Twilio Outage History

Twilio experienced SMS delivery failures and delays between their short codes/numbers and multiple mobile networks in France, affecting customers' ability to send SMS messages in that region. The incident lasted 7.3 hours and impacted Twilio's SMS service across European operations. The service was restored to normal operation after the team observed recovery in SMS delivery and confirmed stable service.

Twilio experienced SMS delivery delays from Twilio Phone Numbers to MTN network subscribers in Zambia, affecting SMS services in the Middle East & Africa region. The team identified the root cause and implemented a fix after monitoring service recovery. The incident was fully resolved after 3.5 hours with SMS delivery returning to normal operations.

Twilio customers experienced SMS delivery delays and failures between a subset of Twilio phone numbers and multiple networks in the United Kingdom. The issue affected SMS services in the Europe region for approximately 5 minutes. The incident was resolved and SMS delivery returned to normal operation.

Twilio experienced SMS delivery delays to the Orange network in Botswana when using a subset of alphanumeric sender IDs. The issue affected SMS services in the Middle East & Africa region for approximately 1.1 hours before being resolved.

Twilio customers experienced voice call post dial delays when calling from a subset of Twilio phone numbers to network subscribers in Ecuador. The issue affected Twilio's Voice service in the Latin America region for 10 hours. Twilio identified the root cause and resolved the issue, with service recovery observed and monitored for stability.

Twilio experienced a 6-minute service disruption affecting the Conference API, preventing accounts from adding participants to conferences and modifying participant states (hold, unhold, mute, unmute). The incident was classified as minor and lasted only 6 minutes before resolution.

Twilio's Flex Agent Copilot experienced errors when generating Conversation Wrap Up Notes for 2.7 hours due to upstream performance degradation with a vendor. The issue affected the Flex Agent Desktop component, preventing agents from properly generating conversation summaries. Engineers worked with the vendor to resolve the performance issues, and services returned to normal operation after monitoring confirmed the fix was stable.

Twilio experienced SMS and MMS delivery delays from their phone numbers to Verizon network subscribers in the United States for 36.8 hours. The issue affected all North American SMS and MMS services including toll-free, long code, and short code numbers, with SMS delivery recovering first while MMS delays persisted longer. The incident was resolved after Twilio's engineering team identified the root cause and implemented a fix, with service returning to normal operations.

Twilio experienced delays in their Conference Insights Pipeline Voice Insights service for 47 minutes. Engineers identified the issue and deployed a fix to restore normal operations. The Voice Insights component was affected during this minor service disruption.

Twilio experienced delays in conference recording availability for 1.5 hours, preventing users from accessing their conference recordings in a timely manner. Engineers investigated the issue and restored normal operations. The service was monitored for stability before being declared fully resolved.