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        SMS Delivery Report Delays from a Subset of Twilio Toll-Free Numbers to Verizon United States

        Incident Report for Twilio

        Resolved

        The incident has been resolved and SMS delivery receipts from a subset of Twilio Toll-Free Numbers to Verizon network subscribers in the United States are operating normally.
        Posted Jul 27, 2026 - 23:59 PDT

        Monitoring

        Twilio customers may be experiencing SMS delivery report delays from a subset of Twilio Toll-Free Numbers to Verizon 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 Jul 27, 2026 - 22:17 PDT

        Update

        Twilio customers may be experiencing SMS delivery report delays from a subset of Twilio Toll-Free Numbers to Verizon network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
        Posted Jul 27, 2026 - 20:33 PDT

        Identified

        Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Long Codes and Toll-Free Numbers to Verizon network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
        Posted Jul 27, 2026 - 19:22 PDT
        This incident affected: ZIPWHIP MESSAGING (SMS Toll-Free, North America) and CARRIER NETWORK (SMS Toll-Free, North America).