Tools/ASN Lookup

    ASN Lookup & Network Intelligence

    Look up Autonomous System Numbers (ASN), IP addresses, or domains to discover network ownership, announced prefixes, BGP peers, and abuse contacts.

    Try:

    What is an ASN?

    An Autonomous System Number (ASN) is a unique identifier assigned to a network operator (ISP, enterprise, cloud provider) for BGP routing. Each ASN controls a set of IP prefixes.

    What can you look up?

    • • ASN numbers (e.g., AS15169, 13335)
    • • IP addresses (e.g., 8.8.8.8, 1.1.1.1)
    • • Domain names (e.g., google.com)

    Security use cases

    • • Identify network ownership
    • • Investigate suspicious IPs
    • • Map attack surface infrastructure
    • • Find abuse contacts for reporting