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        SMS Delivery Degradation Toward AT&T US (311-180) via A Subset of ShortCodes

        Incident Report for Twilio

        Resolved

        This incident has been resolved.
        Posted Dec 22, 2019 - 00:47 PST

        Monitoring

        We are observing recovery in SMS delivery toward the AT&T network via the affected ShortCode. We will continue to monitor and provide an update when the issue is fully resolved.
        Posted Dec 22, 2019 - 00:14 PST

        Investigating

        We are observing SMS delivery degradation toward AT&T network via a minor subset of ShortCodes in the US. We are working with our carrier partner to resolve the issue and will provide an update as soon as we have more information.
        Posted Dec 21, 2019 - 19:29 PST
        This incident affected: CARRIER NETWORK (SMS Short Code, North America).