Williams College - Status Page

Due to a change with our phone carrier(s), the following Toll-Free or Toll numbers are being decommissioned from Audio Conferencing on 11/6/2026.

Angola +244 XXXX255009

Bahrain +973 XXXX6238

Brunei +673 XXXX309

Costa Rica +506 XXXX425510

Ecuador +593 XXXX000785

Egypt +20 XXXX0009608

Ghana +233 XXXX84860

Kazakhstan +7 XXXX0808315

Macau +853 XXXX1604

Qatar +974 XXXX00059

South Africa +27 XXXX64584

Taiwan +886 XXXX17473, +886 XXXX99864

UAE +971 XXXX4910899

Accounts will still have other Toll-Free or Toll numbers available for use.

Please make sure to make any necessary updates in your Admin Portal (https://zoom.us/account/setting?tab=telephony) to ensure availability for use of the remaining Toll-Free or Toll numbers on your account. If you are not already using the remaining numbers, meetings currently scheduled for 11/6/2026 and onward may need to be rescheduled to ensure the updated Toll-Free or Toll numbers are reflected in the newly scheduled meetings. If meeting invites are not updated to reflect the additional Toll-Free or Toll numbers, participants dialing in will not be able to join using the decommissioned numbers after 11/6/2026. Any newly created meetings scheduled after you’ve updated the numbers in your portal will be automatically updated with the remaining Toll-Free or Toll numbers for future invites.

To view your current and new numbers in order to make the above changes, please visit your Admin Portal. There you will be able to find all Toll-Free or Toll numbers that will remain supported.

The published IP ranges for Zoom Meetings and Webinars, Contact Center, and Phone services have been updated, including the removal of decommissioned entries and mask changes. We recommend that network administrators with Zoom-specific firewall or network rules update their systems as soon as possible.

Removed IPv4 addresses for Zoom Meetings and Webinars:
3.235.96.0/23
69.174.108.0/22

New IPv4 addresses for Zoom Meetings and Webinars:
3.235.96.26/31
3.235.96.158/31
69.174.110.0/23

Removed IPv4 addresses for Zoom Phone:
8.5.128.0/24
69.174.108.0/22

New IPv4 addresses for Zoom Phone:
69.174.110.0/23

Removed IPv4 addresses for Zoom Contact Center:
3.235.96.0/23

New IPv4 addresses for Zoom Contact Center:
3.235.96.26/31
3.235.96.158/31

For a complete list, please see:
https://assets.zoom.us/docs/ipranges/Zoom.txt
https://assets.zoom.us/docs/ipranges/ZoomMeetings.txt
https://assets.zoom.us/docs/ipranges/ZoomPhone.txt
https://assets.zoom.us/docs/ipranges/ZoomPhone-TCP443.txt
https://assets.zoom.us/docs/ipranges/ZoomPhone-TCP5091.txt
https://assets.zoom.us/docs/ipranges/ZoomCC.txt
https://assets.zoom.us/docs/ipranges/ZCCFlowScriptCallWidget.txt

A complete list of network firewall IP ranges and domains for Zoom can be found on the Zoom Support site at:

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0060548