Number Resource Performance
December 2025Resource Allocation Performance
These performance targets relate to the allocation of unicast IP addresses and AS numbers to Regional Internet Registries, in conformance with global allocation policies. Individual requests are expanded upon later in the report.
| Requests acknowledged on time (100%) | |
| Responded on time (100%) | |
| Implemented on time (100%) | |
| Implemented accurately (100%) |
Reverse DNS Performance
These performance targets relate to the provision of reverse domain resolution (i.e. using in-addr.arpa and ip6.arpa). Regional Internet Registries submit modifications to DNS records for their respective number resource allocations through an API, and IANA is responsible for propagating those amendments in the DNS.
| API Acknowledgment Time (0.25s) | |
| DNS Propagation Time (5.02m) | |
| API Server Availability (100%) | |
| DNS Distribution Availability (100%) | |
| — | DNS Availability (100%) |
Individual Allocation Requests
No Regional Internet Registry requests were performed in December 2025.
Reverse DNS Performance Details
| API Requests | Expected | Actual |
|---|---|---|
| API Acknowledgment Time | ≤ 300s (99.00%) | 0.25s |
| Acknowledgment Count | 13 | |
| Mean Time | 0.07s | |
| Shortest Time | 0.05s | |
| Longest Time | 0.26s | |
| Median Time | 0.05s | |
| PStDev Time | 0.06s | |
| DNS Propagation Time | ≤ 10m (99.00%) | 5.02m |
| Implementation Count | 13 | |
| Mean Time | 4.09m | |
| Shortest Time | 0.45m | |
| Longest Time | 5.03m | |
| Median Time | 4.34m | |
| PStDev Time | 1.13m | |
| Server Availability | Expected | Actual |
| API Server | ≥ 99.00% | 100% |
| DNS Distribution | ≥ 99.00% | 100% |
| gsi1.dns Availability | 100% | |
| gsi2.dns Availability | 100% | |
| gsi3.dns Availability | 100% | |
| gsi4.dns Availability | 100% | |
| DNS Server | 100% | |
| in-addr.arpa over IPv4 | 100% | |
| in-addr.arpa over IPv6 | 100% | |
| ip6.arpa over IPv4 | 100% | |
| ip6.arpa over IPv6 | 100% |