Twilio Outage History

Twilio experienced SMS delivery failures to Beeline network subscribers in Kazakhstan, affecting customers' ability to send text messages to that specific carrier. The incident impacted Twilio's SMS service in the APAC region for 7.3 hours. The issue was identified and resolved, with SMS delivery to Beeline Kazakhstan subscribers restored to normal operation.

Twilio experienced SMS delivery failures to Beeline network subscribers in Kazakhstan for 4.5 hours, affecting customers' ability to send text messages to that specific carrier. The team identified the root cause and worked on a resolution, with service recovery observed before full restoration. SMS delivery to Beeline Kazakhstan returned to normal operation after monitoring confirmed service stability.

Twilio experienced SMS delivery delays to Shelcomm network subscribers in the United States for 4.1 hours. The issue affected customers sending SMS messages through Twilio's service to recipients on the Shelcomm network. Twilio's team identified the root cause, implemented a fix, and confirmed full service restoration after monitoring the recovery.

Twilio experienced OhSip E2E test failures that were detected by their monitoring systems. The incident was classified as minor and lasted 20 minutes. Engineers investigated the issue after being alerted by the monitoring systems.

Twilio experienced SMS delivery failures from a subset of Long Codes and Alphanumeric Sender IDs to Sudani One network subscribers in Sudan for 19.7 hours. The incident affected SMS services in the Middle East & Africa region, preventing customers from successfully delivering messages to this specific carrier network. The issue was identified and resolved, with SMS delivery returning to normal operations.

Twilio experienced SMS delivery failures affecting messages sent from Brazilian network subscribers to a subset of Twilio phone numbers in Brazil. The issue impacted SMS services in the Latin America region for 2.8 hours. The incident was resolved and SMS delivery returned to normal operation.

Twilio experienced SMS delivery failures from a subset of short codes to multiple network subscribers in Brazil, affecting SMS services in Latin America. The incident lasted 37 minutes while the team investigated the delivery issues. SMS delivery between Twilio short codes, long codes, and affected Brazilian networks was restored to normal operation.

Twilio experienced SMS delivery delays to Telefonica network subscribers in Costa Rica for 4.4 hours. The issue affected SMS services in the Latin America region, causing delayed message delivery for customers sending to that specific carrier network. The incident was resolved after monitoring showed recovery in SMS delivery from both Long Codes and Alphanumeric Sender IDs, with service returning to normal operations.

Twilio experienced SMS delivery delays to Datora network subscribers in Brazil for 6.1 hours. The issue affected SMS services in the Latin America region, causing delayed message delivery for customers sending to this specific Brazilian network. Twilio's team investigated and resolved the delivery delays.

Twilio's monitoring systems detected a potential issue with alarm event delivery, prompting an investigation by their engineering team. After a 22-minute investigation, engineers determined there was no actual customer impact and all systems remained operational throughout the incident.