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Reminder Notification for Additions to HUB IP Address Ranges - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, zdxcloud.net

Degraded Impact Investigating Ongoing August 18, 2026

Incident Lifecycle

Investigating

Incident Timeline

Investigating
Dear Customer, In accordance with Zscaler Service Continuity Policy and as previously announced via Trust and email notification sent on July 1, 2026, we would like to remind you of the upcoming changes to HUB IP address ranges as listed below. The services through the new IP address range will be available anytime on or after August 30, 2026.CIDRNotes137.31.134.0/23New addition to Required Hub IP addressesPlease update your firewall policy rules and any upstream access control lists t...
Aug 18, 2026 at 4:43 PM UTC
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