Outage in Telesign

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

Resolved Minor

December 03, 2025 - Started 4 months ago - Lasted 36 minutes
Official incident page

Incident Report

Issue: United States (US) - ATT Mobility (310/016;030;150;170;280;380;410;670) - 10DLC Quality degradation Start Time: 08:12 AM PST - 12/03/25 End Time: TBA Summary: We currently experience quality degradation (10DLC) toward United States (US) - ATT Mobility (310/016;030;150;170;280;380;410;670). SMS messages towards these operator(s) may face delays or difficulties in delivery. Telesign is engaged with carrier partners for updates on resolution. We'd like to apologize for any inconvenience and appreciate your patience during this service interruption. If you have any questions, please contact support@telesign.com. SF 01097848

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Latest Updates ( sorted recent to last )

RESOLVED 4 months ago - at 12/03/2025 05:10PM

Start Time: 08:12 AM PST - 12/03/25
End Time: 08:55 AM PST - 12/03/25

We received notification that the network issues previously reported by ATT Mobility 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 01097848

INVESTIGATING 4 months ago - at 12/03/2025 04:35PM

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

Start Time: 08:12 AM PST - 12/03/25
End Time: TBA

Summary:

We currently experience quality degradation (10DLC) toward United States (US) - ATT Mobility (310/016;030;150;170;280;380;410;670).
SMS messages towards these operator(s) may face delays or difficulties in delivery.

Telesign is engaged with carrier partners for updates on resolution. We'd like to apologize for any inconvenience and appreciate your patience during this service interruption.

If you have any questions, please contact support@telesign.com.

SF 01097848

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