Twilio Outage History

Twilio experienced SMS delivery delays affecting a subset of phone numbers when sending messages to multiple networks across multiple countries for 6.7 hours. The issue caused delayed message delivery for customers using the affected Twilio numbers. The incident was resolved after the team observed recovery in SMS delivery and confirmed normal operations were restored.

Twilio experienced an RCS (Rich Communication Services) delivery failure issue that affected a small subset of customers for 28 minutes. The company's monitoring systems detected the problem and engineers investigated the root cause. The issue was resolved with affected customers being contacted individually, and all systems returned to full operational status.

Twilio experienced SMS delivery delays lasting 2.8 hours affecting messages sent from a subset of Twilio Short Codes to ISP Telecom network subscribers in the United States. The impact was determined to be limited to a small set of customers who were contacted individually to address concerns. The issue was fully resolved with all systems returning to operational status.

Twilio experienced an issue with User Authentication Identity Silent Network Auth (SNA) missing redirects specifically for Verizon customers in the United States, affecting the Verify Silent Network Auth component. The incident lasted 3.9 hours before Twilio's team identified the cause and implemented a fix. Service was restored to normal operation after a monitoring period to ensure stability.

Twilio experienced SMS delivery delays to Orange network subscribers in Cameroon for approximately 30 hours. The issue affected Twilio customers sending SMS messages to recipients on the Orange Cameroon network, causing delayed message delivery. Twilio's team identified the root cause and successfully resolved the incident, with service recovery observed before full resolution was confirmed.

Twilio experienced SMS delivery delays from a subset of short codes to AT&T network subscribers in the United States for 1.8 hours. The issue affected SMS Short Code services in North America, with engineers working with carrier partners to resolve the problem. The incident was resolved after investigation determined the impact was limited to a small set of customers who were contacted individually.

Twilio experienced SMS delivery delays when sending messages to Entel customers in Chile, lasting 6.5 hours. The issue affected SMS services in the Latin America region and was caused by problems with Twilio's carrier partner. Engineers worked with the carrier partner to resolve the delivery delays, and the service was fully restored.

Twilio experienced a 1.5-hour incident where some customers were not receiving status callbacks for their outbound WhatsApp messages through their configured webhooks. The issue affected the Messaging Channels component and prevented customers from getting delivery status updates for their WhatsApp communications. Engineers investigated and resolved the problem, with status callback webhooks for WhatsApp returning to normal operation.

Twilio's Conversations service experienced issues where customers were not receiving inbound messages for approximately 2.6 hours. The incident affected the Conversations component, preventing message delivery to users. Engineers identified and resolved the underlying issue, with service recovery beginning around 11:37 AM and full resolution confirmed by 12:27 PM.

Twilio customers experienced errors when trying to access various pages in the Twilio Console for 2.1 hours. Engineers implemented a fix and monitored the system before confirming the Console was functioning normally and the issue was fully resolved.