Resolved after 1 day 5 hours, affecting SMS Messaging (SMPP), on September 14, 2026.
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.
Affected components
Update timeline
- investigating Sep 14, 2026, 06:31 PM UTC
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.
- identified Sep 14, 2026, 11:46 PM UTC
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.
- identified Sep 15, 2026, 06:52 PM UTC
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.
- resolved Sep 16, 2026, 12:09 AM UTC
This incident has been resolved.
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