Twilio Outage History

Twilio experienced SMS delivery delays and failures from Twilio phone numbers to multiple network subscribers in Italy (initially reported as affecting multiple European countries) for 11.5 hours. The incident affected Twilio's SMS service in the Europe region, with customers unable to reliably send text messages to recipients on various Italian mobile networks. Twilio identified the root cause and gradually restored service, with full resolution confirmed after monitoring the recovery.

Twilio experienced SMS delivery delays and failures between Twilio phone numbers and multiple network subscribers in Thailand for 16 hours. The incident affected SMS services in the APAC region, preventing reliable message delivery to Thai mobile networks. The issue was identified and resolved, with SMS delivery returning to normal operations after a monitored recovery period.

Twilio experienced SMS delivery delays and failures from a subset of toll-free numbers to multiple networks in the United States, affecting customers' ability to send text messages reliably. The issue impacted SMS Toll-Free services in North America for approximately 3.2 hours. The incident was resolved after the team identified the root cause and implemented a fix, with SMS delivery returning to normal operation.

Twilio experienced voice call audio quality degradation affecting calls from a subset of US phone numbers to US network subscribers for 2.8 hours. The issue impacted Twilio's Voice service in North America, causing poor audio quality during calls. Twilio's team identified the root cause and implemented a fix, with service recovery observed and monitoring continuing to ensure stability.

Twilio experienced SMS delivery failures from their phone numbers to AT&T network subscribers in Mexico, affecting SMS services in Latin America. The issue prevented messages from reaching AT&T Mexico customers during the incident period. The problem was identified and resolved within 11 minutes, restoring normal SMS delivery operations.

Twilio experienced SMS delivery failures and delays between Twilio phone numbers and AT&T network subscribers in Mexico for over 4 days. The incident affected SMS services in the Latin America region, preventing reliable message delivery to AT&T customers in Mexico. The issue was resolved after the team identified the root cause and implemented a fix, with service returning to normal operations.

Twilio experienced SMS delivery delays affecting multiple mobile networks in Brunei Darussalam, impacting customers sending messages to subscribers in that region. The service disruption lasted 8 minutes and affected SMS services in the APAC region. The issue was resolved after active investigation by Twilio's team.

Twilio's Conversation Intelligence (Classic) feature became unavailable in the new console, preventing customers from managing Intelligence Services and Language Operators for 3.5 hours. The outage affected the Intelligence component and was classified as a minor incident. The issue was resolved and the service returned to normal operation.

Twilio experienced SMS delivery delays from a subset of phone numbers to SCO Mobile network subscribers in Pakistan for 3.4 hours. The issue affected SMS services in the APAC region, causing delayed message delivery to users on the SCO Mobile network. Twilio identified the root cause and resolved the incident, with SMS delivery returning to normal operations.

Twilio investigated a potential issue where accounts might not be able to capture speech using the "gather" verb in TwiML. After a 46-minute investigation, Twilio determined there was no noticeable customer impact and confirmed all systems were operational.