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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 20, 2026

May 2026: SMS Delivery Delays from Twilio Phone Numbers to Entel Peru

Detected May 20, 2026 2:36 PM EDT · Resolved May 20, 2026 7:42 PM EDT · Duration about 5 hours

Twilio experienced SMS delivery delays from Twilio phone numbers to Entel network subscribers in Peru for 5.1 hours. The incident affected SMS services in the Latin America region, preventing timely message delivery to users on the Entel network. The issue was identified and resolved, with SMS delivery returning to normal operations.

Minor May 20, 2026

May 2026: SMS Delivery Delays From Twilio Long Codes to Claro Colombia

Detected May 20, 2026 12:04 PM EDT · Resolved May 20, 2026 5:39 PM EDT · Duration about 6 hours

Twilio experienced SMS delivery delays from Long Codes to Claro network subscribers in Colombia for 5.6 hours. The issue affected SMS services in Latin America, causing delayed message delivery to users on the Claro mobile network. The team identified the root cause and restored normal SMS delivery operations.

Minor May 20, 2026

May 2026: SMS Delivery Delays from Twilio Phone Numbers to T-Mobile United States

Detected May 20, 2026 11:43 AM EDT · Resolved May 21, 2026 4:14 PM EDT · Duration 1 day

Twilio experienced SMS delivery delays from their phone numbers and short codes to T-Mobile network subscribers in the United States for 28.5 hours. The issue primarily affected SMS short code services in North America, with most regular phone number traffic recovering early but a subset of short codes continuing to experience problems. Twilio identified the root cause and confirmed full stability and recovery across all services to the T-Mobile network.

Minor May 20, 2026

May 2026: SMS Delivery Delays from Twilio Phone Numbers to MTN Nigeria

Detected May 20, 2026 9:52 AM EDT · Resolved May 20, 2026 2:14 PM EDT · Duration about 4 hours

Twilio experienced SMS delivery delays from Twilio Phone Numbers to MTN network subscribers in Nigeria for 4.4 hours. The issue affected SMS services in the Middle East & Africa region, preventing timely message delivery to MTN customers. Twilio's team identified the root cause and resolved the incident, with SMS delivery returning to normal operations.

Minor May 20, 2026

May 2026: SMS Delivery Failures From Network Subscribers to a Subset of Twilio Denmark Phone Numbers

Detected May 20, 2026 3:58 AM EDT · Resolved May 27, 2026 6:56 PM EDT · Duration 8 days

Twilio experienced SMS delivery failures from network subscribers to Denmark phone numbers, affecting customers using Twilio's SMS service in Europe for approximately 183 hours. The issue was identified and worked on for several days, with gradual recovery observed starting May 26th. Service was fully restored on May 27th with SMS delivery to Twilio Denmark phone numbers operating normally.

Minor May 19, 2026

May 2026: SMS Delivery Delays from Twilio Phone Numbers to Orange France

Detected May 19, 2026 7:14 PM EDT · Resolved May 20, 2026 1:20 AM EDT · Duration about 6 hours

Twilio experienced SMS delivery delays from their phone numbers to Orange network subscribers in France for 6.1 hours. The issue affected SMS services in the Europe region, causing delayed message delivery to customers on the Orange France network. Twilio identified the root cause and resolved the incident, with SMS delivery returning to normal operations.

Minor May 19, 2026

May 2026: SMS Delivery Delays from Twilio Phone Numbers to GTA Wireless United States

Detected May 19, 2026 6:35 PM EDT · Resolved May 21, 2026 6:34 PM EDT · Duration 2 days

Twilio customers experienced SMS delivery delays when sending messages from Twilio phone numbers to GTA Wireless network subscribers in the United States for 48 hours. The issue affected all North American SMS services including long code, short code, and toll-free numbers. After multiple recovery attempts and monitoring periods, the incident was fully resolved and SMS delivery returned to normal operation.

Minor May 19, 2026

May 2026: SMS Delivery Failures from a Subset of Twilio Short Codes to New Zealand

Detected May 19, 2026 4:16 PM EDT · Resolved May 19, 2026 7:28 PM EDT · Duration about 3 hours

Twilio experienced SMS delivery failures from a subset of short codes to New Zealand destinations for 3.2 hours. The issue affected SMS services in the APAC region, preventing messages from being delivered to New Zealand phone numbers. Twilio identified the root cause and restored normal SMS delivery functionality.

Minor May 19, 2026

May 2026: Intelligent Alerts - No Intelligent Alerts Are Sent to Customers

Detected May 19, 2026 2:42 PM EDT · Resolved May 19, 2026 3:40 PM EDT · Duration about 1 hour

Twilio's Intelligent Alerts service experienced a complete delivery failure for 57 minutes, preventing customers from receiving any intelligent alerts. The issue was identified, resolved, and service was fully restored with normal alert delivery resuming.

Minor May 19, 2026

May 2026: User Authentication Identity SNA Failure Increase for Smartfren in Indonesia

Detected May 19, 2026 1:32 PM EDT · Resolved May 20, 2026 3:49 AM EDT · Duration about 14 hours

Twilio experienced increased failures in User Authentication Identity Silent Network Auth (SNA) specifically for Smartfren network users in Indonesia, affecting the Verify Silent Network Auth service. The incident lasted 14.3 hours, during which customers using Smartfren as their mobile carrier encountered authentication failures when attempting to verify their identity through silent network authentication. Twilio's team identified the root cause and implemented a fix, with service recovery observed before full resolution was confirmed.