rfc9910

        DOI:        10.17487/RFC9910

The Registration Data Access Protocol (RDAP) is used by Regional
Internet Registries (RIRs) and Domain Name Registries (DNRs) to
provide access to their resource registration information.  The core
specifications for RDAP define basic search functionality, but there
are various search options related to IP addresses, IP prefixes, and
Autonomous System Numbers (ASNs), which are provided by RIRs via
their WHOIS services, but for which there is no corresponding RDAP
functionality.  This document extends RDAP to support those search
options.

This document is a product of the Registration Protocols Extensions Working Group of the IETF.

This is now a Proposed Standard.

STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the 
standardization state and status of this protocol.  Distribution of this 
memo is unlimited.

This announcement is sent to the IETF-Announce and rfc-dist lists.
To subscribe or unsubscribe, see
  https://www.ietf.org/mailman/listinfo/ietf-announce
  https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist

For searching the RFC series, see https://www.rfc-editor.org/search
For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk

Requests for special distribution should be addressed to either the
author of the RFC in question, or to rfc-editor@rfc-editor.org.  Unless
specifically noted otherwise on the RFC itself, all RFCs are for
unlimited distribution.

The RFC Editor Team