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Outage in Sinch

US7 site - Degradation

Resolved Minor
March 18, 2026 - Started about 1 month ago - Lasted about 16 hours
Official incident page

Incident Report

Summary AI Generated

Sinch experienced performance degradation on their US7 site affecting SMPP, ENUM, and HTTP services for 15.6 hours. Clients were advised to temporarily use the US1 redundant site and alternative endpoints to minimize impact during the outage. The incident was resolved after implementing a fix and monitoring period.

Dear Client, We are currently experiencing a performance degradation on our US7 site. To minimize impact, clients are advised to temporarily connect to the designated redundant site US1 for the duration of this issue. Affected Site: US7 Recommended Redundant Site: US1 Alternative Endpoints: us1.smpp.api.sinch.com us1.httpsms.api.sinch.com us1.httplookup.api.sinch.com Our teams are actively investigating and working to resolve the issue as quickly as possible. If you have any questions, please contact support@sinch.com.

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Latest Updates ( sorted recent to last )
RESOLVED about 1 month ago - at 03/19/2026 01:27PM

This incident has been resolved.

Incident Start Time: 2026-03-18 16:30 UTC
Incident End Time: 2026-03-19 12:40 UTC

MONITORING about 1 month ago - at 03/19/2026 05:07AM

We are continuing to monitor for any further issues.

MONITORING about 1 month ago - at 03/19/2026 02:46AM

A fix has been implemented and we are monitoring the results.

INVESTIGATING about 1 month ago - at 03/18/2026 09:52PM

Dear Client,

We are currently experiencing a performance degradation on our US7 site.

To minimize impact, clients are advised to temporarily connect to the designated redundant site US1 for the duration of this issue.

Affected Site: US7

Recommended Redundant Site: US1

Alternative Endpoints:
us1.smpp.api.sinch.com
us1.httpsms.api.sinch.com
us1.httplookup.api.sinch.com

Our teams are actively investigating and working to resolve the issue as quickly as possible. If you have any questions, please contact support@sinch.com.

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