Twilio Outage History

Twilio's User Authentication Identity API experienced errors in Canada for 9.1 hours, affecting multiple services including Verify Silent Network Auth, Lookup Identity Match, Lookup Line Type Intelligence, Lookup SIM Swap, and Legacy Identity MatchAndAttributes. The team identified the root cause and implemented a fix, with service recovery observed before full resolution was confirmed.

Twilio experienced intermittent issues with accessing the Explore Products Page in their 1Console platform for 1.9 hours. The incident affected the Console component, preventing users from reliably accessing the product exploration functionality. The issue was resolved and 1Console returned to normal operation.

Twilio experienced voice call failures lasting 10.8 hours where calls from Twilio phone numbers to Claro network subscribers in Puerto Rico were failing. The issue affected Twilio's Voice service in the Latin America region. The problem was identified and resolved, with service returning to normal functionality.

Twilio experienced a 7-minute disruption to their Conference service where some users were unable to hear each other during calls. The audio issue affected the Conference component and prevented proper communication between participants. The problem was identified and resolved, with Conference service returning to normal operation.

Twilio experienced SMS delivery delays and failures to ISP Telecom network subscribers in the United States, affecting SMS Long Code services in North America for 9.2 hours. After investigation, Twilio determined there was no noticeable customer impact and all systems returned to operational status.

Twilio experienced voice call failures from Twilio phone numbers to Telcel/Radiomovil network subscribers in Mexico, resulting in SIP 484 errors that affected outbound calling capabilities. The incident impacted Twilio's Voice service in North America for 46.6 hours while engineers worked with carrier partners to resolve the connectivity issue. Service was restored after engineers observed recovery in call completion rates and confirmed stable operations.

Twilio customers experienced SMS delivery receipt delays when sending messages from certain Twilio Short Codes to Viaero network subscribers in the United States, though message delivery itself continued to succeed. The issue affected SMS Short Code services in North America for 36.6 hours before being resolved. Twilio identified the root cause and monitored service recovery before confirming full resolution of the delivery receipt delays.

Twilio experienced voice call audio quality degradation affecting a subset of their Australia and New Zealand phone numbers when connecting to multiple network subscribers in those regions. The issue impacted customers making voice calls through affected Twilio phone numbers, resulting in poor audio quality during conversations. After 13.1 hours of investigation and monitoring, the service was fully restored and voice calls returned to normal operation.

Twilio's SMPP API experienced an issue that impacted delivery receipts for a small set of customers, while outgoing MT messages remained unaffected. The incident lasted 51 minutes as engineers investigated the problem. The issue was resolved and affected customers were contacted individually to address any concerns.

Twilio Flex experienced intermittent authentication failures for 1.4 hours, preventing users from accessing the platform. The Flex Application Platform was affected, causing login and access issues for customers. The authentication issue was resolved and service returned to normal operation.