Sinch Outage History

Sinch experienced SMS delivery issues specifically affecting T-Mobile customers in the United States, causing delayed mobile-terminated and mobile-originated messages along with missing or late delivery receipts. The incident impacted SMS services across ShortCode, Toll Free, and 10DLC components for approximately 2 hours from March 28, 2026 at 23:59 UTC until resolution on March 29, 2026 at 01:52 UTC. A fix was implemented and monitored before the incident was fully resolved.

Sinch experienced delivery issues with SMS services in Brazil specifically affecting Algar Telecom customers from March 27, 15:35 UTC to 18:43 UTC. The incident caused delayed mobile-terminated and mobile-originated messages, along with missing and late delivery receipts for the SMS LATAM component. The service was fully restored after 2.1 hours with the incident resolved by 19:30 UTC.

Sinch experienced SMS delivery issues with the Odido network in the Netherlands from 10:56 to 12:29 UTC on March 26, 2026. The incident caused delayed mobile-terminated and mobile-originated messages, along with missing or late delivery receipts for SMS services in the EMEA region. The issue was resolved after approximately 1.8 hours of service disruption.

Sinch experienced SMS delivery issues in Sweden affecting the Tele2Comviq network, causing delayed mobile-terminated and mobile-originated messages along with missing or late delivery receipts. The incident affected SMS services in the EMEA region and lasted approximately 47 minutes from 10:01 to 10:48 UTC on March 26, 2026. The issue was resolved and service was restored to normal operation.

Sinch experienced a service degradation affecting number purchases and provisioning, including North American Porting, on their customer dashboard (Dashboard.sinch.com). The incident impacted the Numbers Administration component and lasted approximately 2 hours and 4 minutes, from 16:15 UTC to 18:19 UTC on March 25, 2026. The issue was resolved and full functionality was restored.

Sinch experienced SMS delivery issues with AT&T in Mexico from 06:36 to 07:06 UTC on March 25, 2026, lasting 36 minutes. The incident caused delayed or failed mobile-terminated and mobile-originated messages, along with missing or late delivery receipts affecting the SMS LATAM service. Performance was restored by 07:06 UTC and the incident was fully resolved by 07:37 UTC after continued monitoring.

Sinch experienced a service disruption affecting US Test Short Code 10907, causing failed mobile-terminated (MT) and mobile-originated (MO) SMS messages. The incident lasted approximately 14.5 days from March 23 to April 8, 2026. The issue was resolved with new requirements that future use of the test shortcode requires compliance approval and completion of updated agreements.

Sinch Engage experienced a service disruption in the EMEA region affecting integrations with Salesforce, HubSpot, and Zoho CRM, preventing some customers from sending SMS through these platforms. The incident lasted approximately 6.5 hours from 13:01 UTC to 19:40 UTC on March 24, 2026. The service has been fully restored and the incident is resolved.

Sinch experienced SMS delivery issues with Globe Telecom in the Philippines from 12:11 to 13:20 UTC on March 24, 2026. The incident caused delayed mobile-terminated and mobile-originated messages, along with missing or late delivery receipts for SMS services in the APAC region. The issue was resolved after approximately 1.6 hours.

Sinch experienced delivery issues affecting SMS services across US and Canada minor networks from 09:05 to 09:28 UTC on March 24, 2026. The incident caused delayed mobile-terminated and mobile-originated messages, along with missing or late delivery receipts across multiple SMS components including shortcodes, toll-free numbers, and 10DLC services. The service was restored after 23 minutes, with performance returning to normal levels.