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Sinch Outage History

Daily provider-status observations and published incident history for Sinch.

Operational

Sinch is operational. Verified . Official provider source.

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15.2% of 46 verified observed days had no reported provider issue

90-Day Trend

Jul 24Oct 21

Dashed calendar markers below identify legacy observations whose source-at-observation was not recorded.

Monthly Status Summary

Month Issue-free days Days Tracked Days with issues
September 2026 16% 25 21

This percentage summarizes normalized provider-status observations by calendar day. It is not duration-based, component-weighted, or contractual uptime. See the methodology and limitations.

Recorded Daily Status (Last 91 Days)

Jul 23 Today
Legacy observation Operational Degraded Partial Outage Major Outage Maintenance No Data

Incident History

September 2026
Delivery Issue Belgium - Proximus
minor Observed active window 3h 20m

View incident details and source

Started:

SMS - EMEA
monitoring
A fix has been implemented and we are monitoring the results.
identified
The carrier has confirmed a degradation on their end, and they are currently working on resolving the issue. As soon as we have any updates, they will be shared accordingly.
investigating
We are currently observing delivery issues in Belgium - Proximus Incident Start Time: 2026-09-27 22:01 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.
Customer Support - Ticketing System
minor Observed active window 58m

View incident details and source

Started:

Customer Support
investigating
We are currently experiencing an issue with our ticketing system related to the following emails: support@sinch.com Impact: Customers may experience delayed responses from support. Incident Start Time : 2026-09-25 14:46 UTC As an alternative in the meantime, please raise all tickets via our ticketing portal at support.sinch.com.
Delivery Issue Brazil - Claro
minor Observed active window 2h 54m

View incident details and source

Started:

SMS - LATAM
identified
The carrier has confirmed a degradation on their end, and they are currently working on resolving the issue. As soon as we have any updates, they will be shared accordingly.
investigating
We are currently observing delivery issues in Brazil - Claro Incident Start Time: 2026-09-25 03:27 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.
Delivery Issue Venezuela - Digitel
minor Observed active window 11h 16m

View incident details and source

Started:

SMS - LATAM
investigating
We are continuing to investigate this issue.
investigating
We are continuing to investigate this issue.
investigating
We are currently observing delivery issues in Venezuela - Digitel. Incident Start Time: 2026-09-23 00:44 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.
Delivery Issue Sri Lanka - Hutchison
minor Observed active window 2h 6m

View incident details and source

Started:

SMS - APAC
investigating
We are currently observing delivery issues in Sri Lanka - Hutchison Incident Start Time: 2026-09-22 10:26 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.
Service Degradation – Calling – AP-Southeast-1
critical Observed active window 2h 59m

View incident details and source

Started:

Data Calling Phone Calling (PSTN) Video Calling SIP Trunk
monitoring
A fix has been implemented and we are monitoring the results.
investigating
We are continuing to investigate this issue.
investigating
We want to inform you that we are currently experiencing a performance degradation impacting our Calling services in the AP-Southeast-1 region. Incident Start Time: 2026-09-22 04:50 UTC Impact: Customers may experience delayed or failed attempts via In-app Calling / PSTN Calling/ Video Calling and SIP Trunk . We sincerely apologize for any inconvenience this may cause and appreciate your understanding while we work to resolve the issue. For further information or assistance, please contact us at support@sinch.com.
Delivery Issue Mexico - Izzi
minor Observed active window 2h 17m

View incident details and source

Started:

SMS - LATAM
investigating
We are continuing to investigate this issue.
investigating
We are currently observing delivery issues in Mexico - Izzi Incident Start Time: 2026-09-22 03:05 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.
Delivery Issue France - Orange
minor Observed active window 1h 1m

View incident details and source

Started:

SMS - EMEA
investigating
We are currently observing delivery issues in France - Orange Incident Start Time: 2026-09-21 22:29 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.
Delivery Issue Brazil - Claro
minor Observed active window 37m

View incident details and source

Started:

SMS - LATAM
investigating
We are currently observing delivery issues in Brazil - Claro Incident Start Time: 2026-09-21 01:19 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.
Delivery Issue Congo D.R - Orange DRC
minor Observed active window 5h 16m

View incident details and source

Started:

SMS - EMEA
investigating
We are continuing to investigate this issue.
investigating
We are currently observing delivery issues in Congo D.R - Orange DRC Incident Start Time: 2026-09-17 15:59 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.

Legacy Incident Archive

218 archived records restored. These records predate source-at-observation attestation. They are shown as historical ServiceAlert records only and do not establish a provider-reported incident, resolution, duration, or current active state.

April 2026
Delivery Issue United States - AT&T
minor Source not attested
Last archived state: resolved
View archived record details
investigating
We are continuing to investigate this issue.
investigating
We are continuing to investigate this issue.
investigating
We are currently observing delivery issues in United States - AT&T Incident Start Time: 2026-04-18 01:25 UTC We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.
Delivery Issue Cuba - Cubacel
minor Source not attested
Last archived state: resolved
View archived record details
investigating
We are continuing to investigate this issue.
investigating
We are continuing to investigate this issue.
investigating
We are continuing to investigate this issue.
investigating
We are currently observing delivery issues in Cuba - Cubacel Incident Start Time: 2026-04-18 00:23 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.
Service Disruption - Sinch Engage - Social Campaigns Creation Failure
minor Source not attested
Last archived state: resolved
View archived record details
monitoring
A fix has been implemented and we are monitoring the results.
investigating
We are continuing to investigate this issue.
investigating
We are currently investigating an issue affecting Sinch Engage Social Campaigns where users may be unable to create new campaigns from the Social Messaging - All Campaigns section. Impact: Clicking the Create button may result in no action, and campaign creation is currently impacted. We will provide further updates as more information becomes available.
Delivery Issue Angola - Africell
minor Source not attested
Last archived state: resolved
View archived record details
investigating
We are currently observing delivery issues in Angola - Africell Incident Start Time: 2026-04-17 08:12 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.
Site US7 - Network Disturbance
minor Source not attested
Last archived state: resolved
View archived record details
monitoring
We are continuing to monitor for any further issues.
monitoring
We are continuing to monitor for any further issues.
monitoring
A fix has been implemented and we are monitoring the results.
investigating
We are currently experiencing a network disturbance on our US7 site. Our engineers are currently investigating. To maintain uninterrupted service, clients are advised to connect to the corresponding redundant site indicated below: Impacted endpoints: us7.smpp.api.sinch.com us7.httpsms.api.sinch.com us7.httplookup.api.sinch.com Corresponding redundant endpoints are available: us1.smpp.api.sinch.com us1.httpsms.api.sinch.com us1.httplookup.api.sinch.com We will provide ongoing up...
Service Disruption - Sinch Engage Legacy
minor Source not attested
Last archived state: resolved
View archived record details
identified
The issue has been identified and a fix is being implemented.
investigating
We are currently investigating an issue with creating message templates in Sinch Engage Legacy. Incident Start Time: 2026-04-15 12:10 UTC Impact: Clients may experience errors when attempting to create new message templates via the “Create a template” option. This issue is affecting multiple accounts and preventing template creation. We will provide further updates as more information becomes available.
Delivery Issue Costa Rica - Telefonica Costa Rica
minor Source not attested
Last archived state: resolved
View archived record details
investigating
We are continuing to investigate this issue.
investigating
We are currently observing delivery issues in Costa Rica - Telefonica Costa Rica Incident Start Time: 2026-04-12 01:55 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.
Delivery Issue Colombia - Tigo
minor Source not attested
Last archived state: resolved
View archived record details
investigating
We are currently observing delivery issues in Colombia - Tigo Incident Start Time: 2026-04-11 18:07 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.
Delivery Issue Brazil - Algar Telecom
minor Source not attested
Last archived state: resolved
View archived record details
investigating
We are continuing to investigate this issue.
investigating
We are continuing to investigate this issue.
investigating
We are currently observing delivery issues towards Brazil - Algar Telecom Incident Start Time: 2026-04-10 04:00 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information
DI SMS 365 (iSMS) | Operator Services | Potential delay in delivery of MO, MT and DR | TT#MNOC-63843
Source not attested
Last archived state: resolved
View archived record details
investigating
Ticket Number :: MNOC-63843 Services:: DI SMS 365 (iSMS) Description :: Our internal monitoring has alerted to an incident. Few of our customers connected to iSMS platform may observe potential delay in delivery of messages. Impact :: Mobile Terminating (MT) Traffic: Potential Delay in delivery Mobile Originated (MO) Traffic: Potential Delay in delivery DR Notification : Potential Delay in delivery Report Manager Access : Not Impacted Report Manager Statistics : Not Impacted Incident St...