Executive Summary
| What |
Upcoming Data Center Expansions |
| Action Required |
Update Your Firewall Policy Configuration |
| Concerned Clouds |
zscaler.net, zscloud.net, zscalertwo.net, zscalerthree.net, private.zscaler.com, zpatwo.net |
| Availability |
August 15, 2025 or later |
Details
As part of our effort to provide the world’s most robust and high-performance internet security platform, Zscaler is expanding its global data center (DC) footprint and will soon be offering services from new or expanded facilities at the locations listed below. These will provide the scalability and reliability required to meet the growing demand for global connectivity on our cloud platform along with the following benefits:
- A significant capacity increase, including IPSec VPNs.
- Seamless migration in the future, as the IP addresses used are portable and Zscaler-owned.
- Increased resiliency with multiple transit providers.
- Updated network design with state-of-the-art routers and switches.
What are the new IP Address ranges for these DCs?
| Region |
Location |
CIDR |
Notes |
| EMEA |
London V |
170.85.62.0/23 |
Expansion of Existing DC
|
| EMEA |
London V |
170.85.64.0/23 |
Expansion of Existing DC
|
| EMEA |
Manchester II |
170.85.232.0/23 |
Expansion of Existing DC
|
| EMEA |
Manchester II |
170.85.234.0/23 |
Expansion of Existing DC
|
| EMEA |
Vienna I |
165.225.248.0/23^ |
Expansion of Existing DC
|
^Does not apply to private.zscaler.com, & zpatwo.net clouds
What do I need to do?
You must update your firewall policy rules along with any upstream ACL(s) to allow the new IP address ranges before August 15, 2025.
When will the service be provisioned with the new IP range(s)?
The services through the new IP Address ranges would become available anytime on or after the availability date listed above. An advance notification via Trust post would be made for the same, if you have not signed up to receive Trust Portal posts, you can subscribe to them here.
What if I have more questions?
If you have additional questions, contact Zscaler Support via the Support link in the Admin Portal or contact us at +1-408-752-5885. Within the U.S. you can use
+1-844-971-0010.
Regards,
Zscaler Support Team
www.zscaler.com
