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Twilio Outage History

Every past Twilio outage tracked by IsDown, with detection times, duration, and resolution details.

There were 10418 Twilio outages since April 2020. The 1888 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor May 15, 2026

May 2026: SMS Delivery Delays and Failures from Twilio Phone Numbers to Multiple Networks in Italy

Detected May 15, 2026 10:37 AM EDT · Resolved May 15, 2026 10:05 PM EDT · Duration about 11 hours

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.

Minor May 15, 2026

May 2026: SMS Delivery Delays and Failures Between Twilio Phone Numbers and Multiple Networks in Thailand

Detected May 15, 2026 2:20 AM EDT · Resolved May 15, 2026 6:20 PM EDT · Duration about 16 hours

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.

Minor May 14, 2026

May 2026: SMS Delivery Delays and Failures from a Subset of Twilio Toll-Free Numbers to Multiple Networks in United States

Detected May 14, 2026 11:54 PM EDT · Resolved May 15, 2026 3:07 AM EDT · Duration about 3 hours

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.

Minor May 14, 2026

May 2026: Voice Call Audio Quality Degradation from a Subset of Twilio United States Phone Numbers to United States

Detected May 14, 2026 11:01 PM EDT · Resolved May 15, 2026 1:47 AM EDT · Duration about 3 hours

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.

Minor May 14, 2026

May 2026: SMS Delivery Failures from Twilio Phone Numbers to AT&T Mexico

Detected May 14, 2026 5:07 PM EDT · Resolved May 14, 2026 5:18 PM EDT · Duration 11 minutes

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.

Minor May 14, 2026

May 2026: SMS Delivery Failures and Delays between Twilio Phone Numbers and AT&T in Mexico

Detected May 14, 2026 4:50 PM EDT · Resolved May 19, 2026 8:04 AM EDT · Duration 5 days

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.

Minor May 14, 2026

May 2026: SMS Delivery Delays from Twilio to Multiple Networks in Brunei Darussalam

Detected May 14, 2026 11:10 AM EDT · Resolved May 15, 2026 4:43 AM EDT · Duration about 18 hours

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.

Minor May 14, 2026

May 2026: Conversation Intelligence (Classic) is Unavailable in the new Console

Detected May 14, 2026 4:25 AM EDT · Resolved May 14, 2026 7:53 AM EDT · Duration about 3 hours

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.

Minor May 14, 2026

May 2026: SMS Delivery Delays from a Subset of Twilio Phone Numbers to SCO Mobile Pakistan

Detected May 14, 2026 12:40 AM EDT · Resolved May 14, 2026 4:04 AM EDT · Duration about 3 hours

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.

Minor May 13, 2026

May 2026: Twilio Accounts May Not Be Able to Capture Speech Using <gather>

Detected May 13, 2026 5:25 PM EDT · Resolved May 13, 2026 6:11 PM EDT · Duration about 1 hour

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.