Dear Zscaler Customer,
In accordance with the Zscaler Service Continuity Policy and per email notification dated May 22, 2024, Zscaler is expanding its global data center (DC) footprint and has added new IP blocks to the list of its Zscaler Aggregate IP Address Ranges, formerly Future DCs, and the ‘Recommended’ Hub IP Address Ranges.. These would be effective anytime on or after July 22, 2024; 60 days or more from the date the first email notification is sent.
Please update your firewall policy rules along with any upstream ACL(s) to allow the new IP address ranges to avoid any service disruption.
Region | Location | CIDR | Notes |
Global | All | 209.55.128.0/18 | All Clouds and Products |
Global | All | 209.55.192.0/19 | All Clouds and Products |
You can view the full list of Zscaler Aggregate IP Address ranges by going to 'https://config.zscaler.com/<Zscaler cloud name>/.net/cenr' for your Zscaler cloud (e.g., https://config.zscaler.com/zscaler.net/cenr).
To view the full list of Hub IP Address ranges, refer 'https://config.zscaler.com/<Zscaler cloud name>/hubs' for your Zscaler cloud (e.g., https://config.zscaler.com/zscaler.net/hubs).
To learn more, see What is my cloud name for ZIA?
If you have any questions, please contact Zscaler Support via the “Support” link on the Zscaler Administration U.I. or contact us by phone:
USA Toll Free: +1-844-971-0010
Global Direct: +1-408-752-5885
