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ITU-T and ICANN to co-host workshop on .int TLD

Reaffirming their respective responsibilities, ICANN and the ITU-T look forward to co-hosting the upcoming workshop to develop recommendations on the management of the .int TLD. The workshop will be held in Geneva on 15-16 September.

ICANN is responsible for coordinating the assignment of the global Internet’s unique identifiers, including Internet domain names, IP address numbers, and protocol parameter and port numbers. In addition, ICANN oversees the operation of the Internet's root server system. As part of ICANN’s role through the IANA function is in the coordination of the domain name system, ICANN oversees the administration of the .int TLD.

The ITU-T, with its mission to ensure an efficient and on-time production of high quality standards covering all fields of telecommunications, is hosting the workshop pursuant to the ITU Resolution 102, through which the ITU is to work with appropriate bodies to develop a recommendation to clarify the management of the domain .int.

ICANN will contribute to this workshop through its experiences in the administration of the .int domain.

ICANN and the ITU look forward to a fruitful discussion, and any outcomes that may further benefit the ongoing successful management of the .int TLD.


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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""icann.org"" is not an IDN."