Live Cisco Duo SMS Message Delivery status. See if Cisco Duo SMS Message Delivery is down, view recent outages, and get real-time alerts when problems start.
Cisco Duo SMS Message Delivery is operational
IsDown pulls data from Cisco Duo's status page every few minutes and collects user-reported issues. Refresh the page to see if there are any updates.
This chart displays the number of user-reported issues over the past 24 hours, grouped into 20-minute intervals. It's normal to see occasional reports, which may be due to individual user issues rather than a broader problem. We only consider an issue widespread if there are multiple reports within a short timeframe.
IsDown has tracked 41 incidents for Cisco Duo SMS Message Delivery since started monitoring Cisco Duo status in February 2021. We collect data from 4200+ services, and normalize the data to give you a clear picture of the impact of the outage.
3 days ago · lasted about 2 hours
We are currently investigating an issue affecting SMS delivery to phone numbers in Greece. Please feel free to check back here or subscribe to updates for the latest information regarding any changes or resolutions.
about 1 month ago · lasted about 1 hour
We are currently investigating an issue causing intermittent SMS delivery failures in the US region. While we investigate this, please use alternate authentication methods such as Duo Push, Duo Mobile Passcodes, Hardware Token etc. to login to yo...
4 months ago · lasted about 7 hours
We are currently investigating an issue causing Admin Panel login and SMS/Phone Call delivery failures across all deployments. If you can access your Admin Panel, please utilize our other MFA methods such as Push, Passcodes, Hardware Tokens, and ...
We've tracked and collected 41 incidents for Cisco Duo SMS Message Delivery since started monitoring Cisco Duo status
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Cisco Duo SMS Message Delivery isn't down. You can check Cisco Duo SMS Message Delivery status and incident details on the top of the page. IsDown continuously monitors Cisco Duo SMS Message Delivery official status page every few minutes. In the last 24 hours, there were 0 outages reported.
Cisco Duo SMS Message Delivery is currently operational. You can check Cisco Duo SMS Message Delivery status and incident details on the top of the page. The status is updated in almost real-time, and you can see the latest outages and issues affecting customers.
No, there is no ongoing official outage. Check on the top of the page if there are any reported problems by other users.
Currently there's no report of Cisco Duo SMS Message Delivery being slow. Check on the top of the page if there are any reported problems by other users.
IsDown monitors the Cisco Duo SMS Message Delivery official status page every few minutes. We also get reports from users like you. If there are enough reports about an outage, we'll show it on the top of the page.
Cisco Duo SMS Message Delivery last outage was on May 28, 2025 with the title "SMS Delivery Issues to Greece Phone Numbers"
IsDown and DownDetector help users determine if a service is having problems. The big difference is that IsDown is a status page aggregator. IsDown monitors a service's official status page to give our customers a more reliable source of information. The integration allows us to provide more details about the outage, like incident title, description, updates, and the parts of the affected service. Additionally, users can create internal status pages and set up notifications for all their third-party services.
IsDown offers an easy way to monitor Cisco Duo with maximum flexibility
IsDown monitors SMS Message Delivery for major outages. A major outage is when SMS Message Delivery experiences a critical issue that severely affects one or more services/regions. When Cisco Duo marks an incident as a major outage, IsDown updates its internal status, the customer status page and dashboard. Depending on the customer settings, IsDown will also send notifications.
IsDown monitors Cisco Duo status page for minor outages. A minor outage is when SMS Message Delivery experiences a small issue affecting a small percentage of its customer's applications. An example is the performance degradation of an application. When a minor outage occurs, IsDown updates its internal status and shares that information on the customer status page. Depending on the customer settings, IsDown will also send notifications.
IsDown collects all information from the outages published in Cisco Duo status page to provide the most accurate information. If available, we gather the title, description, time of the outage, status, and outage updates. Another important piece of information is the affected services/regions which we use to filter the notifications that impact your business.
Cisco Duo publishes scheduled maintenance events on their status page. IsDown collects all the information for each event and creates a feed that people can follow to ensure they are not surprised by unexpected downtime or problems. We also send the feed in our weekly report, alerting the next maintenances that will take place.
IsDown monitors Cisco Duo and all their 528 components that can be affected by an outage. IsDown allows you to filter the notifications and status page alerts based on the components you care about. For example, you can choose which components or regions affect your business and filter out all other outages. This way you avoid alert fatigue in your team.
Cisco Duo and other vendors don’t always report outages on time. Our crowdsourced status platform helps you stay ahead of outages. Users report issues and outages, sharing details on what problems they are facing. We use that info to provide early signs of outages. This way, even without an official update, you can stay ahead of possible problems.
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