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Overview

This NRO Extended Allocations and Assignment reports is a daily updated report of the distribution of Internet number resources.

The main NRO extended reports format is according to the following specification:

Inputs

The daily distribution reports are generated based on delegated extended RIR reports from each of the RIRs.

    APNIC   -> "https://ftp.apnic.net/stats/apnic/delegated-apnic-extended-latest",
    AFRINIC -> "https://ftp.afrinic.net/stats/afrinic/delegated-afrinic-extended-latest",
    ARIN    -> "https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-latest",
    LACNIC  -> "https://ftp.lacnic.net/pub/stats/lacnic/delegated-lacnic-extended-latest",
    RIPENCC -> "https://ftp.ripe.net/pub/stats/ripencc/delegated-ripencc-extended-latest",

Each RIRs has their own reports specification, but we rely on the facts that their records formats aligned with [1]./

In addition to that, the original allocation of resources to each RIR is also used:

    IANA    -> "https://ftp.apnic.net/pub/stats/iana/delegated-iana-latest",

Reports

Reports are generated daily and stored in:

An subdirectory named YYYYMMDD is generated daily under that ftp location. The latest subdirectory is a symbolic link for the latest generated daily data subdirectory.

The main file generated is: https://ftp.ripe.net/pub/stats/ripencc/nro-stats/latest/nro-delegated-stats Which is also available from: https://www.nro.net/about/rirs/statistics/

There are several files produced under each daily archive directory:

  • combined-stat, this report is an alias of the same final result, nro-delegated-stats, where we combine all the RIR statistics and IANA files.

  • merged-stat, this report contains the same data as above, except that adjacent resources that fit bit boundary, are merged into one row. This is different with the standard RIR-Statistic-Exchange format where they might be listed separagely.

  • overclaimed reports contains the list of records that is declared in RIR's statistics, but in IANA delegated stats is declared as ianapool. For example the following resources used to be declared by APNIC but was listed as ianapool on the IANA delegated stats, thus listed as overclaim.

    apnic|HK|asn|2772|1|20100720|assigned|A91EA623|e-stats

  • unclaimed reports contains all the records that is allocated by IANA but not claimed according to RIR's statistics. As an example, the following resources are not listed in AFRINIC's RIR Statistics:

    afrinic|ZZ|ipv6|2c0f:efa9::|32|20221205|reserved|afrinic|e-stats
afrinic|ZZ|ipv6|2c0f:efaa::|31|20221205|reserved|afrinic|e-stats

    This indicates that both /32 and /31 IPv6 according to IANA latests delegation was originally allocated to AFRINIC:

    iana|ZZ|ipv6|2c00:0000::|12|20061003|allocated|afrinic|iana

    But not all of these space is declared in their RIR statistics.

  • conflicts are if more than one RIRs or IANA claims the same records, example:

    apnic|ZZ|ipv4|203.0.113.0|256|20230222|reserved|apnic|e-stats
iana|ZZ|ipv4|203.0.113.0|256|20090714|reserved|ietf|iana

apnic|ZZ|ipv6|2001:db8::|32|20230222|reserved|apnic|e-stats
iana|ZZ|ipv6|2001:0db8::|32|20040701|reserved|ietf|iana

The resources are listed in APNIC RIR statistics while also listed as reserved on IANA delegated stats.

Visually each of these files can be illustrated as follows:

conflict

Notification

Conflicts, overclaimed, and unclaimed are reported to contacts representative from each of the RIRs, if they persisted for more than a configured grace period.