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IANA LogoLearn more about the NTIA's plans to transition out of IANA stewardship

The Internet Assigned Numbers Authority (IANA) is responsible for the global coordination of the DNS Root, IP addressing, and other Internet protocol resources. It is a set of functions that is currently contracted out by the National Telecommunications and Information Administration (NTIA), an agency in the U.S. Department of Commerce. The IANA function is currently carried out by ICANN.

With regard to Internet number resources, IANA's role is to allocate IP addresses and AS Numbers from the pools of unallocated resources to the Regional Internet Registries (RIRs) according to their needs, and to document protocol assignments made by the IETF. When an RIR requires more IP addresses for allocation or assignment within its region, IANA makes an additional allocation to the RIR.

IANA does not make allocations directly to ISPs or end users except in specific circumstances, such as allocations of multicast addresses or other protocol-specific needs.

Global Policy Development

The policies under which the IANA role is carried out are referred to as Global Addressing Policies, and must be agreed to by all of the five RIR communities. Any new policy proposal must go through the Policy Development Process in each RIR and be ratified by each community, and this process will then be reviewed by the ASO Address Council (ASO AC) before the new global policy is adopted.

More information:



Significant Announcement 3 February – Watch it live!

On Thursday, 3 February 2011, at 9:30 AM Eastern Standard Time (EST) [14:30 UTC /GMT], the Number Resource Organization (NRO), along with the Internet Corporation for Assigned Names and Numbers, the Internet Society (ISOC) and the Internet Architecture Board (IAB) will be holding a ceremony and press conference to make a significant announcement and to discuss the global transition to the next generation of Internet addresses.

RIPE NCC Receives Final /8 of IPv4 Address Space from IANA

In accordance with ripe-436, "Global Policy for the Allocation of the Remaining IPv4 Address Space", the Internet Assigned Numbers Authority (IANA) has today allocated the final five /8 blocks of IPv4 address space to the five Regional Internet Registries (RIRs).

IANA Allocates Two /8s of IPv4 Space to APNIC
Global Policy for Autonomous System Numbers
IANA Introduces AAAA Record For K-root
Regional Internet Registries Statement on the New IANA

Regional Internet Registries Statement on the New IANA

RIPE NCC Statement on IANA

RIPE NCC Statement

Considerations for the Establishment of the 'New IANA'

Considerations for the Establishment of the 'New IANA'

The Address Council of the New IANA

The Address Council of the New IANA