Quality degradation - United States (US) - ATT Mobility (10DLC) - 10/15/25

Date: 10/15/25 Start Time: 6AM PST End Time: Ongoing Summary: We currently experience 10DLC quality degradation toward United States (US) - ATT Mobility. Customers that send 10DLC messages to ATT Mobility users may notice a difficulties in message delivery. Customers that send SCs should not be affected. 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 support@telesign.com.