- Level
- confirmed
- Worst impact
- Degraded
- Components
- Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery
- Regions
- us
- Down Index
- 25of 100
What to do
Check whether you use Duo Security Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery and 45 more in us. Check your stack
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 4h 18m it lasted.
Anything that failed between 2026-02-23 14:02 UTC and 2026-02-23 18:20 UTC may need a replay.Subscribe to Duo Security's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=duo works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from Duo Security 3
- investigating
We are currently investigating an issue causing an abnormal phone call authentication success rate for the US region. Please check back here or subscribe to updates for any changes.
provider
- monitoring
The issue causing an abnormal phone call authentication success rate is tied to a third-party carrier. We are monitoring the third-party's communications at this time and can confirm that Duo telephony services are functioning as expected at this time.
provider
- resolved
The issue causing an abnormal phone call authentication success rate has been resolved by the third-party carrier.
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-30b129894d
Is Duo Security still down?
No, this incident was resolved 2026-02-23 18:20 UTC. For Duo Security's live state, see https://down.guide/duo.
How long did it last?
4h 18m, from 2026-02-23 14:02 UTC to 2026-02-23 18:20 UTC, by the times Duo Security posted.
What was affected?
Duo Security named Phone Call Delivery, Phone Call Delivery, Phone Call Delivery, Phone Call Delivery and 45 more in us.
What caused it?
Duo Security hasn't published a root cause. If it does, it shows here.
Where does this come from?
Duo Security's official status page, https://status.duo.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.