As a result of the successful IANA Stewardship transition [1] in 2016, the IANA Numbering Services are today being managed through an SLA between ICANN and the five RIRs.

IANA Numbering Services Review Committee

The Internet Number Community, produced a proposal [2] on the IANA Stewardship transition, outlining the concept of such an SLA [3]. The proposal also called for the establishment of an IANA Numbering Services Review Committee (IANA RC) [4] to advice and assist the RIRs in the review of the IANA Numbering Services. The IANA RC was established in 2016 and is composed of representatives from each RIR region. 

IANA Numbering Services Performance

• The IANA services are today provided by Public Technical Identifiers (PTI) [5] which as of March 2017, publishes monthly performance reports on the IANA Numbering Services:
  https://www.iana.org/performance/numbers
• Based on these monthly performance reports, the five RIRs have produced an 2017 IANA Performance Matrix Summary Report (for the period of March - December 2017): https://www.nro.net/wp-content/uploads/IANA-RC-Annual-Summary-Matrix.pdf

 The IANA RC report

The IANA RC will publish an annual report as advice to the NRO EC with its evaluation of the IANA Numbering services. The report will be based on the IANA Performance Matrix Summary Report, as well as any input gathered on the performance from the global number community.

 30-day public comment period

As part of the open, transparent, and bottom-up spirit of the number community, the IANA RC is launching a public comment period of 30 days, seeking any comments or input from the community on the IANA numbering services performance. The IANA RC encourages all members of the Internet number community to review the public IANA Performance Matrix Summary Report. Comments on the IANA service performance should be sent to:<iana-performance@nro.net>. The public comment period ends on Sunday 11 March at 23:59 UTC.

Next steps

All public comments will be published on the IANA RC website, and will be considered as input to the final report by the IANA. At the end of the 30-day public comment period, the IANA RC will meet and evaluate all input to the final report. The IANA RC report will be published on the IANA RC website:
https://www.nro.net/iana-numbering-services-review-committee/.

References:

1. IANA Stewardship Transition Archive - https://www.nro.net/iana-oversight/archive/
2. Number Community Proposal - https://www.nro.net/wp-content/uploads/ICG-RFP-Number-Resource-Proposal.pdf
3. The SLA for the IANA Numbering Services - https://www.nro.net/updated-5-2-and-signature-version-of-the-sla-for-the-iana-numbering-services/
4. IANA Numbering Services Review Committee - https://www.nro.net/iana-numbering-services-review-committee/
5. Public Technical Identifiers (PTI) - https://pti.icann.org

Further reading:

• Consolidated RIR IANA Stewardship Proposal Team (CRISP Team) - https://www.nro.net/nro-and-internet-governance/iana-oversight/consolidated-rir-iana-stewardship-proposal-team-crisp-team/IANA Stewardship Transition
• Coordination Group (ICG) - https://www.ianacg.org
• Proposal to Transition the Stewardship of the Internet Assigned Numbers Authority (IANA) Functions - https://www.ianacg.org/icg-files/documents/IANA-transition-proposal-final.pdf