Report an Incident
Twilio Services
Issues related to Twilio’s Software
    External Connectivity
    Issues found outside of Twilio’s Network
      Zipwhip Gateway
      Issues related to Zipwhip's Services
        Scheduled maintenance
        System Metrics

        SMS Delivery Failures From Twilio Mexican Long Codes to AT&T Network in Mexico

        Incident Report for Twilio

        Resolved

        We have identified that this incident is directly related with some country regulations that we’ve implemented. This has already been added to our SMS Guidelines for this destination, and will be communicated to our impacted customers soon. Therefore, we’re now resolving the Status post.
        Posted Oct 19, 2023 - 13:32 PDT

        Update

        We continue to experience SMS delivery failures when sending messages from Twilio Mexican Long Codes to the AT&T network in Mexico for non-OTP messages and OTP messages containing a subset of UCS2 characters. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 24 hours or as soon as more information becomes available.
        Posted Oct 18, 2023 - 17:02 PDT

        Update

        We continue to experience SMS delivery failures when sending messages from Twilio Mexican Long Codes to the AT&T network in Mexico for non-OTP messages and OTP messages containing a subset of UCS2 characters. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 24 hours or as soon as more information becomes available.
        Posted Oct 18, 2023 - 04:11 PDT

        Update

        We continue to experience SMS delivery failures when sending messages from Twilio Mexican Long Codes to the AT&T network in Mexico for non-OTP messages and OTP messages containing a subset of UCS2 characters. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 24 hours or as soon as more information becomes available.
        Posted Oct 17, 2023 - 04:16 PDT

        Update

        We continue to experience SMS delivery failures when sending messages from Twilio Mexican Long Codes to the AT&T network in Mexico for non-OTP messages and OTP messages containing a subset of UCS2 characters. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 24 hours or as soon as more information becomes available.
        Posted Oct 16, 2023 - 04:25 PDT

        Update

        We continue to experience SMS delivery failures when sending messages from Twilio Mexican Long Codes to the AT&T network in Mexico for non-OTP messages and OTP messages containing a subset of UCS2 characters. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 24 hours or as soon as more information becomes available.
        Posted Oct 15, 2023 - 04:29 PDT

        Update

        We continue to experience SMS delivery failures when sending messages from Twilio Mexican Long Codes to the AT&T network in Mexico for non-OTP messages and OTP messages containing a subset of UCS2 characters. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 24 hours or as soon as more information becomes available.
        Posted Oct 14, 2023 - 04:40 PDT

        Update

        We continue to experience SMS delivery failures when sending messages from Twilio Mexican Long Codes to the AT&T network in Mexico for non OTP messages and OTP messages containing a subset of UCS2 characters. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 16 hours or as soon as more information becomes available.
        Posted Oct 13, 2023 - 13:01 PDT

        Update

        We continue to experience SMS delivery failures when sending messages from Twilio Mexican Long Codes to the AT&T network in Mexico for non OTP messages and OTP messages containing a subset of UCS2 characters. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 8 hours or as soon as more information becomes available.
        Posted Oct 13, 2023 - 05:04 PDT

        Update

        We continue to experience SMS delivery failures when sending messages from Twilio Mexican Long Codes to the AT&T network in Mexico for non OTP messages and OTP messages containing a subset of UCS2 characters. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.
        Posted Oct 13, 2023 - 01:05 PDT

        Update

        We are continuing to experience SMS delivery failures when sending messages from Twilio Mexican Long Codes to the AT&T network in Mexico for non OTP messages and OTP messages containing a subset of UCS2 characters. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.
        Posted Oct 12, 2023 - 23:05 PDT

        Investigating

        Our monitoring systems have detected a potential issue with SMS delivery when sending messages from Twilio Mexican Long Codes to the AT&T network in Mexico for non OTP messages and OTP messages containing a subset of UCS2 characters. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.
        Posted Oct 12, 2023 - 22:05 PDT
        This incident affected: CARRIER NETWORK (SMS Long Code, North America).
        ← Current Status Powered by Atlassian Statuspage