ASN is not

Matches when the request originates from an Autonomous System Number not included in the Defined ASNs list.

This condition determines if a request originated from an Autonomous System Number (ASN) that is not present in a specified list.

Note:

This web control condition is available on both Request and Response web controls.

Configuration

Defined ASNs: A list of one or more ASNs to exclude from matching, each a positive number with no leading zero. The condition returns true if the request’s ASN is not present in this list. At least one ASN must be defined.

Measurement

To evaluate this condition, the proxy resolves the IP address from the incoming request and performs a lookup against a geolocation database. It retrieves the ASN for the IP and returns true only if that number is absent from the Defined ASNs list. If the IP address cannot be mapped to an ASN, the condition returns true.

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Last modified on July 10, 2026