Twilio Outage History

Twilio experienced SMS delivery delays from their phone numbers to MTS network subscribers in Kazakhstan, affecting the SMS service in the APAC region. The incident lasted 3.1 hours, during which customers experienced delayed message delivery to this specific carrier network. The issue was identified, resolved, and SMS delivery to MTS Kazakhstan returned to normal operation.

Twilio experienced SMS delivery failures between a subset of their short codes and multiple mobile networks in Ireland, affecting SMS services in the Europe region. The incident lasted 28 minutes and impacted a subset of customers who were individually contacted by Twilio. The issue was investigated and resolved, with Twilio providing additional incident details to affected customers.

Twilio experienced SMS delivery failures from Twilio phone numbers to TeleTalk network subscribers in Bangladesh for 31.8 hours. The incident affected Twilio's SMS service in the APAC region, preventing customers from successfully delivering text messages to TeleTalk users. The issue was resolved and SMS delivery to TeleTalk Bangladesh returned to normal operation.

Twilio's User Authentication Identity Gateway API experienced increased failures and high latency specifically for Verizon customers in the United States, affecting Lookup SIM Swap and Legacy Identity MatchAndAttributes services. The incident lasted 3.4 hours, during which customers experienced API failures when attempting to authenticate users through Verizon's network. Twilio identified the root cause and implemented a fix, with service returning to normal operations after a monitoring period.

Twilio experienced an 8.6-hour service interruption affecting messaging pricing callbacks, usage notifications for billing events, and balance updates, causing these processes to be delayed. The issue impacted Twilio's billing system components, preventing timely processing of pricing and usage data. Engineers investigated and resolved the problem, restoring normal service operations.

Twilio experienced a 2.5-hour outage affecting WhatsApp sender onboarding, preventing customers from completing the setup process for new WhatsApp senders. The issue impacted the Messaging Channels component and was resolved after engineers identified and fixed the underlying problem. Service returned to normal operation with continued monitoring for system stability.

Twilio experienced SMS delivery delays from their phone numbers to Beeline network subscribers in Kazakhstan for 2.3 hours. The issue affected SMS services in the APAC region, causing delayed message delivery to users on the Beeline mobile network. The team identified the root cause and restored normal SMS delivery operations.

Twilio experienced SMS delivery delays from Mexico to a subset of short codes, affecting customers' messaging services in the Latin America region. The team identified the root cause and implemented a fix, with service recovery observed after approximately 2.4 hours. SMS delivery from Mexico to Twilio short codes returned to normal operation following a monitoring period to ensure stability.

Twilio experienced SMS delivery receipt delays from a subset of short codes to T-Mobile and Verizon subscribers in the United States, though message delivery itself continued to succeed. The issue affected SMS Short Code services in North America and impacted a small set of customers. The incident was resolved after 26 minutes of investigation, with affected customers contacted individually to address concerns.

Twilio experienced SMS delivery delays affecting messages sent from Twilio phone numbers to MTN network subscribers in Nigeria for 2.8 hours. The issue impacted SMS services in the Middle East & Africa region, causing delayed message delivery to MTN users. The team identified the root cause and restored normal SMS delivery operations after monitoring service stability.