ZFD Announcing Updated IP Address Ranges: September 28, 2026 (No Operational Impact)

Scheduled for Sep 28, 23:59 PDT - Sep 29, 00:00 PDT

Scheduled

The following new IPv4 subnet range will be deployed to Zoom for Defense for Zoom Phone and Zoom Contact Center resources, starting no earlier than 30 days from the posting of this notice. We recommend that network administrators, with Zoom for Defense-specific firewall or network rules, update their systems as soon as possible in preparation.

New IPv4 range for Zoom Phone:
140.13.184.0/21

New IPv4 range for Zoom Contact Center:
140.13.184.0/21

A complete list of network firewall IP ranges for Zoom for Defense can be found on the Zoom for Defense Support site at:
https://support.zoomgov.com/hc?id=kb_article_view&sysparm_article=KB0011025

Posted Aug 28, 2026 - 09:53 PDT

This scheduled maintenance affects: ZFG: Zoom Phone (Zoom Phone) and ZFG: Zoom Contact Center (Zoom Contact Center).