This data call gives access to various data sources maintained by IANA. These include:

• IANA 16-bit Autonomous System (AS) Numbers Registry (http://www.iana.org/assignments/as-numbers/as-numbers-1.csv)
• IANA 32-bit Autonomous System (AS) Numbers Registry (http://www.iana.org/assignments/as-numbers/as-numbers-2.csv)
• Etc. - the detailed list of data sources included can be seen in the methodology information of the data call. Note: Output format for the methodology information is JSON!

The data call supports a "resource" parameter which filters all results down to entries that are topologically related to the given resource.
The data is refreshed once a day to guarantee up-to-date information.

https://stat.ripe.net/data/iana-registry-info/data.<format>?<parameters> 

e.g. https://stat.ripe.net/data/iana-registry-info/data.json?resource=193/23

Parameters

Key	Value	Info	Required
resource	IP address, prefix or ASN	States the resource the data is being filtered on.	NO - if this parameter is not given the entire information is returned.
best_match_only	true/false	If a resource is given and this parameter is set, only the best match (which is the closest topologically) is returned.	NO - by default it is set to false.

Output

Data

Key	Info
load_time	Shows when the data was loaded from IANA.
resource	Mirrors the resource (if given) for this lookup.
returned	Number of entries in the result.
resources	Holds all the results that the lookup matches - if not filtered it will return all results from IANA. The details vary between data sources but all have in common the "description", "source" and "source_url" fields. "Description" is an added field, which tries to create a more human readable summary of the parsed data.

Example

data: {
    load_time: "2015-02-26T02:09:00",
    resource: "151.252.120.0-151.252.120.49",
    returned: 1,
    resources: [
        {
        resource: "151.0.0.0/8",
        description: "Administered by RIPE NCC",
        source_url: "http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.csv",
        source: "IANA IPv4 Address Space Registry",
        details: {
            Note: "",
            Date: "1993-05",
            Whois: "whois.ripe.net",
            Designation: "Administered by RIPE NCC",
            Status [1]: "LEGACY"
        },
    type_properties: [
        "ip",
        "v4",
        "prefix"
    ]
    }
    ]
}