Internet Corporation for Assigned Names and Numbers

12025 Waterfront Drive, Suite 300 Los Angeles, USA

The Internet Corporation for Assigned Names and Numbers (ICANN) is a US-based not-for-profit public-benefit corporation whose role is to coordinate, at the overall level, the global Internet's systems of unique identifiers, and to ensure the stable and secure operation of these systems. ICANN's main responsibiliy is to coordinate the allocation and assignment of the three sets of unique identifiers for the Internet (also known as 'critical Internet resources': domain names, Internet protocol (IP) addresses and autonomous system numbers, and protocol port and parameter numbers), as well as to facilitate the coordination of the operation and evolution of the Domain Name System (DNS) root name server system. 

Until September 2016, ICANN was mandated by the United States Department of Commerce (DoC) to perform the IANA (Internet Assigned Numbers Authority) functions, including globally alocating the IP addresses and other numbering resources to the Regional Internet Registers (RIRs), introducing changes to the main DNS root zone file (the global Internet 'address book’), and managing the .INT top-level domain. Starting October 2016, these functions are performed by ICANN's affiliate Public Technical Identifiers (PTI), following the transition of the IANA functions stewardship from the US government to the global multistakeholder community.  

ICANN also has a policy-making function, in that it defines policies for how the 'names and numbers' of the Internet should run. The work moves forward in a style described as the 'bottom-up, consensus-driven, multistakeholder model', through the various supporting organisations and advisory committee that are part of ICANN's structure.





Other Instruments



IDN Infographic: Access Domain Names in Your Language (2015)


Middle East and Adjoining Countries DNS Study (2016)
Root Zone KSK Rollover Plan (2016)
An Analysis of new GTLD Universal Acceptance in the Web Environment (2015)

GIP event reports

Keynote Speech at EuroDIG 2017 – Göran Marby, ICANN (2017)
ICANN58: GNSO Registration Directory Services (RDS) Policy Development Process Working Group Meeting (2017)
ICANN58: Joint Meeting ICANN Board and GAC (2017)
ICANN58: Joint Meeting ICANN Board & Non-Commercial Stakeholders Group (2017)
ICANN58: Joint Meeting ICANN Board & Commercial Stakeholders Group (2017)
ICANN58: Joint Meeting GAC and ALAC (2017)
ICANN58: GNSO-GAC Facilitated Dialogue on IGO & Red Cross Protections (Session 2) (2017)
ICANN58: GAC Discussions on New Generic Top-Level Domains (2017)
ICANN58: GAC Discussions on Issues Related to ICANN Accountability and New ICANN Bylaws (2017)
ICANN58: New gTLD Auction Proceeds Cross Community Working Group Meeting (2017)
ICANN58: Moving Towards a Data-Driven ICANN (Cross-Community Session) (2017)
ICANN58: ICANN GDD New gTLD Program Reviews (2017)
ICANN58: Public Forum 1 & 2 (2017)
ICANN58: Joint Meeting ICANN Board & Customer Standing Committee (2017)
ICANN58: Internet Governance Public Session (2017)
ICANN58: Joint Meeting GAC and ccNSO (2017)
ICANN58: GNSO New gTLD Subsequent Procedures Policy Development Process Working Group Meeting (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)
CCWG-Accountability Supplemental Final Proposal on Work Stream 1 Recommendations (ICANN Accountability proposal) (2016)
The IANA Functions: An Introduction to the Internet Assigned Numbers Authority (IANA) Functions (2015)
Root Zone Administrator Proposal Related to the IANA Functions Stewardship Transition (2015)
Beginner’s Guide to Internet Protocol (IP) addresses (2011)
Beginner’s Guide to Domain Names (2010)
New gTLD Program Statistics

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