Find the Autonomous System by IP address or AS number.
An Autonomous System (AS) is a group of IP networks under a single administrative authority. Each AS is assigned a unique number (ASN) used for routing traffic on the internet via the BGP protocol.
ASN (Autonomous System Number) is a unique network identifier on the internet. Each ISP has one or more ASNs.
Enter an IP address in the check field — we show the ASN, organization name, country, and IP range.
To identify the provider, analyze network infrastructure, investigate security incidents, and geolocate IPs.