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Outage in Zipwhip

SMS Delivery Failure to Twilio Phone Numbers in Mexico via Subset of Shortcodes

Resolved Minor
December 20, 2025 - Started 3 months ago - Lasted 1 day
Official incident page

Incident Report

Our monitoring systems have detected a potential issue SMS delivery delays to Twilio phone numbers in Mexico. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

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Latest Updates ( sorted recent to last )
RESOLVED 3 months ago - at 12/21/2025 08:09PM

We are no longer experiencing SMS delivery failures to Twilio phone numbers in Mexico via a subset of short codes.. This incident has been resolved.

MONITORING 3 months ago - at 12/21/2025 03:56PM

We continue observing successful SMS delivery to Twilio phone numbers in Mexico via a subset of short codes. We will continue to monitor to ensure full service recovery. We expect to provide another update in 4 hours or as soon as more information becomes available.

MONITORING 3 months ago - at 12/21/2025 01:56PM

We are observing successful SMS delivery to Twilio phone numbers in Mexico via a subset of short codes. We will continue to monitor to ensure full service recovery. We expect to provide another update in 2 hours or as soon as more information becomes available.

INVESTIGATING 3 months ago - at 12/21/2025 09:35AM

We are experiencing SMS delivery failures to Twilio phone numbers in Mexico via a subset of shortcodes. 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.

INVESTIGATING 3 months ago - at 12/21/2025 02:13AM

We are experiencing SMS delivery failures to Twilio phone numbers in Mexico via a subset of shortcodes. 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.

INVESTIGATING 3 months ago - at 12/21/2025 01:10AM

We continue to experience SMS delivery delays when sending messages to Twilio phone numbers in Mexico via a subset of shortcodes. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.

INVESTIGATING 3 months ago - at 12/20/2025 09:23PM

We continue to experience SMS delivery delays when sending messages to Twilio phone numbers in Mexico via a subset of shortcodes. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.

INVESTIGATING 3 months ago - at 12/20/2025 07:31PM

We keep experiencing SMS delivery delays when sending messages to Twilio phone numbers in Mexico via subset of shortcodes. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

INVESTIGATING 3 months ago - at 12/20/2025 06:35PM

We are experiencing SMS delivery delays when sending messages to Twilio phone numbers in Mexico via subset of shortcodes. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

INVESTIGATING 3 months ago - at 12/20/2025 06:25PM

Our monitoring systems have detected a potential issue SMS delivery delays to Twilio phone numbers in Mexico. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

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