Twilio Outage History

Twilio experienced voice call failures affecting inbound calls from Lithuanian network subscribers to Twilio Lithuania phone numbers, impacting the Voice service in Europe. The issue lasted 5.5 hours before being fully resolved, with service recovery observed during monitoring before complete restoration.

Twilio experienced SMS delivery delays and failures from a subset of long codes to Vodafone network subscribers in Italy for 19.4 hours. The incident affected Twilio's SMS service in the Europe region, preventing reliable message delivery to Vodafone Italy customers. The team identified the root cause and implemented a fix, with service recovery observed before full resolution was confirmed.

Twilio experienced a 13.4-hour billing system issue where customer accounts with positive balances failed to automatically reactivate after successful payments, forcing users to contact support for manual reactivation. The problem affected Twilio's automatic account reactivation process, preventing customers from accessing services despite having paid their bills. Twilio identified the root cause and restored normal automatic reactivation functionality.

Twilio experienced SMS delivery receipt delays for messages sent to DigiTel network subscribers in Venezuela, lasting 5.3 hours. While SMS messages were still being delivered successfully, customers faced delays in receiving delivery confirmation receipts. The issue was resolved and SMS delivery receipts returned to normal operation.

Twilio's billing endpoints experienced issues returning 503 responses, affecting users' ability to access billing functionality. The incident was detected by monitoring systems and lasted 6 minutes before being resolved by engineering teams.

Twilio experienced issues with WhatsApp Sender Onboarding that prevented new senders from completing the registration process. The incident affected the Messaging Channels component and lasted approximately 3.3 hours. Engineers confirmed full recovery and resolved the incident.

Twilio's WhatsApp channel for Verify experienced errors and message delays for 4.1 hours, affecting the Messaging Channels component. Engineers worked with the provider to resolve the issue and confirmed full recovery after monitoring the service's return to normal operation.

Twilio experienced MMS delivery delays to T-Mobile network subscribers in the United States, affecting customers' multimedia messaging capabilities. The incident was classified as minor and lasted 7 minutes. The team actively investigated the issue, though no specific resolution details were provided in the available updates.

Twilio experienced voice call failures affecting network subscribers attempting to reach a subset of US toll-free numbers, impacting Twilio customers' voice services in North America. The issue prevented incoming calls from completing to these toll-free numbers during the 7-minute incident. Twilio resolved the problem and restored normal service functionality.

Twilio experienced SMS delivery failures affecting a subset of Denmark phone numbers, where messages from network subscribers were not reaching their intended recipients. The incident impacted Twilio's SMS service in the Europe region for 6.9 hours. The service was restored to normal operation after monitoring confirmed recovery of SMS delivery functionality.