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ICANN Acronyms and Terms

ICANN has hundreds of acronyms and terms, which can be confusing. We created this multilingual tool to help explain what these terms mean and facilitate your work within the ICANN community. Search for terms by name or acronym using the search bar, or search by letter. All acronyms and terms are available in Arabic, Chinese, French, Russian, and Spanish.

Do you have feedback on the definitions or the terms? Send us an email to: acronymsandterms@icann.org

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  • Internet Assigned Numbers Authority functionsIANA functions

    Functions involving the coordination of the unique identifiers and codes that keep the Internet running smoothly. IANA functions include management of Internet number resources, management of the Domain Name System root zone, and maintenance of the authoritative registries for many of the codes and numbers used in the Internet protocols.

    The IANA functions are performed by Public Technical Identifiers, an affiliate of ICANN.