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IANA

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The Internet Assigned Numbers Authority (IANA) is responsible for the global coordination of the DNS Root, IP addressing, and other Internet protocol resources. Following the IANA Stewardship Transition in 2016, the IANA function is carried out by Public Technical Identifiers (PTI), a purpose-built organisation wholly owned 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. The five Regional Internet Registries have a Service Level Agreement with ICANN regarding provision of those IANA functions relating to Internet number resources (IP addresses and AS Numbers).

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.

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IANA News

RIPE NCC Receives /22 from IANA's Recovered Pool

On 4 September 2018, the RIPE NCC and the other Regional Internet Registries (RIRs) were each allocated the equivalent of a /22 of IPv4 address space from the Internet Assigned Numbers Authority (IANA).

RIPE NCC Receives /21 from IANA's Recovered Pool

On 1 March 2018, the RIPE NCC and other Regional Internet Registries (RIRs) were each allocated the equivalent of a /21 of IPv4 address space from the Internet Assigned Numbers Authority (IANA).

RIPE NCC Receives /20 from IANA's Recovered Pool

On 1 September 2017, the RIPE NCC and the other Regional Internet Registries (RIRs) were each allocated the equivalent of a /20 of IPv4 address space from the Internet Assigned Numbers Authority (IANA).

RIPE NCC Receives /19 from IANA's Recovered Pool

On 1 March 2017, the RIPE NCC and other Regional Internet Registries (RIRs) were each allocated the equivalent of a /19 of IPv4 address space from the Internet Assigned Numbers Authority (IANA).

IANA Stewardship Transition Completed

On 1 October 2016, the IANA functions contract that the United States Government had with ICANN was allowed to expire. This represents the final step in the community-led IANA stewardship transition process that began in 2014. Oversight of IANA is now the responsibility of the Names, Numbers and Protocol Parameters communities that rely on its services.

RIPE NCC Receives /18 from IANA’s Recovered Pool

On 1 September 2016, the RIPE NCC and other Regional Internet Registries (RIRs) were each allocated the equivalent of a /18 of IPv4 address space from the Internet Assigned Numbers Authority (IANA).

RIPE NCC Receives /15 from IANA's Recovered Pool

Yesterday, on 1 March 2016, the RIPE NCC and other Regional Internet Registries (RIRs) were each allocated the equivalent of a /15 of IPv4 address space from the Internet Assigned Numbers Authority (IANA). The RIPE NCC received the IPv4 address ranges 45.65.64.0/18, 147.78.0.0/16, 192.144.0.0/18 and 192.145.0.0/17. We are currently adding these to our available pool.

ICANN 50: Talking IANA and Accountability

More than 3,000 people gathered in London last week to participate in the largest ever ICANN meeting. Some of the key issues discussed included the evolution of IANA stewardship arrangements and ICANN's accountability to its many stakeholders.

Legacy IPv4 Address Space Returned to IANA

On 22 April 2014, the RIPE NCC handed over 5,376 returned legacy IPv4 addresses to IANA. This is the second time the RIPE NCC has returned legacy IPv4 addresses to IANA. For more information, please see the original news item and related documents.

Update on the IANA Transition

The RIPE NCC has published a section on its website that provides background information on the IANA functions, the role of stewardship of IANA and the RIPE NCC’s relationship to IANA.