Twilio Outage History

Twilio experienced voice call failures affecting network subscribers attempting to call Twilio Spain phone numbers, impacting Voice services in the Europe region for 11.1 hours. The team identified the root cause and worked on a resolution, with service gradually recovering to a subset of Spain numbers before full restoration. The issue was fully resolved and service returned to normal operation.

Twilio experienced SMS delivery receipt delays for messages sent from alphanumeric sender IDs to MobiFone network subscribers in Vietnam, lasting 9.7 hours. While SMS messages were still being delivered successfully, customers experienced significant delays in receiving delivery confirmation reports. The team identified the root cause and monitored service recovery before fully resolving the issue.

Twilio experienced SMS delivery delays to Beeline network subscribers in Kazakhstan, affecting customers sending messages to that specific carrier. The issue impacted SMS services in the APAC region for 3.7 hours. The incident was resolved and SMS delivery to Beeline Kazakhstan returned to normal operation.

Twilio experienced delays in processing Hosted Numbers order completions for 41 minutes. The issue affected customers waiting for their hosted phone number orders to be finalized. The service was restored and Hosted Numbers returned to normal operation.

Twilio experienced performance issues with WhatsApp Business Profile management that prevented a subset of users from updating their profiles through both the API and Twilio Console. The incident affected the Messaging Channels component and lasted 20.2 hours while engineers investigated and worked to resolve the problem. The service was restored to normal operation and confirmed stable after a monitoring period.

Twilio experienced SMS delivery delays from a subset of short codes to subscribers on Cellcom and multiple other US networks, lasting approximately 80 hours. The issue affected Twilio customers sending SMS messages through short codes to these network subscribers across North America. Twilio's team identified the root cause and worked to resolve the delivery delays.

Twilio experienced SMS delivery delays to T-Mobile network subscribers in the Netherlands for 7.8 hours. The issue affected Twilio customers sending SMS messages through the European SMS service to T-Mobile Netherlands users. The service gradually recovered and was fully resolved, with SMS delivery returning to normal operations.

Twilio's Programmable Video service experienced an issue where video recordings failed to save when the associated room names contained Unicode characters. The problem affected the Recordings component and prevented users from successfully storing video recordings with non-ASCII room names. Engineers implemented a fix after 1.9 hours, restoring normal recording functionality for all new recordings.

Twilio experienced SMS delivery delays from a subset of phone numbers to Australia, affecting MMS and APAC components for 12 minutes between 15:53 and 16:05 PST on March 26, 2026. The service degradation impacted customers sending SMS messages to Australian recipients during this timeframe. The issue was investigated and resolved within 12 minutes of onset.

Twilio experienced SMS delivery failures to Viettel network subscribers in Vietnam for 5.3 hours, affecting customers' ability to send text messages to users on that network. The incident impacted Twilio's SMS service in the APAC region. Service recovery was observed and the team moved to monitoring mode to ensure stability.