Outage in Telesign
Quality degradation - United States (US) - ATT Mobility (10DLC) - 11/11/26
Resolved MinorIncident Report
Summary AI Generated
Telesign experienced SMS delivery degradation affecting AT&T Mobility 10DLC traffic in the United States, beginning at 4:15 PM PDT on November 11, 2026. The incident lasted approximately 4 hours and 16 minutes, during which customers sending SMS messages to AT&T Mobility end users encountered delivery difficulties. The underlying network issue was resolved by 8:31 PM PDT, with all services restored to normal operation.
Date: 11/11/26
Start Time: 4:15 PM PDT
End Time: Ongoing
Summary:
We currently experience quality degradation toward United States (US) - ATT Mobility (10DLC only). Customers that send SMS messages to United States (US) - ATT Mobility (10DLC) users may notice a difficulties in message delivery.
We'd like to apologize for any inconvenience and appreciate your patience during this service window.
If you have any questions, please contact us at support@telesign.com.
SF 01270240
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Latest Updates ( sorted recent to last )
RESOLVED
1 day ago - at 11/12/2026 05:07AM
Start Time: 04:15 PM PDT - 11/11/26
End Time: 08:31 PM PDT - 11/11/26
Network issues previously reported for ATT Mobility (10DLC only) from United States (US) have been resolved. ATT Mobility end users should no longer experience delays receiving SMS messages as all services are back to functioning properly.
SF 01270240
IDENTIFIED
1 day ago - at 11/12/2026 12:53AM
Date: 11/11/26
Start Time: 4:15 PM PDT
End Time: Ongoing
Summary:
We currently experience quality degradation toward United States (US) - ATT Mobility (10DLC only). Customers that send SMS messages to United States (US) - ATT Mobility (10DLC) users may notice a difficulties in message delivery.
We'd like to apologize for any inconvenience and appreciate your patience during this service window.
If you have any questions, please contact us at support@telesign.com.
SF 01270240
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