Announcing IP Address Changes (No Operational Impact)

Scheduled for Sep 8, 23:59 PDT - Sep 9, 00:00 PDT

Scheduled

The following new IPv4 and IPv6 subnet ranges will be deployed to the Zoom for Government Meeting and Webinar, Zoom Contact Center (ZCC), Cloud Room Connector (CRC), Enhanced Room Connector, and content delivery network (CDN) resources, starting no earlier than 30 days from the posting of this notice. We recommend that network administrators, with Zoom for Government-specific firewall or network rules, update their systems as soon as possible in preparation.

New IPv4 range for Meetings and Webinars, ZCC, CRC, and Enhanced Room Connector:
172.231.81.0/24

New IPv4 range for CDN:
172.231.80.0/24

New IPv6 range for Meetings and Webinars, ZCC, CRC, and Enhanced Room Connector:
2620:123:20fb::/48

New IPv6 range for CDN:
2620:123:20fa::/48

A complete list of network firewall IP ranges for Zoom for Government can be found on the Zoom for Government Support site at: https://support.zoomgov.com/hc?id=kb_article_view&sysparm_article=KB0010104

Posted Aug 08, 2025 - 12:38 PDT

This scheduled maintenance affects: Zoom Meetings (Zoom Meetings, Zoom Conference Room Connector, Zoom Webinars) and Zoom Contact Center (Zoom Contact Center).