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Sinch Outage History

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

There were 3714 Sinch outages since March 2020. The 409 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor May 19, 2026

May 2026: Delivery Issue France - Orange

Detected May 19, 2026 7:35 PM EDT · Resolved May 19, 2026 9:52 PM EDT · Duration about 2 hours

Sinch experienced SMS delivery issues specifically affecting Orange network users in France, causing delayed mobile-terminated and mobile-originated messages along with missing or late delivery receipts. The incident impacted SMS services in the EMEA region for approximately 2.3 hours from May 19, 2026 at 22:52 UTC until resolution on May 20, 2026 at 01:21 UTC.

Minor May 19, 2026

May 2026: Delivery Issue Brazil - Vivo

Detected May 19, 2026 1:20 PM EDT · Resolved May 19, 2026 10:32 PM EDT · Duration about 9 hours

Sinch experienced SMS delivery issues with the Vivo carrier in Brazil, causing delayed mobile-terminated and mobile-originated messages along with missing or late delivery receipts. The incident affected the SMS LATAM service component and lasted approximately 7 hours from May 19, 2026 at 15:58 UTC until resolution at 22:52 UTC the same day.

Minor May 19, 2026

May 2026: Delivery Issue - Canada - ISP Telecom

Detected May 19, 2026 6:05 AM EDT · Resolved May 19, 2026 7:15 AM EDT · Duration about 1 hour

Sinch experienced delivery issues with SMS services to Canada's ISP Telecom from 09:39 to 10:44 UTC on May 19, 2026. The incident affected SMS short code services in Canada, causing delayed mobile-terminated and mobile-originated messages, along with missing or late delivery receipts. The service was restored after approximately 1.2 hours.

Minor May 19, 2026

May 2026: Delivery Issue Brazil - Algar Telecom

Detected May 19, 2026 3:04 AM EDT · Resolved May 19, 2026 6:39 AM EDT · Duration about 4 hours

Sinch experienced SMS delivery issues with the Algar Telecom network in Brazil, causing delayed mobile-terminated and mobile-originated messages along with missing or late delivery receipts. The incident affected SMS services in the LATAM region for 3.6 hours from 03:17 UTC to 10:09 UTC on May 19, 2026. The issue was resolved after investigation and monitoring.

Minor May 19, 2026

May 2026: Delivery Issue Denmark - 3

Detected May 19, 2026 1:19 AM EDT · Resolved May 19, 2026 6:43 AM EDT · Duration about 5 hours

Sinch experienced SMS delivery issues in Denmark affecting their EMEA SMS service from 04:47 to 10:29 UTC on May 19, 2026. The incident caused delayed mobile-terminated and mobile-originated messages, along with missing or late delivery receipts. The service was fully restored after 5.4 hours of disruption.

Minor May 16, 2026

May 2026: Delivery Issue Colombia - Claro

Detected May 16, 2026 10:38 AM EDT · Resolved May 16, 2026 1:34 PM EDT · Duration about 3 hours

Sinch experienced SMS delivery issues with the Claro network in Colombia from 13:00 to 16:24 UTC on May 16, 2026. The incident caused delayed mobile-terminated and mobile-originated messages, along with missing and late delivery receipts for SMS services in the LATAM region. The issue was resolved after approximately 3 hours of investigation.

Minor May 14, 2026

May 2026: Delivery Issue Mexico - AT&T

Detected May 14, 2026 6:35 PM EDT · Resolved May 14, 2026 7:35 PM EDT · Duration about 1 hour

Sinch experienced SMS delivery issues specifically affecting AT&T customers in Mexico, causing delayed mobile-terminated and mobile-originated messages along with missing or late delivery receipts. The incident impacted the SMS - LATAM service component for approximately 3 hours from 20:21 UTC to 23:23 UTC on May 14, 2026. The service was fully restored and the incident was resolved.

Minor May 14, 2026

May 2026: Delivery Issue United States - AT&T - MMS

Detected May 14, 2026 1:27 PM EDT · Resolved May 14, 2026 2:18 PM EDT · Duration about 1 hour

Sinch experienced MMS delivery issues on the AT&T network in the United States, causing delayed or failed message delivery for customers. The incident affected MMS services including 10DLC messaging and lasted approximately 70 minutes from 16:22 to 17:32 UTC on May 14, 2026. The service was fully restored and the incident was resolved.

Minor May 14, 2026

May 2026: Delivery Issue United Kingdom - Lebara

Detected May 14, 2026 6:21 AM EDT · Resolved May 14, 2026 8:41 AM EDT · Duration about 2 hours

Sinch experienced delivery issues with the Lebara network in the United Kingdom from 10:01 to 11:51 UTC on May 14, 2026. The incident caused delayed mobile-terminated and mobile-originated messages, along with missing or late delivery receipts, affecting SMS Verification and SMS - EMEA services. The issue was resolved after 1 hour and 50 minutes of investigation.

Minor May 13, 2026

May 2026: Delivery Issue Mexico - AT&T

Detected May 13, 2026 3:01 PM EDT · Resolved May 13, 2026 3:59 PM EDT · Duration about 1 hour

Sinch experienced SMS delivery issues specifically affecting AT&T customers in Mexico, causing delayed mobile-terminated and mobile-originated messages along with missing or late delivery receipts. The incident impacted the SMS - LATAM service component for 58 minutes from 18:29 to 19:29 UTC on May 13, 2026. The service was fully restored and the incident was resolved.