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        SMS Delivery Delays from a Subset of Twilio Long Codes to AT&T United States

        Incident Report for Twilio

        Resolved

        The incident has been resolved and SMS delivery from a subset of Twilio Long Codes to AT&T network subscribers in the United States is operating normally.
        Posted Mar 05, 2026 - 22:36 PST

        Monitoring

        We have observed a recovery in SMS delivery from a subset of Twilio Long Codes to AT&T network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
        Posted Mar 05, 2026 - 20:46 PST

        Investigating

        Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Long Codes to AT&T network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
        Posted Mar 05, 2026 - 20:15 PST
        This incident affected: CARRIER NETWORK (SMS Long Code, North America).
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