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Internet Corporation for Assigned Names and Numbers (ICANN)


The Internet Corporation for Assigned Names and Numbers (ICANN) is responsible for coordinating the Domain Name System (DNS), Internet number resources such as Internet Protocol (IP) addresses and Autonomous System Numbers (ASNs), space allocation, protocol identifier assignment, generic (gTLD) and country code (ccTLD) Top-Level Domain name system management, and root server system management functions. ICANN relies on  a bottom-up, consensus-driven, multi-stakeholder model to accomplish its work.

How Does ARIN Participate?

As a Regional Internet Registry, ARIN interacts with the Internet Assigned Numbers Authority (IANA), a department of ICANN that coordinates the global IP address and AS number space, and allocates these to RIRs. ARIN participates as an organization, staff members participate in various working groups, and on occasion, ARIN participates in forum as part or on behalf of the Number Resource Organization (NRO).

Who Can Join And How?

Participation is open to anyone interested in attending its meetings, held three times annually around the globe. There is no registration fee for these meetings, and opportunities for remote participation and a fellowship program are available. In addition, ICANN hosts many public active mailing lists and from time to time calls for public input on its operations.

Those with a strong interest in the mission and work of ICANN may be interested in joining one of ICANN's three supporting organizations or four advisory committees, as well as running for its Board of Directors.

Access to Materials

ICANN meetings are open to the public and most of the sessions are available via webcast. Presentations are archived on the website. Materials related to ICANN's operational activities are mande available to the public in a timely maner unless there is pressing reason for confidentiality. ICANN's Documentary Disclosure Information Policy is detailed on ICANN's website with links to available public documents.


ARIN has been an integral participant in the ICANN process, through its work on technical committees and by providing education and information as participants in workshops, as speakers and during open discussion forums. Representatives from the ARIN region, as members of the ICANN Address Supporting Organization (ASO), review and recommend global Internet number resource policy and elect two members to the ICANN Board of Directors. Once a year ARIN and the other four Regional Internet Registries (RIRs) contribute financially to ICANN through the NRO.

ICANN BAckground

ICANN was formed in 1998 as a nonprofit organization under a Memorandum of Understanding (MoU) with the U.S. Department of Commerce.


In addition to the California office shown below, ICANN has offices in Washington D.C.; Silicon Valley California; Sydney, Australia; and Brussels, Belgium. For additional contact information, please see the ICANN website.

4676 Admiralty Way, Suite 330
Marina del Rey, CA 90292-6601
Phone: +1 310 823 9358
FAX: +1 310 823 8649


ICANN uses a set of core values to guide its decisions and actions, first of which is preserving and enhancing the operational stability, reliability, security, and global interoperability of the Internet. ICANN employs an open and transparent policy development mechanism to promote well-informed decisions based on expert advice, thereby ensuring that those entities most affected can assist in the policy development process. ICANN seeks and supports broad, informed participation reflecting the functional, geographic, and cultural diversity of the Internet at all levels of policy development and decision-making.

While remaining rooted in the private sector, ICANN recognizes that governments and public authorities are responsible for public policy and duly takes into account governments' or public authorities' recommendations.


ICANN is not a membership organization.

Structure and Organization

ICANN works through a multi-stakeholder model, led by a Board of Directors elected or appointed from a number of supporting organizations, technical and advisory committees and at large through a nominating committee. The President and CEO directs a staff located around the world. A diagram of this multi-stakeholder model is available on the ICANN website.

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