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        SMS Delivery Report Delays to US Cellular

        Incident Report for Twilio

        Resolved

        The issue affecting delivery report delays when sending to US Cellular from a small subset of Twilio short codes has been resolved, and the service is functioning normally at this time.
        Posted Mar 04, 2022 - 13:17 PST

        Monitoring

        We are observing recovery in delivery report delays when sending to US Cellular from a small subset of Twilio short codes. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.
        Posted Mar 04, 2022 - 11:30 PST

        Update

        We are still experiencing delays in receiving message delivery reports when sending to US Cellular from a small subset of Twilio short codes. 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 Mar 04, 2022 - 10:07 PST

        Update

        We are experiencing delays in receiving message delivery reports when sending to US Cellular from a small subset of Twilio short codes. 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 Mar 04, 2022 - 09:14 PST

        Investigating

        Our monitoring systems have detected a potential issue with delivery receipt delays to US Cellular network from a subset of Twilio short codes. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.
        Posted Mar 04, 2022 - 08:52 PST