Every allocated AS number, with its holder, domain, network type, announced space and RPKI standing.

ID	`asn_v1`
Formats	`csvgz`
Update Frequency	Daily
Last Updated	September 30th 2026 (today)
Entries	123,029
File Size (`csvgz`)	2.86 MB

Overview

One row per AS number the regional registries have allocated. The holder's name, country, registry and allocation date come from the registries' own records. domain is the holder's own domain where one can be established, and type is our classification of the network the AS runs.

The announcement columns count what the AS originates in the global routing table: num_ips its IPv4 addresses, num_prefixes4 and num_prefixes6 its prefixes, and rpki_valid, rpki_invalid and rpki_not_found its routes by RPKI validation state. An AS that announces nothing has zeros there.

IP ASN maps every announced range to its origin AS, and ASN Whois carries each AS number's registry record and contacts.

Formats

curl -L -o asn_v1.csv.gz -X GET "https://internetdata.io/api/v2/database/download?id=asn_v1&format=csvgz&apikey=$APIKEY"

Schema

Name	Type	Description
`asn`	`integer`	Autonomous System Number.
`name`	`string`	Name of the organization that operates the ASN.
`country`	`string`	ISO 3166 country code the registry assigned the ASN to.
`registry`	`string`	The regional internet registry that allocated the ASN: afrinic, apnic, arin, lacnic or ripe.
`allocated`	`date`	Date the registry allocated the ASN.
`domain`	`string`	The operator's own registrable domain.
`type`	`string`	Kind of network the ASN runs. Values are listed below. `isp` An Internet service provider: access, mobile or transit networks that connect other people. `hosting` A hosting, cloud, CDN or content network whose addresses serve machines rather than people. `education` A university, school or research and education network. `government` A government body, agency or armed service. `business` Any other organization running its own network, and the default when no signal says otherwise.
`num_ips`	`integer`	IPv4 addresses the ASN originates in global BGP.
`num_prefixes4`	`integer`	IPv4 prefixes the ASN announces.
`num_prefixes6`	`integer`	IPv6 prefixes the ASN announces.
`rpki_valid`	`integer`	Announcements an RPKI ROA authorizes.
`rpki_invalid`	`integer`	Announcements RPKI ROAs contradict: a wrong origin, or more specific than allowed.
`rpki_not_found`	`integer`	Announcements no RPKI ROA covers.

Samples

asn	name	country	registry	allocated	domain	type	num_ips	num_prefixes4	num_prefixes6	rpki_valid	rpki_invalid	rpki_not_found
`200716`	`Rafael Possamai`	`US`	`ripe`	`2022-12-08`	`as200716.net`	`education`	`0`	`0`	`0`	`0`	`0`	`0`
`151367`	`ONDO SALES LLC`	`MN`	`apnic`	`2023-05-31`	`ondo.mn`	`business`	`0`	`0`	`0`	`0`	`0`	`0`
`328791`	`Mr. Price Group Limited`	`ZA`	`afrinic`	`2021-01-25`	`mrpricegroup.com`	`business`	`256`	`1`	`0`	`1`	`0`	`0`
`63966`	`RIZAL1`	`PH`	`apnic`	`2015-03-25`	`rcbc.com`	`business`	`512`	`3`	`0`	`3`	`0`	`0`
`402953`	`Camas School District`	`US`	`arin`	`2026-08-24`	`wednet.edu`	`education`	`0`	`0`	`0`	`0`	`0`	`0`

ASN

Overview

Formats

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