Welcome to ARIN

Established in December 1997, the American Registry for Internet Numbers (ARIN) is a nonprofit, member-based organization that supports the operation and growth of the Internet.

ARIN accomplishes this by carrying out its core service, which is the management and distribution of Internet number resources such as Internet Protocol (IP) addresses and Autonomous System Numbers (ASNs). ARIN manages these resources within its service region, which is comprised of Canada, the United States, and many Caribbean and North Atlantic islands. ARIN also coordinates policy development by the community and advances the Internet through informational outreach. The following video provides an introduction to ARIN.

Organization Structure & Staff

ARIN is structured to operate as a service organization that is responsive to the needs of the public it serves. It is organized and driven by the users in the community and is thus able to keep in step with their requirements. The ARIN Board of Trustees and Advisory Council oversee and direct the President & CEO as well as the ARIN staff. A full staff list and organizational chart is available.

Our Region

ARIN’s geographical service area includes all of the countries in our region, which is comprised of Canada, the United States, and many Caribbean and North Atlantic islands.

ARIN Board of Trustees

The Board of Trustees maintains authority over the scope, mission, and, along with the President & CEO, strategic direction and fiscal oversight of ARIN. The President & CEO, along with ARIN staff, executes the strategic direction through the operational management of ARIN. The Board also has oversight authority of the nomination, appointment, and election of individuals to Board committees and similar roles.

Advisory Council

The Advisory Council serves in an advisory capacity to the Board of Trustees on Internet number resource policy and related matters. Adhering to the procedures in the Policy Development Process, the Advisory Council forwards consensus-based policy proposals to the Board for ratification.

NRO Number Council

The NRO Number Council advises the NRO Executive Council on proposed global number resource policies. Under the Memorandum of Understanding, the NRO NC performs the role of the Address Supporting Organization Address Council (ASO AC).


If you are passionate about helping the Internet grow, look no further than a career at ARIN! ARIN is always on the lookout for talented, motivated, and energetic individuals who enjoy working in a collaborative environment.