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        SMS Delivery Failure to Multiple Networks in China via a Subset of Alphanumeric Sender IDs

        Incident Report for Twilio

        Resolved

        We are no longer experiencing SMS delivery failures to multiple networks in China via a Subset of Alphanumeric Sender IDs. This incident has been resolved.
        Posted Apr 05, 2024 - 02:34 PDT

        Monitoring

        We are observing successful SMS delivery to multiple networks in China via a Subset of Alphanumeric Sender IDs. We will continue to monitor to ensure full service recovery. We expect to provide another update in 2 hours or as soon as more information becomes available.
        Posted Apr 05, 2024 - 00:37 PDT

        Update

        We are experiencing SMS delivery failures to multiple networks in China via a Subset of Alphanumeric Sender IDs. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 16 hours or as soon as more information becomes available.
        Posted Apr 05, 2024 - 00:29 PDT

        Update

        We are experiencing SMS delivery failures to multiple networks in China via a Subset of Alphanumeric Sender IDs. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 8 hours or as soon as more information becomes available.
        Posted Apr 04, 2024 - 14:37 PDT

        Update

        We are experiencing SMS delivery failures to multiple networks in China via a Subset of Alphanumeric Sender IDs. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.
        Posted Apr 04, 2024 - 10:10 PDT

        Update

        We are experiencing SMS delivery failures to multiple networks in China via a Subset of Alphanumeric Sender IDs. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.
        Posted Apr 04, 2024 - 08:07 PDT

        Investigating

        We are experiencing SMS delivery failures to multiple networks in China via a Subset of Alphanumeric Sender IDs. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.
        Posted Apr 04, 2024 - 07:17 PDT
        This incident affected: CARRIER NETWORK (SMS, APAC).
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