Review finds IANA numbering services met performance targets in 2025

A review of core internet infrastructure services has found that numbering functions operated by the Internet Assigned Numbers Authority (IANA) performed as expected throughout 2025.

The findings were published on 30 March 2026 by the IANA Numbering Services Review Committee, a group established to assess whether these services meet agreed performance standards.

To understand the significance, IANA plays a central role in coordinating global internet resources. Among its responsibilities is managing the allocation of IP address blocks to Regional Internet Registries, which then distribute them to internet providers and organisations worldwide.

The review evaluates whether these services are delivered reliably and in line with a Service Level Agreement. This agreement sets measurable targets, such as how quickly requests are processed and whether allocations are accurate.

According to the report, IANA met its performance targets in nearly all areas during 2025. This includes timely responses to requests, correct allocation of number resources, and overall reliability of operations.

One exception was related to reverse DNS performance, which met agreed targets 80% of the time rather than fully meeting them. The report notes a temporary issue observed during June, when delays in DNS propagation were recorded.

The evaluation is based on technical data, internal performance reports, and input from the global internet community. A public consultation was held between February and March 2026, although no comments were submitted during that period.

Overall, the committee concluded that there were no significant issues affecting the delivery of numbering services and that IANA fulfilled its obligations under the agreement.

The review is part of a broader accountability framework introduced after the transition of oversight of IANA functions, ensuring that critical internet infrastructure continues to operate transparently and reliably.