Twilio Outage History

Twilio's User Authentication Identity Gateway API experienced high latency in the United States for 2.9 hours, affecting the Lookup Identity Match and Legacy Identity MatchAndAttributes components. The team identified the root cause and implemented a fix, with service returning to normal operations after a monitoring period.

Twilio experienced SMS delivery receipt delays for messages sent from certain short codes to Liberty Mobile network subscribers in Puerto Rico, lasting 3.9 hours. While SMS messages were still being delivered successfully, customers faced delays in receiving delivery confirmation receipts. The issue was identified, monitored for recovery, and fully resolved with normal delivery receipt operations restored.

Twilio customers experienced SMS delivery delays and failures when sending messages from Twilio phone numbers to MTel network subscribers in Bosnia and Herzegovina over a 3.5-hour period. The issue affected SMS services in the Europe region, preventing reliable message delivery to this specific carrier network. Twilio's team identified the root cause and resolved the incident, later consolidating updates under a broader European SMS delivery issue.

Twilio experienced SMS delivery delays and failures to Orange network subscribers in Madagascar for 82.7 hours. The issue affected Twilio customers' ability to send SMS messages to recipients on the Orange network in Madagascar. The incident was resolved after the team identified the root cause and implemented a fix, with service returning to normal operations.

Twilio experienced voice call failures for 9.1 hours affecting calls from German network subscribers (specifically Telefonica) to Twilio Germany phone numbers. The issue impacted Twilio's Voice service in the Europe region, preventing successful call connections from the German telecommunications network. Twilio identified the root cause and gradually restored service, with full resolution confirmed after monitoring service stability.

Twilio experienced inbound call failures through the Telefonica carrier in Germany, affecting Voice services in Europe. The issue was detected by monitoring systems and investigated by engineers. The incident was resolved after 22 minutes.

Twilio's Knowledge API calls failed when accessed through the Python SDK and Package, affecting the REST API component for 1.4 hours. The issue prevented successful API calls to knowledge.twilio.com for Python SDK users. Twilio resolved the incident and released a minor version fix to restore full functionality.

Twilio experienced SMS delivery delays for messages sent from certain alphanumeric sender IDs to Orange network subscribers in Botswana, lasting approximately 3.9 hours. The issue affected Twilio's SMS service in the Middle East & Africa region, causing delayed message delivery to this specific carrier and geographic combination. The team identified the root cause and successfully resolved the incident, with SMS delivery returning to normal operations.

Twilio experienced SMS delivery delays to KPN network subscribers in the Netherlands for 45 hours, affecting customers sending messages to recipients on that specific carrier network. The incident involved multiple periods of apparent recovery followed by recurring delays before being permanently resolved. SMS delivery to KPN Netherlands subscribers returned to normal operation after the team identified and fixed the underlying cause.

Twilio experienced SMS delivery delays and failures for messages sent from Twilio phone numbers to Telekom Srbija network subscribers in Serbia for 4.5 hours. The issue affected SMS services in the Europe region, preventing reliable message delivery to users on the Serbian carrier network. The incident was resolved after monitoring showed recovery in SMS delivery performance to the affected network.