Network tool
ASN Lookup
Look up the autonomous system, network prefix, and operator associated with a public IP address.
What this result means
An ASN identifies a network under one routing policy. The returned network information describes routing and network ownership, not an individual user or exact physical location.
How this check works
This lookup accepts a public IPv4 or IPv6 address and reports available IP version, ASN, network operator, routed network range, organization domain, and country data.
Results depend on available IP intelligence and may be incomplete or change as prefixes are reassigned or routing records are updated.
Learn more: What Is an ASN? →