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Search by ASN

ASN: (ASN Lookup)     Valid?     Online?    

What's an ASN?

  • An Autonomous System Number (ASN) uniquely identifies the organization that is responsible for a block of IP addresses. A phishing website can be traced back to the responsible ASN with this tool.

How do I use this?

  • Use the ASN Lookup link to find the AS number for a particular network you want to investigate.
  • We encourage network operators to review the suspected phishes found on their networks and take appropriate action. This information is also available as an RSS feed. The URL of the RSS feed is available after you do a search.
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