Current answer
Bandwidth experienced a minor incident: Outbound SMS Incident - T-Mobile. ServiceAlert observed recovery on Sep 16, 2026.
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Incident Lifecycle
Affected Components
SMS Messaging (SMPP)
Incident Timeline
Identified
This incident has been identified as an off network incident. T-Mobile is working to restore expected delivery results. Updates will be provided as they become available.
Sep 15, 2026 at 6:52 PM UTC
Identified
This incident has been identified as an off network incident. T-Mobile is working to restore expected delivery results. Updates will be provided as they become available.
Sep 14, 2026 at 11:46 PM UTC
Investigating
Bandwidth teams are investigating an off network condition where outbound SMS messages to T-Mobile are receiving an unexpected error code of 4740. These messages may not complete as expected.
Sep 14, 2026 at 6:31 PM UTC
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