Resolved
The SMS delivery issue impacting customers in the US region has been resolved. SMS passcode authentication is now functioning normally.
We apologize for any inconvenience caused and thank you for your patience.
Posted Apr 18, 2026 - 03:09 EDT
Update
We are continuing to investigate the SMS delivery issue impacting all customers in the US region. Push notifications will continue to work as expected. Further updates will be provided as more information becomes available.
Posted Apr 18, 2026 - 01:39 EDT
Investigating
We are currently detecting an issue with carriers in the US region for SMS delivery. We are currently working with providers to restore the service. In the meantime, please use other means of authentication such as Duo Push.
Posted Apr 18, 2026 - 00:30 EDT
This incident affected: DUO1 (SMS Message Delivery), DUO2 (SMS Message Delivery), DUO4 (SMS Message Delivery), DUO6 (SMS Message Delivery), DUO7 (SMS Message Delivery), DUO10 (SMS Message Delivery), DUO13 (SMS Message Delivery), DUO14 (SMS Message Delivery), DUO15 (SMS Message Delivery), DUO16 (SMS Message Delivery), DUO17 (SMS Message Delivery), DUO18 (SMS Message Delivery), DUO19 (SMS Message Delivery), DUO20 (SMS Message Delivery), DUO21 (SMS Message Delivery), DUO22 (SMS Message Delivery), DUO23 (SMS Message Delivery), DUO24 (SMS Message Delivery), DUO28 (SMS Message Delivery), DUO31 (SMS Message Delivery), DUO33 (SMS Message Delivery), DUO36 (SMS Message Delivery), DUO37 (SMS Message Delivery), DUO39 (SMS Message Delivery), DUO40 (SMS Message Delivery), DUO41 (SMS Message Delivery), DUO42 (SMS Message Delivery), DUO9 (SMS Message Delivery), DUO49 (SMS Message Delivery), DUO50 (SMS Message Delivery), DUO52 (SMS Message Delivery), DUO55 (SMS Message Delivery), DUO56 (SMS Message Delivery), DUO58 (SMS Message Delivery), DUO60 (SMS Message Delivery), DUO62 (SMS Message Delivery), DUO63 (SMS Message Delivery), DUO65 (SMS Message Delivery), DUO72 (SMS Message Delivery), DUO73 (SMS Message Delivery), DUO74 (SMS Message Delivery), DUO75 (SMS Message Delivery), DUO76 (SMS Message Delivery), DUO77 (SMS Message Delivery), DUO78 (SMS Message Delivery), DUO79 (SMS Message Delivery), DUO80 (SMS Message Delivery), and DUO35 (SMS Message Delivery).