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ASN lookup

An Autonomous System Number (ASN) identifies a network or group of networks operated under one routing policy on the public internet. Search by ASN, organization, legal name, or handle when you do not know the number.

Enter an ASN, organization, handle, or IP address

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The same search also accepts organization names, ASN handles, IPv4 and IPv6 addresses, IP prefixes, and AS numbers.

Popular results

Popular ASN lookups

AS15169

Google network · observed IPv4 or IPv6 prefixes

AS13335

Cloudflare network · observed IPv4 or IPv6 prefixes

AS19281

Quad9 network · observed IPv4 or IPv6 prefixes

AS36692

OpenDNS network · observed IPv4 or IPv6 prefixes

AS16509

AWS network · observed IPv4 or IPv6 prefixes

AS8075

Microsoft network · observed IPv4 or IPv6 prefixes

AS32934

Meta network · observed IPv4 or IPv6 prefixes

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