TeleSign incident

Quality degradation - United States (US) - ATT Mobility (310/016;030;150;170;280;380;410;670) 10 DLC - 8/11/26

Notice Resolved View vendor source →

TeleSign experienced a notice incident on August 11, 2026 affecting United States, lasting 1h 30m. The incident has been resolved; the full update timeline is below.

Started
Aug 11, 2026, 08:34 PM UTC
Resolved
Aug 11, 2026, 10:05 PM UTC
Duration
1h 30m
Detected by Pingoru
Aug 11, 2026, 08:34 PM UTC

Affected components

United States

Update timeline

  1. identified Aug 11, 2026, 08:34 PM UTC

    Date: 8/11/26 Start Time: 12:45PM PDT End Time: Ongoing Summary: We currently experience quality degradation toward Country United States (US) - ATT Mobility (310/016;030;150;170;280;380;410;670) for 10DLC. Customers that send SMS messages to United States (US) - ATT Mobility (310/016;030;150;170;280;380;410;670) users may notice a difficulties in message delivery for 10DLC. Our competent teams are working on solving this issue. 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 [email protected].

  2. resolved Aug 11, 2026, 10:05 PM UTC

    Start Time: 12:45 PM PDT - 8/11/26 End Time: 1:52 PM PDT - 8/11/26 We received notification that the network issues previously reported by ATT Mobility (310/016;030;150;170;280;380;410;670) from United States (US) have been resolved. ATT Mobility (310/016;030;150;170;280;380;410;670) end users should no longer experience delays receiving SMS messages as all services are back to functioning properly.