Sinch Outage History

Started May 07, 2026, 04:58 PM UTC· resolved May 07, 2026, 10:39 PM UTC

1. investigating May 07, 2026, 04:58 PM UTC

   We are currently observing delivery issues towards United States - AT&T Estimated Incident Start Time: 2026-05-06 14:00 UTC Impact: Delayed delivery for concatenated 10DLC MT messages submitted towards AT&T US. We will update as soon as we have more information. If you have any questions, please contact [email protected].

2. investigating May 07, 2026, 07:04 PM UTC

   We are continuing to investigate this issue.

3. monitoring May 07, 2026, 09:52 PM UTC

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

4. resolved May 07, 2026, 10:39 PM UTC

   This incident has been resolved. Estimated Incident Start Time: 2026-05-06 14:00 UTC Incident End Time: 2026-05-07 21:50 UTC

Read the full incident report →

Started May 07, 2026, 01:12 PM UTC· resolved May 08, 2026, 01:04 PM UTC

1. investigating May 07, 2026, 01:12 PM UTC

   Ticket Number :: MNOC-64100 Services:: DI SMS 365 (iSMS) Description :: Our internal monitoring has alerted to an incident. Few of our customers may observe delays in delivery for MO, MT and DR messages. Our support team is currently working on high priority to resolve this issue. Monitoring NOC will continue to follow-up and update you on the progress made. 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 Start Date & Time (GMT) : May 07 12:59:17 UTC 2026 If you have any questions, please contact the Operator Service NOC immediately at [email protected] or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

2. resolved May 08, 2026, 01:04 PM UTC

   This incident has been resolved.

Read the full incident report →

Started May 06, 2026, 02:33 PM UTC· resolved May 06, 2026, 05:17 PM UTC

1. investigating May 06, 2026, 02:33 PM UTC

   We are currently experiencing an issue with our Conversation and REST APIs. Incident Start Time: 2026-05-05 07:00 UTC Impact: A subset of Delivery Receipts for concatenated messages will receive an unknown state if submitted via the Conversation or REST APIs. We will provide ongoing updates on this page. For any inquiries, please contact us at [email protected].

2. monitoring May 06, 2026, 04:22 PM UTC

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

3. resolved May 06, 2026, 05:17 PM UTC

   This incident has been resolved. Incident Start Time: 2026-05-05 07:00 UTC Incident End Time: 2026-05-06 16:16 UTC

Read the full incident report →

Started May 06, 2026, 09:36 AM UTC· resolved May 06, 2026, 06:20 PM UTC

1. investigating May 06, 2026, 09:36 AM UTC

   Ticket Number :: MNOC-64082 Services:: DI SMS 365 (iSMS) Description :: Our internal monitoring has alerted to an incident. Few of our customers may observe delays in delivery for MO, MT and DR messages. Our support team is currently working on high priority to resolve this issue. Monitoring NOC will continue to follow-up and update you on the progress made. 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 Start Date & Time (GMT) : May 06 09:20:47 UTC 2026 If you have any questions, please contact the Operator Service NOC immediately at [email protected] or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

2. monitoring May 06, 2026, 10:09 AM UTC

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

3. resolved May 06, 2026, 06:20 PM UTC

   This incident has been resolved.

Read the full incident report →

Started May 05, 2026, 07:00 PM UTC· resolved May 05, 2026, 07:00 PM UTC

1. resolved May 06, 2026, 02:48 PM UTC

   We experienced an issue affecting outbound traffic towards Finland, where a filtering configuration caused a subset of traffic to be incorrectly overwritten and routed using another sender ID. The issue was identified and rectified, and services are now operating normally. Incident Start Time: 2026-05-05 19:00 UTC Incident End Time: 2026-05-06 16:00 UTC If you have any questions, please contact [email protected].

Read the full incident report →

Started May 05, 2026, 08:07 AM UTC· resolved May 05, 2026, 10:03 AM UTC

1. investigating May 05, 2026, 08:07 AM UTC

   We are currently observing delivery issues in Finland - Elisa and Telia. Incident Start Time: 2026-05-05 07:30 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

2. resolved May 05, 2026, 10:03 AM UTC

   This incident has been resolved. Incident Start Time: 2026-05-05 07:30 UTC Incident End Time: 2026-05-05 09:50 UTC

Read the full incident report →

Started May 04, 2026, 02:06 AM UTC· resolved May 04, 2026, 06:11 AM UTC

1. investigating May 04, 2026, 02:06 AM UTC

   We are currently observing delivery issues in Guatemala - Tigo Incident Start Time: 2026-05-04 01:32 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 [email protected].

2. investigating May 04, 2026, 03:37 AM UTC

   We are continuing to investigate this issue.

3. resolved May 04, 2026, 06:11 AM UTC

   This issue has been resolved. Incident Start Time: 2026-05-04 01:32 UTC Incident End Time: 2026-05-04 06:01 UTC

Read the full incident report →

Started May 02, 2026, 10:38 AM UTC· resolved May 02, 2026, 12:44 PM UTC

1. investigating May 02, 2026, 10:38 AM UTC

   Ticket Number :: MNOC-64038 Services:: DI SMS 365 (iSMS) Description :: Our internal monitoring has alerted to an incident. Few of our customers may observe delays in delivery for MO, MT and DR messages. Our support team is currently working on high priority to resolve this issue. Monitoring NOC will continue to follow-up and update you on the progress made. 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 Start Date & Time (GMT) : 2026-05-02 09:54 GMT If you have any questions, please contact the Operator Service NOC immediately at [email protected] or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

2. resolved May 02, 2026, 12:44 PM UTC

   This issue has been resolved. Incident Start Date & Time (GMT) :2nd May 2026 09:54 GMT Incident End Date & Time (GMT) : 2nd May 2026 10:39 GMT

Read the full incident report →

Started Apr 30, 2026, 05:18 PM UTC· resolved May 01, 2026, 05:38 AM UTC

1. investigating Apr 30, 2026, 05:18 PM UTC

   We are currently observing delivery issues in US - AT&T Incident Start Time: 2026-04-29 19:35 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 [email protected].

2. investigating Apr 30, 2026, 06:48 PM UTC

   We are continuing to investigate this issue.

3. investigating Apr 30, 2026, 09:41 PM UTC

   We are continuing to investigate this issue.

4. resolved May 01, 2026, 05:38 AM UTC

   This incident has been resolved. Incident Start Time: 2026-04-29 19:35 UTC Incident End Time: 2026-05-01 01:30 UTC

Read the full incident report →

Started Apr 27, 2026, 12:29 PM UTC· resolved Apr 27, 2026, 01:00 PM UTC

1. investigating Apr 27, 2026, 12:29 PM UTC

   Ticket Number :: MNOC-63975 Services:: DI SMS 365 (iSMS) Description :: Our internal monitoring systems have detected an issue that may be causing delays in the delivery of MO (Mobile Originated), MT (Mobile Terminated), and DLR (Delivery Report) traffic. We are currently investigating it with the highest priority. Our technical teams are actively working to identify the root cause and implement a resolution as quickly as possible. We will continue to provide updates as more information becomes available. We appreciate your patience and understanding. Impact :: Mobile Terminating (MT) Traffic: Potential delay in delivery Mobile Originated (MO) Traffic: Potential delay in delivery DR Notification : Potential delay in delivery Incident Start Date & Time (GMT) : 27th April 2026 11:55 GMT If you have any questions, please contact the Operator Service NOC immediately at [email protected] or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

2. investigating Apr 27, 2026, 01:00 PM UTC

   Dear Clients, We are pleased to inform you that the issue with the isms platform has been resolved. We have monitored the results, and we confirm that the messages are processed without any delay. Incident Start Date & Time (GMT) :27th April 2026 11:55 GMT Incident End Date & Time (GMT) : 27th April 2026 12:40 GMT If you experience any issues during this Incident, please contact the Operator Service NOC immediately at [email protected] or +1 470.300.8394 (select 'support' from the menu, option 2 for Digital Interconnect and then option 1) and reference this notification.

3. resolved Apr 27, 2026, 01:00 PM UTC

   This incident has been resolved.

Read the full incident report →

Started Apr 24, 2026, 08:47 AM UTC· resolved Apr 24, 2026, 10:11 AM UTC

1. investigating Apr 24, 2026, 08:47 AM UTC

   We are currently observing delivery issues in Sweden - Telia. Incident Start Time: 2026-04-24 08:21 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 [email protected].

2. resolved Apr 24, 2026, 10:11 AM UTC

   This incident has been resolved. Incident Start Time: 2026-04-24 08:21 UTC Incident End Time: 2026-04-24 09:20 UTC

Read the full incident report →

Started Apr 24, 2026, 08:47 AM UTC· resolved Apr 24, 2026, 11:28 AM UTC

1. investigating Apr 24, 2026, 08:47 AM UTC

   We are currently observing delivery issues in Norway - Telia. Incident Start Time: 2026-04-24 08:21 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 [email protected].

2. resolved Apr 24, 2026, 11:28 AM UTC

   This incident has been resolved. Incident Start Time: 2026-04-24 08:21 UTC Incident End Time: 2026-04-24 09:06 UTC

Read the full incident report →

Started Apr 23, 2026, 05:54 PM UTC· resolved Apr 23, 2026, 11:27 PM UTC

1. investigating Apr 23, 2026, 05:54 PM UTC

   Ticket Number :: MNOC-63953 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 Start Date & Time (GMT) : 2026-04-23 17:40:37 GMT If you have any questions, please contact the Operator Service NOC immediately at [email protected] or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

2. investigating Apr 23, 2026, 06:02 PM UTC

   We are continuing to investigate this issue.

3. investigating Apr 23, 2026, 10:39 PM UTC

   We are continuing to investigate this issue. We will update once more information is available.

4. resolved Apr 23, 2026, 11:27 PM UTC

   We are pleased to inform you that the issue with the isms platform has been resolved. We have monitored the results and we confirm that the messages are getting processed without any delay. Incident Start Date & Time (GMT) : 23 April 2026 17:10 GMT. Incident End Date & Time (GMT) : 23 April 2026 23:11 GMT. We appreciate your patience and understanding. If you have any questions related to this Incident, please contact the Operator Service NOC immediately at [email protected] or +1 470.300.8394 (select 'support' from the menu, option 2 for Digital Interconnect and then option 1) and reference this notification.

Read the full incident report →

Started Apr 23, 2026, 02:24 PM UTC· resolved Apr 23, 2026, 07:04 PM UTC

1. investigating Apr 23, 2026, 02:24 PM UTC

   We are currently observing delivery issues in Uruguay - Antel. Incident Start Time: 2026-04-23 13:35 UTC Impact: Delayed or Failed 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 [email protected].

2. investigating Apr 23, 2026, 04:01 PM UTC

   We are continuing to investigate this issue.

3. resolved Apr 23, 2026, 07:04 PM UTC

   This incident has been resolved. Incident Start Time: 2026-04-23 13:35 UTC Incident End Time: 2026-04-23 17:34 UTC

Read the full incident report →

Started Apr 23, 2026, 12:07 PM UTC· resolved Apr 23, 2026, 01:30 PM UTC

1. investigating Apr 23, 2026, 12:07 PM UTC

   We are currently observing delivery issues O2 - UK Incident Start Time: 2026-04-23 11:16 UTC. Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

2. resolved Apr 23, 2026, 01:30 PM UTC

   This incident has been resolved Incident Start Time: 2026-04-23 11:16 UTC. Incident End Time: 2026-04-23 12:35 UTC.

Read the full incident report →

Started Apr 22, 2026, 10:30 PM UTC· resolved Apr 23, 2026, 01:04 AM UTC

1. investigating Apr 22, 2026, 10:30 PM UTC

   We are currently experiencing a performance degradation issues on our EU3 endpoint. To minimize impact, clients are advised to temporarily connect to the designated redundant EU1 endpoint for the duration of this issue. Clients can connect to our EU1 SMSC with the below FQDNs. Alternative Endpoints: eu1.smpp.api.sinch.com eu1.httpsms.api.sinch.com eu1.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 [email protected].

2. monitoring Apr 22, 2026, 11:00 PM UTC

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

3. resolved Apr 23, 2026, 01:04 AM UTC

   This incident has been resolved. Incident Start Time: 22-04-2026 20:12 UTC Incident End Time: 22-04-2026 22:30 UTC

Read the full incident report →

Started Apr 22, 2026, 02:43 PM UTC· resolved Apr 22, 2026, 03:39 PM UTC

1. investigating Apr 22, 2026, 02:43 PM UTC

   We are currently experiencing issues with Conversation API SMS channel in the US region. Incident Start Time: 2026-04-22 13:20 UTC Impact: SMS requests routed via the conversation API in the US region might be rejected or throttled.

2. monitoring Apr 22, 2026, 02:55 PM UTC

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

3. resolved Apr 22, 2026, 03:39 PM UTC

   This incident has been resolved Incident Start Time: 2026-04-22 13:20 UTC Incident End Time: 2026-04-22 15:00 UTC

Read the full incident report →

Started Apr 22, 2026, 02:17 PM UTC· resolved Apr 22, 2026, 08:20 PM UTC

1. investigating Apr 22, 2026, 02:17 PM UTC

   We are currently experiencing issues with Chatlayer in the US region. Incident Start Time: 2026-04-22 13:49 UTC Impact: Channels, Bot Engine and the Web User Interface in the US region.

2. investigating Apr 22, 2026, 03:26 PM UTC

   We are continuing to investigate this issue.

3. investigating Apr 22, 2026, 05:06 PM UTC

   We are continuing to investigate this issue.

4. monitoring Apr 22, 2026, 07:37 PM UTC

   Services are now restored and we continue doing sanity checks to make sure everything is working as expected. Incident Restoration Time: 2025-04-22 19:10 UTC

5. resolved Apr 22, 2026, 08:20 PM UTC

   This incident has been resolved. Incident Start Time: 2026-04-22 13:49 UTC Incident Restoration Time: 2026-04-22 19:10 UTC Incident End Time: 2026-04-22 19:10 UTC

Read the full incident report →

Started Apr 22, 2026, 07:30 AM UTC· resolved Apr 23, 2026, 02:30 PM UTC

1. monitoring Apr 22, 2026, 03:34 PM UTC

   Due to high traffic, the display and downloading and of statistics may experience temporary delays. Thank you for your understanding.

2. resolved Apr 23, 2026, 02:30 PM UTC

   This incident has been resolved.

Read the full incident report →

Started Apr 20, 2026, 10:20 AM UTC· resolved Apr 20, 2026, 10:35 AM UTC

1. investigating Apr 20, 2026, 10:20 AM UTC

   Ticket Number :: MNOC-63913 Services:: DI SMS 365 (iSMS) Description :: Our internal monitoring systems have detected an issue that may be causing delays in the delivery of MO (Mobile Originated), MT (Mobile Terminated), and DLR (Delivery Report) traffic. We are currently investigating it with the highest priority. Our technical teams are actively working to identify the root cause and implement a resolution as quickly as possible. We will continue to provide updates as more information becomes available. We appreciate your patience and understanding. Impact :: Mobile Terminating (MT) Traffic: Potential delay in delivery Mobile Originated (MO) Traffic: Potential delay in delivery DR Notification : Potential delay in delivery Incident Start Date & Time (GMT) : 20th April 2026 10:15 GMT If you have any questions, please contact the Operator Service NOC immediately at [email protected] or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

2. resolved Apr 20, 2026, 10:35 AM UTC

   Dear Clients, We are pleased to inform you that the issue with the isms platform has been resolved. We have monitored the results, and we confirm that the messages are processed without any delay. Incident Start Date & Time (GMT) :20th April 2026 10:15 GMT Incident End Date & Time (GMT) : 20th April 2026 10:20 GMT If you experience any issues during this Incident, please contact the Operator Service NOC immediately at [email protected] or +1 470.300.8394 (select 'support' from the menu, option 2 for Digital Interconnect and then option 1) and reference this notification.

Read the full incident report →

Started Apr 20, 2026, 10:03 AM UTC· resolved Apr 21, 2026, 01:50 PM UTC

1. investigating Apr 20, 2026, 10:03 AM UTC

   Sending WhatsApps messages through API is not working since we do not provide requirement fields to identify WhatsApps Template.

2. investigating Apr 20, 2026, 10:08 AM UTC

   WhatsApps sendings through web application is working.

3. identified Apr 20, 2026, 01:44 PM UTC

   The issue has been identified and a fix is being implemented.

4. identified Apr 21, 2026, 09:49 AM UTC

   We are continuing to work ona fix to this issue, it'll be deployed this afternoon.

5. monitoring Apr 21, 2026, 01:50 PM UTC

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

6. resolved Apr 21, 2026, 01:50 PM UTC

   This incident has been resolved.

Read the full incident report →

Started Apr 18, 2026, 01:20 AM UTC· resolved Apr 18, 2026, 07:09 PM UTC

1. investigating Apr 18, 2026, 01:20 AM UTC

   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 [email protected].

2. investigating Apr 18, 2026, 03:07 AM UTC

   We are continuing to investigate this issue.

3. investigating Apr 18, 2026, 06:39 AM UTC

   We are continuing to investigate this issue.

4. investigating Apr 18, 2026, 10:40 AM UTC

   We are continuing to investigate this issue.

5. resolved Apr 18, 2026, 07:09 PM UTC

   This incident has been resolved. Incident Start Time: 2026-04-18 00:23 UTC Incident End Time: 2026-04-18 16:00 UTC

Read the full incident report →

Started Apr 17, 2026, 09:30 AM UTC· resolved Apr 17, 2026, 05:22 PM UTC

1. investigating Apr 17, 2026, 09:30 AM UTC

   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.

2. investigating Apr 17, 2026, 11:08 AM UTC

   We are continuing to investigate this issue.

3. monitoring Apr 17, 2026, 12:06 PM UTC

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

4. resolved Apr 17, 2026, 05:22 PM UTC

   This incident has been resolved. Incident Start Time: 2026-04-17 08:00 UTC Incident End Time: 2026-04-17 12:20 UTC

Read the full incident report →

Started Apr 15, 2026, 06:21 PM UTC· resolved Apr 16, 2026, 05:56 AM UTC

1. investigating Apr 15, 2026, 06:21 PM UTC

   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 updates on this page. For any inquiries, please contact us at [email protected].

2. monitoring Apr 15, 2026, 08:11 PM UTC

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

3. monitoring Apr 15, 2026, 10:13 PM UTC

   We are continuing to monitor for any further issues.

4. monitoring Apr 16, 2026, 02:39 AM UTC

   We are continuing to monitor for any further issues.

5. resolved Apr 16, 2026, 05:56 AM UTC

   This incident has been resolved. Incident Start Time: 2026-04-15 18:21 UTC Incident End Time: 2026-04-16 05:16 UTC

Read the full incident report →

Started Apr 15, 2026, 10:57 AM UTC· resolved Apr 15, 2026, 01:00 PM UTC

1. investigating Apr 15, 2026, 10:57 AM UTC

   We are currently investigating an issue with creating message templates in Sinch Engage Legacy. Incident Start Time: 2026-04-15 10:10 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.

2. identified Apr 15, 2026, 12:15 PM UTC

   The issue has been identified and a fix is being implemented.

3. resolved Apr 15, 2026, 01:00 PM UTC

   This incident has been resolved. Incident Start Time: 2026-04-15 10:10 UTC Incident End Time: 2026-04-15 12:55 UTC

Read the full incident report →