ASN Whois Lookup Tool

Find Whois information of any ASN number.

About this tool:

ASN stands for autonomous system number is a collection of IP routing prefixes. It is generally same for all IP's of any organization, network operator or domain.

It is beneficial to recognize network traffic and set up policy-based routing. Specific ASN can be identified, allowed, or denied access to any network with policy-based routing. This tool helps a lot to determine to whom a particular ASN is registered.