This tool allows you to look up the Autonomous System Number (ASN) information for a given IP address. You can enter either an IPv4 or IPv6 address to retrieve ASN details.
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Simply enter a valid IPv4 or IPv6 address in the input box below and click the “Lookup” button. The tool will then fetch and display the corresponding ASN details.
An Autonomous System Number (ASN) is a unique number assigned to an autonomous system (AS) for routing purposes on the Internet. An AS is a collection of IP networks and routers under the control of one or more network operators that share a common, clearly defined routing policy.
ASN numbers are used by internet service providers (ISPs), content delivery networks (CDNs), and other organizations to identify and exchange routing information between different networks on the internet.