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        Voice Call Failures from a Subset of Twilio Phone Numbers to Switzerland

        Incident Report for Twilio

        Resolved

        The incident has been resolved and voice calls from a subset of Twilio Phone Numbers to network subscribers in Switzerland are operating normally.
        Posted Sep 05, 2026 - 15:04 PDT

        Update

        We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in Switzerland and are monitoring service stability. We will provide another update in 8 hours or as soon as more information becomes available.
        Posted Sep 05, 2026 - 14:40 PDT

        Update

        We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in Switzerland and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
        Posted Sep 05, 2026 - 10:34 PDT

        Monitoring

        We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in Switzerland and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
        Posted Sep 05, 2026 - 08:28 PDT

        Update

        Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to network subscribers in Switzerland. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
        Posted Sep 05, 2026 - 01:24 PDT

        Update

        Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to network subscribers in Switzerland. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
        Posted Sep 04, 2026 - 21:18 PDT

        Update

        Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to network subscribers in Switzerland. 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 Sep 04, 2026 - 19:18 PDT

        Identified

        Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to network subscribers in Switzerland. 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 Sep 04, 2026 - 18:18 PDT

        Update

        Twilio customers may be experiencing voice call failures from a subset of Twilio Toll-Free, Landline, and Mobile Phone Numbers to network subscribers on multiple networks in multiple countries. Our team is actively investigating this issue. We will provide another update in 4 hours or as soon as more information becomes available.
        Posted Sep 04, 2026 - 16:56 PDT

        Update

        Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to network subscribers in the Netherlands, Switzerland, and Iceland. Our team is actively investigating this issue. We will provide another update in 4 hours or as soon as more information becomes available.
        Posted Sep 04, 2026 - 16:18 PDT

        Update

        Twilio customers may be experiencing voice call failures from a subset of Twilio Toll-Free Numbers, Landline Numbers, and Mobile Numbers to network subscribers on multiple networks in multiple countries. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
        Posted Sep 04, 2026 - 14:55 PDT

        Investigating

        Twilio customers may be experiencing voice call failures from a subset of Twilio Toll-Free, Landline, and Mobile Phone Numbers to network subscribers on multiple networks in multiple countries. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
        Posted Sep 04, 2026 - 13:55 PDT
        This incident affected: CARRIER NETWORK (Voice, Europe).