NetQuery Tools: DNS, email, and network investigation platform

ASN Lookup Tool

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Frequently Asked Questions

What is an ASN lookup?
It identifies the Autonomous System Number (ASN) associated with an IP address and the organization that operates it.
How do I perform an IP ASN lookup?
Enter the IP address and the tool returns the ASN details for that address.
Can I find ASN details for IPv6 addresses?
Yes. The lookup supports both IPv4 and IPv6 addresses.
Why is ASN information important?
ASN data helps with routing analysis, security investigations, and understanding network ownership and topology.
What can I learn from an ASN lookup?
You can see the organization that owns the IP range and gain insight into routing policies and infrastructure.