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Vextorium ASN Info Lookup
x402
Vextorium ASN Info Lookup is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-19).
Returns detailed information about an Autonomous System Number (ASN) including holder name, IP prefix counts, block source, and sample prefixes.
Price / call$0.003
Success—
StatusUnknown
How this service works
558 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.
Output
A JSON object containing the ASN integer, the registered holder organization name, the block assignment source and regional registry, the data source (e.g. RIPEstat), a boolean indicating whether the ASN is actively announcing prefixes, the count of IPv4 and IPv6 prefixes, an approximate count of IPv4 addresses, and a sample list of announced IP prefixes.
Example use cases
Identify network owner behind suspicious traffic
“We're seeing traffic from a suspicious IP — can you look up ASN 14061 and tell me who the registered holder is, how many prefixes they announce, and what block it's assigned from?”
Enrich threat intelligence report with ASN data
“I'm writing a threat report and need ASN details for AS9009 — specifically the holder name, whether it actively announces prefixes, and a sample of the IP ranges they own.”
Compare IPv4 vs IPv6 adoption for a major CDN
“Can you pull up the ASN info for AS20940 and show me how many IPv4 versus IPv6 prefixes Akamai is announcing right now?”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/asn-info?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need structured, multi-field ASN intelligence in a single call — including holder identity, prefix counts, block source, and sample prefixes — rather than a simple WHOIS lookup or raw registry query. Ideal for network enrichment pipelines, threat intelligence workflows, and IP infrastructure analysis where you need reliable, parsed data without scraping registries yourself.
Side effects
- Invalid or non-existent ASN returns null fields or an error
- ASN string not formatted correctly may cause a validation error
- Unassigned or reserved ASNs may return empty or null holder/block fields
- RIPEstat upstream outage may result in stale or unavailable data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| asn | string |
Output
Schema · Response
{
"type": "json",
"example": {
"asn": 13335,
"block": "Assigned by ARIN",
"holder": "CLOUDFLARENET - Cloudflare, Inc.",
"source": "RIPEstat (RIPE NCC)",
"announces": true,
"ipv4_prefixes": 2478,
"ipv6_prefixes": 3057,
"prefixes_sample": [
"104.28.1.0/24",
"162.158.106.0/24"
],
"ipv4_addresses_approx": 1498368
}
}Tags
x402
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