Internet Assigned Numbers Authority

Internet Assigned Numbers Authority 12025 Waterfront Drive, Suite 300 Los Angeles CA 90094 USA

The Internet Assigned Numbers Authority (IANA) is the entity responsible for coordinating some of the key elements that keep the Internet running smoothly. Whilst the Internet is renowned for being a worldwide network free from central coordination, there is a technical need for some key parts of the Internet to be globally coordinated, and this coordination role is undertaken by IANA.

Specifically, IANA: 

  • manages the root zone of the Domain Names System (DNS) Root Zone, through assigning the operators of generic top-level domains (gTLDs such as .com and .org) and country code top level domains (ccTLDs, such as .uk and .cn), and maintaining their technical and administrative details;
  • ensures management for and operates the .int and .arpa domains;
  • coordinates allocations from the global Internet Protocol (IP) and Autonomous System (AS) number spaces, such as those made to Regional Internet Registries; and
  • functions as central repository for protocol name and number registries used in many Internet protocols.

As of 1 October 2016, the IANA functions are provided by the Public Technical Identifiers (PTI), an affiliate of the Internet Corporation for Assigned Names and Numbers (ICANN).



Other Instruments


GIP event reports

ICANN58: Joint Meeting ICANN Board & Customer Standing Committee (2017)

Other resources

Proposal to Transition the Stewardship of the Internet Assigned Numbers Authority (IANA) Functions from the U.S. Commerce Department’s National Telecommunications and Information Administration (NTIA) to the Global Multistakeholder Community (2016)

The GIP Digital Watch observatory is provided by



and members of the GIP Steering Committee


GIP Digital Watch is operated by

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