Twilio Outage History

Twilio experienced SMS delivery delays to Vodacom network subscribers in Tanzania for 29.4 hours. The incident affected Twilio's SMS service in the Middle East & Africa region, causing delayed message delivery to users on the Vodacom Tanzania network. The team identified the root cause and worked on a resolution, with service recovery observed and confirmed as fully operational.

Twilio experienced SMS delivery delays when sending messages to Airtel Nigeria customers, lasting 6.7 hours. The issue affected SMS services in the Middle East & Africa region, with engineers working alongside carrier partners to resolve the delivery problems. The incident was fully resolved after monitoring showed complete recovery of normal SMS delivery times.

Twilio experienced an issue where some customer accounts failed to reactivate after successfully adding funds, affecting a small set of users for 22 minutes. Engineers investigated and determined the impact was limited, with affected customers contacted individually. All systems were restored to full operational status.

Twilio customers experienced User Authentication Identity API errors specifically for XL Axiata in Indonesia, affecting the Verify Silent Network Auth component. The team implemented a fix and monitored system stability before fully resolving the incident after 3.3 hours.

Twilio experienced SMS delivery delays to Telekom network subscribers in South Africa for 8.5 hours. The issue affected SMS services in the Middle East & Africa region, preventing timely message delivery to users on the Telekom network. Engineers worked with carrier partners to resolve the delivery delays, and service was fully restored after monitoring confirmed stable SMS delivery.

A small subset of Twilio accounts were erroneously suspended, preventing affected users from accessing their services. The incident lasted 3.4 hours before all affected accounts were reactivated and normal operations resumed. Twilio resolved the suspension error and confirmed systems were operating normally.

Twilio experienced SMS delivery receipt delays for messages sent to Vodacom network subscribers in South Africa, lasting 3.8 hours. While SMS messages were still being delivered successfully, customers experienced delays in receiving delivery confirmation receipts. The issue was resolved after Twilio observed gradual recovery and confirmed stable service restoration.

Twilio experienced SMS delivery delays and failures to Evatis network subscribers in Djibouti for 4.7 hours, affecting customers sending messages to that specific carrier network. Engineers worked with their carrier partner to address the connectivity issues. The service was restored after observing recovery and monitoring for stability.

Twilio experienced SMS delivery delays affecting a subset of long codes in Portugal, impacting customers' ability to send and receive text messages through the service. The issue affected SMS services in the Europe region and persisted for 5 hours while the team investigated and worked on resolution. The service was fully restored after monitoring confirmed recovery from the delivery delays.

Twilio Voice experienced an issue where some customers in India received 480 error responses when making outbound calls, lasting approximately 9 days. The problem was identified as a carrier partner issue that required coordination with external providers to resolve. The issue has been fully resolved and outbound calls are now operating normally.