SecArsenalDatabase and API service for looking up which ASN owns a given IP address.
Platforms: Web · Last verified October 1, 2026
Database and API service for looking up which ASN owns a given IP address.
Only use this tool against systems you own or are explicitly authorized to test — see the disclaimer.
Best for: IP to ASN lookup with historical data. See the official site linked above for details.
SecArsenal is an independent, educational reference. It does not host, distribute, or provide exploit code — only descriptions of, and links to, publicly available third-party tools and operating systems.
By continuing, you acknowledge that you will only use the tools and techniques referenced on this site against systems, networks, or accounts you own or are explicitly authorized to test; that unauthorized access to computer systems may be illegal in your jurisdiction; and that all information is provided "as is," and that SecArsenal and its contributors assume no liability for how it is used.
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