Twilio Outage History

Twilio experienced SMS delivery delays affecting multiple networks across APAC and Middle East & Africa regions, particularly impacting Malaysia and multiple African countries. The incident lasted 6.2 hours, during which customers faced delayed message delivery to network subscribers in these regions. The team identified the root cause and gradually restored service, with full resolution confirmed and normal SMS delivery operations resumed.

Twilio experienced SMS delivery delays lasting 4.5 hours affecting messages sent from a subset of Twilio Short Codes to ISP Telecom network subscribers in the United States. The team identified the root cause and implemented a fix, with service recovery observed and monitored before full resolution. Normal SMS delivery operations were restored to all affected Short Codes and ISP Telecom subscribers.

Twilio experienced MMS delivery delays from a subset of long codes to Altice network subscribers in the United States for 6.6 hours. The issue affected MMS Long Code services in North America, preventing timely message delivery to customers on the Altice network. The incident was resolved after monitoring showed recovery of normal MMS delivery operations.

Twilio's Programmable Messaging API and Verify API experienced elevated HTTP 5xx errors for approximately 2.4 hours on March 5th, 2026, from 11:31 PST to around 14:16 PST. The incident caused partial service degradation, preventing customers from successfully using these APIs during the affected period. Engineers investigated and resolved the issue, with services returning to normal operation by 14:16 PST.

Twilio experienced SMS delivery delays to Orange network subscribers in Cameroon for 4.3 hours, affecting the SMS service in the Middle East & Africa region. The engineering team identified the cause and worked with their carrier partner to resolve the connectivity issue. Service was restored to normal operation after monitoring confirmed recovery stability.

Twilio experienced an issue where WhatsApp phone numbers were not displaying for senders created via the Senders API, affecting the Messaging Channels component. The problem lasted 4.2 hours before engineers resolved the display issue and restored normal service operation.

Twilio's Flex Admin Console in the US experienced latency issues when creating or updating Topics and Disposition Codes, lasting 13.4 hours. The service interruption affected the Flex Admin Console component and was resolved after monitoring confirmed service stability recovery.

Twilio experienced SMS delivery receipt delays for messages sent to Drillisch 1&1 network subscribers in Germany, affecting SMS services in Europe for 1.4 hours. While SMS messages were still being delivered successfully, customers experienced delays in receiving delivery confirmation receipts. The issue was resolved through monitoring and investigation, with service recovery observed and stability being monitored.

Twilio experienced SMS delivery delays to Yemen Mobile network subscribers in Yemen for 2.7 hours. The issue affected SMS services in the Middle East & Africa region, causing delays in message delivery to users on the Yemen Mobile network. The incident was resolved and SMS delivery returned to normal operation.

Twilio experienced MMS delivery delays lasting 9 hours when sending messages from a subset of their Long Codes to Altice network subscribers in the United States. The issue affected MMS Long Code services in North America, causing delayed message delivery for customers trying to reach Altice mobile users. Twilio identified the root cause and resolved the incident, with service recovery observed before full resolution was confirmed.