Twilio Outage History

Twilio experienced delays delivering SMS and MMS to Verizon's US network. The incident began at 2:07 AM UTC when the status moved from up to warn, due to Verizon network delivery delays and ongoing carrier work. The affected paths included CARRIER NETWORK / SMS Long Code, North America and CARRIER NETWORK / MMS Long Code, North America, with engineers coordinating with the carrier to resolve the issue. The outage lasted about 8 hours and 55 minutes, and the incident involved multiple carrier-partner maintenance events and regular status updates. By 11:02 AM UTC, several North America paths had returned to up, while other regions’ maintenance activities were concluding.

Twilio reported delays and failures delivering SMS delivery reports to CDMA networks in Yemen, impacting delivery confirmations and, in some cases, message delivery itself. The issue affected the CARRIER NETWORK / SMS, Middle East & Africa component and was regional in scope. The outage began on 11:12 PM UTC and continued with updates through 11:37 PM UTC as engineers worked with the carrier partner to resolve the problem, with communications indicating ongoing investigation and remediation efforts.

The incident exhibited degraded performance rather than a full service outage, with multiple status updates over roughly a day detailing investigation steps and carrier collaborations. Geographic impact was centered in Yemen, highlighting a regional carrier-network disruption rather than a global service-wide issue.

Twilio experienced SMS delivery delays affecting messages to Telefonica and Entel networks in Chile, with related issues across North American carrier paths. The incident began with an alert at Jan 7, 2025 3:57 AM UTC and Twilio stated they were investigating with carrier partners. A US carrier maintenance window was then noted, impacting multiple North American paths (MMS and SMS). By Jan 7, 2025 12:02 PM UTC, Chilean delays showed signs of recovery while monitoring continued. Over the course of the day, Twilio issued 7 status updates detailing progress and ongoing efforts to resolve the wider carrier issues.

Geographically, the impact spanned Latin America and North America, with delays affecting SMS delivery across several carrier routes including Chilean networks and various North American short codes and MMS paths. By Jan 7, 2025 5:22 PM UTC, some North American paths had resumed normal operation and recovery continued across the affected routes.

Twilio experienced SMS delivery failures to the Altice network in the United States on a subset of short codes, with delays reported across multiple carrier networks in Latin America, APAC, Europe, and the Middle East & Africa. The incident started on Jan 3, 2025 1:02 PM UTC and prompted ongoing investigation with carrier partners to restore normal messaging. Users attempting to send SMS via Twilio Programmable Messaging could experience failures or delays.

Over the course of the incident, Twilio issued 16 status updates detailing investigation progress, carrier maintenance, and recovery steps. The disruption affected multiple regions and carrier networks across SMS, MMS, and Voice services before gradually resolving, with the final status updating on Jan 6, 2025 10:57 PM UTC and recovery proceeding thereafter. The outage lasted from Jan 3, 2025 1:02 PM UTC to Jan 6, 2025 10:57 PM UTC, approximately 3 days and 10 hours.

Twilio reported regional SMS delivery issues impacting Europe (France) and the APAC region (Philippines). In Europe, delivery failures occurred to multiple networks for a subset of longcode numbers. Later updates indicated delays affecting the Smart and Globe networks in the Philippines. Engineers worked with carrier partners to investigate and remediate the issue across both regions.

The Europe issue began at Jan 2, 2025 11:22 PM UTC and was resolved by Jan 3, 2025 8:52 AM UTC, lasting about 9 hours 30 minutes. The APAC delays began at Jan 3, 2025 4:27 AM UTC and were resolved by Jan 3, 2025 12:27 PM UTC, lasting about 8 hours. Twilio issued four status updates during the incident, documenting investigation and remediation across two regional carrier networks (Europe and APAC). The issues were regional rather than global, with services returning to normal in both regions after the updates.

Twilio experienced SMS delivery delays affecting messages sent to specific carrier networks in Latin America and APAC. The issue began with delays contacting Tigo Network in Honduras and soon extended to Grameenphone in Bangladesh, impacting both the Carrier Network / SMS and Programmable Messaging / SMS components. Over the course of the incident, Twilio issued several status updates as engineers worked with carrier partners to resolve the delays. The Latin America impact began at 5:57 AM UTC, with updates indicating ongoing issues, while APAC delays were subsequently noted and later resolved. The event highlighted degraded SMS delivery reliability across multiple regions and carriers.

Twilio faced a multi-service disruption affecting Messaging Insights, Vodafone Germany SMS delivery, and Console purchases. The incident began at Jan 1, 2025 6:22 AM UTC when Messaging Insights stopped returning data for scheduled messages, followed by SMS delivery delays to Vodafone Germany and problems purchasing package plans in the Twilio Console. The issues impacted three components: PROGRAMMABLE MESSAGING / Messaging Insights, CARRIER NETWORK / SMS, Europe, and DEVELOPER TOOLS / Console.

The provider issued six status updates between 06:22 and 15:32 UTC, with Messaging Insights moving from a degraded state to normal by 3:32 PM UTC. The incident shows a regional pattern in Europe (Vodafone Germany) but no global outages. No root cause is disclosed in the current updates.