Incident detail

SMS Delivery Failures from a Subset of Twilio Short Codes to Altan Redes Mexico

Resolved incidentMinor

Provider

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Jul 20, 2026, 4:35 AM UTC to Jul 21, 2026, 9:06 PM UTC

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Timeline

Incident updates

Updates are normalized from the official source chronology so timeline changes remain easy to scan.

Investigating
Jul 20, 2026, 4:35 AM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Short Codes to Altan Redes network subscribers in Mexico. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
Investigating
Jul 20, 2026, 5:36 AM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Short Codes to Altan Redes network subscribers in Mexico. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
Investigating
Jul 20, 2026, 7:37 AM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Short Codes to Altan Redes network subscribers in Mexico. Our team is actively investigating this issue. We will provide another update in 4 hours or as soon as more information becomes available.
Investigating
Jul 20, 2026, 11:37 AM UTC
Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Short Codes to Altan Redes network subscribers in Mexico. Our team is actively investigating this issue. We will provide another update in 8 hours or as soon as more information becomes available.
Monitoring
Jul 20, 2026, 2:54 PM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Altan Redes network subscribers in Mexico and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
Monitoring
Jul 20, 2026, 4:57 PM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Altan Redes network subscribers in Mexico and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
Monitoring
Jul 20, 2026, 8:58 PM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Altan Redes network subscribers in Mexico and are monitoring service stability. We will provide another update in 8 hours or as soon as more information becomes available.
Monitoring
Jul 21, 2026, 5:02 AM UTC
We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to Altan Redes network subscribers in Mexico and are monitoring service stability. We will provide another update in 16 hours or as soon as more information becomes available.
Resolved
Jul 21, 2026, 9:06 PM UTC
The incident has been resolved and SMS delivery from a subset of Twilio Short Codes to Altan Redes network subscribers in Mexico is operating normally.