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IANA Naming Function Review Team Completes Rules of Engagement, Scope of Work, and Work Plan

LOS ANGELES – 31 March 2020 – Today, the Internet Assigned Numbers Authority (IANA) Naming Function Review Team (IFRT) has announced that it has completed the Rules of Engagement, Scope of Work, and Work Plan for the IANA Naming Function Review (IFR).

The IFR is one of the new accountability mechanisms created as part of the IANA stewardship transition to ensure that ICANN via its affiliate Public Technical Identifiers (PTI) meets the needs and expectations of its naming customers.

The IFRT will conduct the review in accordance with the scope specified in Article 18 of the ICANN Bylaws, which centers around a review and evaluation of PTI's performance of the IANA naming function against the contractual requirements in the IANA Naming Function Contract and the IANA Naming Function SOW.

What are the next steps for the review team?

The review team has determined an initial methodology for conducting detailed fact-finding. An outreach plan to get input from the direct customers of the IANA Naming Function Process, as well as the broader ICANN community, is under development.

How can people get involved in the IANA Naming Function Review?

Visit the IFR workspace the latest news, updates, and participation opportunities. Community members can:

  • Become an IFR observer.
  • Share individual expertise regarding the IANA Naming Function.
  • Subscribe to the IFR mailing list for calendar invites, agendas, and "read only" access to mailing list exchanges.


ICANN's mission is to help ensure a stable, secure, and unified global Internet. To reach another person on the Internet, you need to type an address – a name or number – into your computer or other device. That address must be unique so computers know where to find each other. ICANN helps coordinate and support these unique identifiers across the world. ICANN was formed in 1998 as a not-for-profit public-benefit corporation with a community of participants from all over the world.

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Domain Name System
Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"". An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese. Many languages also use other types of digits than the European ""0-9"". The basic Latin alphabet together with the European-Arabic digits are, for the purpose of domain names, termed ""ASCII characters"" (ASCII = American Standard Code for Information Interchange). These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs. The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-"". The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS. The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" (separated by ""dots""). The ASCII form of an IDN label is termed an ""A-label"". All operations defined in the DNS protocol use A-labels exclusively. The Unicode form, which a user expects to be displayed, is termed a ""U-label"". The difference may be illustrated with the Hindi word for ""test"" — परीका — appearing here as a U-label would (in the Devanagari script). A special form of ""ASCII compatible encoding"" (abbreviated ACE) is applied to this to produce the corresponding A-label: xn--11b5bs1di. A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"". Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as"""" is not an IDN."