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        Deliverability issue of DLRs for SMS messages to Sprint US phone numbers

        Incident Report for Twilio

        Resolved

        We have resolved the incident. All systems are operating normally.
        Posted May 07, 2018 - 07:03 PDT

        Update

        We are still continuing to work with our carrier partners to resolve this issue. Next update in four hours.
        Posted May 07, 2018 - 04:42 PDT

        Investigating

        We are experiencing a deliverability issue of DLRs for SMS messages sent to Sprint phone numbers in the US. SMS messages to Sprint phone numbers are successfully delivered but delivery reports, DLRs, are not. We are working with our carrier partners to resolve this issue. Next update within two hours.
        Posted May 07, 2018 - 02:52 PDT
        This incident affected: PROGRAMMABLE MESSAGING (SMS).