IP ASN
Announced IPv4 and IPv6 space, attributed to its origin AS, with the route's RPKI status.
| ID | ip_asn_v1 |
|---|---|
| Formats | csvgz, mmdb |
| Update Frequency | Daily |
| Last Updated | November 8th 2026 (today) |
| Entries | 1,497,659 |
File Size (csvgz) | 20.4 MB |
File Size (mmdb) | 78.0 MB |
Overview
Every range in the global routing table, split so that each address belongs to the most specific prefix announcing it. prefix is that announcement and asn its origin; where more than one AS originates a prefix, the one most of the routing table sees is kept. name, domain, type and country are the origin AS's, as the ASN database publishes them.
rpki_status is the route's validation against the published RPKI data (RFC 6811). Bogon space and reserved AS numbers are left out.
Free under CC BY-SA 4.0, like every Open database: credit InternetData with a link to internetdata.io, and share what you build from it under the same license.
Formats
curl -L -o ip_asn_v1.csv.gz -X GET "https://internetdata.io/api/v2/database/download?id=ip_asn_v1&format=csvgz&apikey=$APIKEY"| Name | Type | Description |
|---|---|---|
start_ip | ipaddress | Start IP of the IP range. |
end_ip | ipaddress | End IP of the IP range. |
prefix | string | The announced BGP prefix that covers the range; the most specific when several do. |
asn | integer | Autonomous System Number originating the prefix. |
name | string | Name of the organization that operates the ASN. |
domain | string | The ASN operator's own registrable domain. |
type | string | Kind of network the ASN runs. Values are listed below.
|
country | string | ISO 3166 country code the registry assigned the ASN to. |
rpki_status | string | RPKI route origin validation (RFC 6811) of the covering announcement. Values are listed below.
|
| start_ip | end_ip | prefix | asn | name | domain | type | country | rpki_status |
|---|---|---|---|---|---|---|---|---|
2408:8956:2040:: | 2408:8956:204f:ffff:ffff:ffff:ffff:ffff | 2408:8956:2040::/44 | 17622 | China Unicom Guangzhou network | chinaunicom.cn | isp | CN | valid |
2a02:ac40:: | 2a02:ac47:ffff:ffff:ffff:ffff:ffff:ffff | 2a02:ac40::/29 | 20559 | Fundaments B.V. | fundaments.nl | hosting | NL | valid |
118.143.161.0 | 118.143.163.255 | 118.143.160.0/19 | 9304 | HGC Global Communications Limited | hgc.com.hk | isp | HK | valid |
2800:860:703d:: | 2800:860:703d:ffff:ffff:ffff:ffff:ffff | 2800:860:703d::/48 | 262197 | MILLICOM CABLE COSTA RICA S.A. | tigo.cr | isp | CR | valid |
210.72.151.0 | 210.72.151.255 | 210.72.151.0/24 | 7497 | Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) | cnic.cn | education | CN | valid |