Zscaler
Zscaler publishes hub IP ranges as JSON for firewall allowlisting. Use the required and recommended feeds for your Zscaler cloud name (commonly zscaler.net; also zscloud.net, zscalerone.net, and others).
Autonomous systems
AS22616
AS53813
AS62044
Published ranges
Zscaler hub IPs (required) — zscaler.net
Official feedJSON hubPrefixes required for Zscaler cloud connectivity on zscaler.net. Replace the cloud name in the URL path for other Zscaler clouds.
Zscaler hub IPs (recommended) — zscaler.net
Official feedJSON hubPrefixes recommended for zscaler.net alongside the required list.