Zoom Incident History

We are investigating an issue affecting Zoom AI Companion for a subset of customers in EU.

Customers may have experienced slow loading of pages for ZDM, Calendar, Zoom Rooms, Zoom Node, Zoom Mesh and Workspaces. This issue has now been resolved and we are monitoring.

We have detected service degradation where subset of users would be experiencing connectivity issues with Zoom meetings. Our engineers are currently investigating the impact and root cause. Zoom will provide updates as soon as there is more information to share.

We have resolved the intermittent issue with AIC service, live transcription & voice recognition. We are currently monitoring the issue and will provide updates as soon as we have them.

We have identified the issue with AIC service, live transcription & voice recognition. We are currently investigating and will provide updates as soon as we have them.

We have identified the issue with AIC service, live transcription, voice recognition, and ZVA intermittently. We are currently investigating and will provide updates as soon as we have them.

A subset of customers experiencing issues with Live Transcription and Voice Recognition services. We are currently investigating and will provide updates as we have them.

We have identified the issue with AIC service, live transcription, voice recognition, and ZVA intermittently. We are currently investigating and will provide updates as soon as we have them.

A subset of customers experiencing issues with Live Transcription and Voice Recognition services. We are currently investigating and will provide updates as we have them.

A subset of customers experiencing issues with Live Transcription and Voice Recognition services. We are currently investigating and will provide updates as we have them.

Our monitoring system detected an issue where a subset of users experiencing issues in compose and chat summary with Zoom Team Chat using AI Companion. We are currently investigating and will provide updates as we have them.

We continue to investigate the domain name resolution issues on the zoom.us domain that is affecting multiple services. More updates to follow.

We continue to investigate the domain name resolution issues on the zoom.us domain that is affecting multiple services. More updates to follow.

We are investigating domain name resolution issues on the zoom.us domain that is affecting multiple services. Regular updates will be provided.

A subset of users experiencing issues with inbound and outbound Zoom Phone calls in China. We are currently investigating and will provide updates as we have them.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We will be providing an update to Zoom Workforce Management. Please refer to https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0068337 for more details. This update includes seat limits for agent scheduling.There is no operational impact. All services will be available during this scheduled update.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We will be providing an update to Zoom Phone. Please refer to https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0062333 for more details. This update includes support for provisioning templates for Mitel OpenScape CPxx phones.For Japan SIP zones in Tokyo and Osaka, there is a separate maintenance window: 4/13/2025 8:00AM - 10:00AM PDT (4/14/2025 00:00 - 2:00 JST)There is no operational impact. All services will be available during this scheduled update.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Zoom is continuously optimizing our global footprint to improve performance and availability for our customers. With this, starting from April 11, 2025, Zoom Global Telecom Operations will be conducting a series of maintenance with our underlying telephony providers within the following regions/countries:Oceana:AustraliaNew ZealandAPAC:Hong KongJapanEMEA:AustriaBelgiumDenmarkFranceGermanyIrelandItalyPortugalSpainSwitzerlandUnited KingdomSouth AfricaThere is no expected downtime during the maintenances with our underlying carriers.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We will be providing an update to Zoom Virtual Agent. Please refer to https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0067812 for more details. This update includes timezone enhancements in reports.There is no operational impact. All services will be available during this scheduled update.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We will be providing an update to Zoom Contact Center. Please refer to https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0067626 for more details. This update includes Zoom Contact Center apps now available in the Zoom Web App.There is no operational impact. All services will be available during this scheduled update.

We have detected service degradation where subset of users would be experiencing connectivity issues with international dial in numbers from JapanKindly note, you may still connect to the dial in service via +81 363 628 317. Our engineers are currently investigating the impact and root cause. Zoom will provide updates as soon as there is more information to share.

We are investigating an issue where customers who have enabled presence interop with Microsoft will stop seeing Zoom presence status being updated in Microsoft tools. We will provide updates as we have them.

Zoom Phone team will perform maintenance work at our Hyderabad Data centre on April 5th at 11:30AM UTC, No operational Impact is expected during this work.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We have detected service degradation where a subset of users would be experiencing connectivity issues with Zoom Rooms. Our engineers are currently investigating the impact and root cause. Zoom will provide updates as soon as there is more information to share.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Zoom will add additional data centers in an existing region to the global Zoom routing network starting no earlier than 30 days from the posting of this notice. For network administrators with Zoom-specific proxy rules, please update your PAC files with the following site.New data centers:Hyderabad (India) - hy2.zoom.usMumbai (India) - mb2.zoom.usThe following new and updated IP subnet ranges will be deployed to Zoom resources to support the additional data centers above. We recommend that network administrators with Zoom-specific firewall or network rules update their systems as soon as possible in preparation. New IPv4 ranges:137.66.128.0/17168.140.0.0/17New IPv4 Zoom Phone ranges:137.66.128.0/17New Cloud Room Connector ranges:137.66.128.0/17168.140.0.0/17Additionally, the following IP subnet ranges are no longer in use and will be removed from Zoom Phone resources starting no earlier than 30 days from the posting of this notice:Removed Zoom Phone IP ranges:3.21.137.128/253.72.154.128/253.80.20.128/253.104.34.128/253.120.121.0/253.235.96.0/2318.159.143.0/2552.59.151.0/2599.79.20.0/25For a complete list, please see: https://assets.zoom.us/docs/ipranges/Zoom.txthttps://assets.zoom.us/docs/ipranges/ZoomMeetings.txthttps://assets.zoom.us/docs/ipranges/ZoomPhone.txthttps://assets.zoom.us/docs/ipranges/ZoomCRC.txtThese changes will not affect Data & Storage Settings within the web portal concerning regions selected for Real-time data center locations. This is only a notification about the addition of data centers, their applicable DNS, and IP addresses within the existing regions.A complete list of network firewall IP ranges for Zoom can be found on the Zoom Support site at: https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0060548In addition, a complete list of Zoom data centers can be found on the Zoom Support site at: https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0067446

We have identified an issue with Zoom Rooms, Workspace and Calendar. We will provide updates as we have them.

On 04/01/2025, between 1:25 UTC and 3:11 UTC, a subset of users were unable to perform Zoom Phone outbound calls in Singapore. This incident has been resolved and the service has been restored.

We are currently investigating a failure in the Melbourne region affecting multiple services. We are investigating and will provide updates as we have them.

On 03/29/2025, between 9:30 UTC to 9:58 UTC, a subset of customers might have experienced an issue with connecting to Zoom Rooms Web Controller in Germany. Our engineers have mitigated the issue. This incident has been resolved.

This incident has been resolved.

The issue impacting the inbound SMS & MMS traffic from T-Mobile subscribers to a subset of ZP and ZCC customers has been resolved. We will continue to monitor and provide updates as we have them.

Our Provider is continuing to work on a fix for this issue. We will share updates as received.

Our Provider is continuing to work on a fix for this issue. We will share updates as received.

Our Provider is continuing to work on a fix for this issue. We will share updates as received.

Our Provider is continuing to work on a fix for this issue. We will share updates as received.

Our Provider is continuing to work on a fix for this issue. We will share updates as received.

Our Provider is continuing to work on a fix for this issue. We will share updates as received.

Our Provider is continuing to work on a fix for this issue. We will share updates as received.

Our Provider is continuing to work on a fix for this issue. We will share updates as received.

We have identified the issue impacting the inbound SMS & MMS traffic from T-Mobile subscribers to a subset of ZP and ZCC customers. We are continuing to work with the provider and will provide updates as we have them.

We are investigating an issue where inbound SMS & MMS traffic from T-Mobile subscribers to a subset of ZP and ZCC customers might experience failure and receive "Sorry, the service is temporarily unavailable. Please try again later." message. We have engaged with the provider and will provide updates as we have them.

On 3/24/2025 between 21:45 and 22:40 UTC, a subset of ZP and ZCC customers might have experienced outbound call failures to mobile destinations. This issue has been resolved by our carrier.

This incident has been resolved.

A fix has been implemented and we are monitoring the results. We will continue to provide updates as we have them.

We have identified the issue and are working on remediation. We will continue to provide updates as we have them.

Our monitoring has detected a service degradation affecting Zoom's live transcription and translation service for the English language in Australia. Our engineers are currently investigating the issue to determine the impact and root cause. Zoom will provide updates as soon as more information becomes available

This incident has been resolved.

We have resolved issue where the surveys and clips created were not showing up on their respective pages for a subset of users in Australia region. We will continue to monitor and provide updates as we have them.

We are continuing to investigate this issue.

Our monitoring system has detected an issue where the surveys and clips created are not showing up on their respective pages for a subset of users in Australia region. We are currently investigating and will provide updates as we have them.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Zoom will perform service maintenance at our Hyderabad data center starting on March 21st at 14:30 UTC. During the maintenance window, a brief disconnection may be experienced and notifications may be missed. Services will be failed over to our Mumbai Data Center during the maintenance window.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We will be providing an update to Zoom Workforce Management. Please refer to https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0068337 for more details. This update includes Workforce Management integration with Workday HR systems.There is no operational impact. All services will be available during this scheduled update.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We will be providing an update to Zoom Phone. Please refer to https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0062333 for more details. This update includes the ability to switch Zoom Phone calls between Zoom Workplace desktop and mobile apps. For Japan SIP zones in Tokyo and Osaka, there is a separate maintenance window: 3/16/2025 8:00AM - 10:00AM PDT (3/17/2025 00:00 - 2:00 JST)There is no operational impact. All services will be available during this scheduled update.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We will be performing maintenance on Zoom Support Ticketing and Knowledge Base. Users may experience brief intermittent issues accessing Zoom Support’s Knowledge Base and Ticketing during the maintenance window.

This incident has been resolved.

We have resolved an incident causing a subset of users experience issues with Zoom Phone inbound and outbound calls. We will continue to monitor and provide updates as we have them.

We have identified an incident causing a subset of users experience issues with Zoom Phone inbound and outbound calls. We will continue to provide updates as we have them.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We will be providing an update to Zoom Virtual Agent. Please refer to https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0067812 for more details. This update includes a Zoom Connector widget for Zoom Virtual Agent.There is no operational impact. All services will be available during this scheduled update.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We will be providing an update to Zoom Contact Center. Please refer to https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0067626 for more details. This update includes integration between Zoom Team Chat and Zoom Contact Center.There is no operational impact. All services will be available during this scheduled update.

We will be undergoing scheduled maintenance during this time.

Zoom is continuously optimizing our global footprint to improve performance and availability for our customers. With this, starting from Jan 10th, 2025, Zoom Phone and Zoom Contact Center plans to shift traffic from old data centers to our newer data centers with weekly continuous migration changes.The Zoom Phone and Zoom Contact Center team will start to change the sip zone from the old sip zone to the new sip zone in the backend. We are sending out this notification to inform our customers of this change along with some reminders which will assist customers. We wanted to remind customers for optimal experience, and to avoid any potential issues, to please allow Zoom Traffic to all subnets located on our Zoom Network Firewall page. This includes specific sections for Zoom Phone & Zoom Contact Center.Customers would see the change in the admin portal of their sites showing the new sip zone after those changes if “Display Custom SIP Zone Options on Web Portal” feature is enabled in Zoom Phone. Customers would not see the sip zone name in Zoom Contact Center thus no portal change for Contact Center customers.Please note that all hardware phones will automatically reboot when a data center migration is triggered. If you have an ongoing call, it will reboot once the call has ended. Migrations are planned to occur during our weekend off hour change windows to reduce impact.Here are sip zone name mapping for old data center and new data center in the main global cluster:Zoom PhoneUS West (N. California) -> US West (SJC5)US West (N.California 2) -> US West (SJC6)US Central (Colorado) -> US West (SJC6)US Central (Colorado 2) -> US East (IAD6)US East (New York) -> US East (IAD5)US East (New York 2) -> US East (IAD6)Europe (Amsterdam) -> Europe (AMS1)Europe (Frankfurt) -> Europe (FRA1)Asia Pacific (Sydney) -> Asia Pacific (SYD1)Asia Pacific (Melbourne) -> Asia Pacific (MEL1)Asia Pacific (Tokyo) -> Asia Pacific (NRT1)Asia Pacific (Osaka) -> Asia Pacific (KIX1)Asia Pacific (Hong Kong SAR) -> Asia Pacific (HKG1)Asia Pacific (Hong Kong 2) -> Asia Pacific (HKG2)Asia Pacific (Singapore) -> Asia Pacific (SIN1)Mexico and Central America (Queretaro, MX) -> Mexico and Central America (QRO1)Zoom Contact CenterUS West (N. California) -> US West (SJC1)US Central (Colorado) -> US East(IAD1)Europe (Amsterdam) -> Europe (AMS2)Europe (Frankfurt) -> Europe (FRA2)Asia Pacific (Sydney) -> Asia Pacific (SYD1)Asia Pacific (Melbourne) -> Asia Pacific (MEL1)Asia Pacific (Tokyo) -> Asia Pacific (NRT1)Asia Pacific (Osaka) -> Asia Pacific (KIX1)To ensure that customers are aware of this change, we are sending out this notification, along with some reminders on allow lists for firewalls or other controls that will ensure customers are not impacted in any way by these changes. Customers should not need to do any active changes if they are following the guidance as provided in Zoom network firewall or proxy server settings. For any questions or concerns, please contact your account team or Zoom Support.FAQWhat is changing? Zoom Phone and Zoom Contact Center are shifting traffic from the old data centers to the new data centersWhen is this planned? Starting from Jan 10th, 2025 and on a weekly basis until all traffic moved overWhat do I, as a customer, need to do? If whitelist is done following Zoom network firewall or proxy server settings, nothing need to be done by customer in this stepDo I need to update my firewall or other systems to allow communications with these new data centers? Following the guidelines in Zoom network firewall or proxy server settings will help customers connect to the available Zoom data centers globally. As Zoom scales to meet customer demand and enable future products, platform IP addresses and network ranges will change to accommodate service growth and seasonal load spikes. As these services and ranges frequently evolve, Zoom does not provide specific IP address ranges assigned to geographical locations.Will this be the only change for Zoom Phone and Zoom Contact Center? As Zoom continuously optimizes our global footprint to improve performance and availability, there will be additional changes like Generic Device, BYOC, BYOP migration and will be communicated separately. Following the guidance in Zoom network firewall or proxy server settings will help customers connect to the available Zoom data centers.

Scheduled maintenance is currently in progress. We will provide updates as necessary.