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ASN Lookup
x402
ASN Lookup is a paid API for AI agents from bbx-misc.vercel.app, paid per call via x402, $0.068343/call, status unknown (last checked 2026-10-10).
Looks up Autonomous System Number (ASN) information for a given IP address or ASN identifier
Price / call$0.068343
Success—
StatusUnknown
How this service works
BaseBuilder Misc API hub - 21 paid endpoints
Output
Returns ASN metadata for the queried IP or ASN, including the autonomous system number, owning organization name, network CIDR range, country of registration, ISP/provider name, and regional internet registry (RIR).
Example use cases
Identify suspicious IP traffic source
“I'm seeing a lot of traffic from 104.21.45.100 in my logs — can you look up the ASN for that IP and tell me which organization or ISP owns it?”
Enrich IP addresses in security report
“Look up the ASN details for 185.220.101.50 — I need the organization name, country, and network block it belongs to for a threat intelligence report.”
Verify cloud provider ownership
“Can you check the ASN information for 52.84.0.1 and confirm whether it belongs to Amazon AWS or another cloud provider?”
Technical details
Endpoint
POSThttps://bbx-misc.vercel.app/api/asn-lookup?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to resolve ASN ownership and network metadata for an IP address as part of cybersecurity investigations, IP enrichment pipelines, threat intelligence workflows, or network auditing. Prefer it over generic IP geolocation services when BGP/routing organization data is the primary need.
Side effects
- Invalid IP address format returns a 400 or error response
- Private/reserved IP addresses (e.g. 192.168.x.x, 10.x.x.x) may return no ASN data
- Unknown or unregistered ASN returns empty or null result
- Payment failure or insufficient USDC balance returns 402
- Rate limiting may occur under heavy usage
Tags
x402
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