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        SMS Delays to AT&T from US Shortcodes

        Incident Report for Twilio

        Resolved

        This incident has been resolved.
        Posted Jan 06, 2019 - 15:31 PST

        Monitoring

        We are starting to see recovery of traffic to AT&T handsets. Our engineering team will continue to monitor the service to ensure that the issue has been fully resolved.
        Posted Jan 06, 2019 - 13:56 PST

        Update

        Our carrier partner has informed us that messages are being queued and should therefore be delivered once the underlying issue with delivery to AT&T handsets is resolved. Twilio’s engineers continue to work with our carrier partner to resolve the underlying issue. We will provide an update as soon as we have more information.
        Posted Jan 06, 2019 - 10:06 PST

        Investigating

        We are observing elevated delivery delays towards AT&T handsets from a subset of Twilio shortcodes. Our engineering team is actively working with our carrier partner to resolve the issue. We will provide an update as soon as possible.
        Posted Jan 06, 2019 - 08:35 PST
        This incident affected: CARRIER NETWORK (SMS Short Code, North America).