ASN Prefixes

What It Does

Queries the RIPEstat Data API to retrieve all IP prefixes currently announced by the specified ASN in the global BGP routing table. Returns IPv4 prefixes with CIDR notation, IP count (calculated as 2^(32-prefix_length)), name, description, and country code. IPv6 prefixes include CIDR, name, description, and country code. Also provides aggregate totals of prefixes and estimated total IPv4 addresses. Results are cached for 1 hour since BGP prefix changes are infrequent.

Why It's Useful

Understanding the full IP footprint of an autonomous system is critical for security operations, threat intelligence, and network planning. It enables comprehensive blocklisting/allowlisting at the ASN level, attack surface enumeration, vendor IP space auditing, and peering capacity assessment. This is the foundation of ASN-based security intelligence — knowing every IP range an organization controls. See RFC 6811 (BGP Prefix Origin Validation) and RFC 7908 (Route Leak Classification) for related security standards.

Use Cases

Parameters

Response Fields

Code Examples

curl "https://api.edgedns.dev/v1/network/asn/prefixes" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d "asn=13335"

const response = await fetch(
  'https://api.edgedns.dev/v1/network/asn/prefixes?asn=13335',
  {
    headers: {
      'Authorization': 'Bearer YOUR_API_KEY'
    }
  }
);

const data = await response.json();
console.log(data);

import requests

response = requests.get(
    'https://api.edgedns.dev/v1/network/asn/prefixes',
    headers={'Authorization': 'Bearer YOUR_API_KEY'},
    params={
    'asn': '13335'
    }
)

data = response.json()
print(data)

Related Endpoints

External References

Learn more about the standards and protocols behind this endpoint.