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17%of 47 verified observed days had no reported provider issue
90-Day Trend
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 24Today
Legacy observation Operational Degraded Partial Outage Major Outage Maintenance No Data
Incident History
September 2026
Services | Operator Services | Potential delay in delivery of MO, MT and DLR | TT#MNOC-65291 (MNOC-65292)
A fix has been implemented. Queues are depleting and delays should be mitigated. Technical teams are monitoring for service stability.
identified
A network issue was identified which could result in certain customers observing a potential delay in delivery. Technical resources are engaged and actively working on repair of the issue. Updates will continue to be provided.
identified
Ticket Number: MNOC-65291
Services: SMSx, MM4
Description:
Currently, we are observing queues related to MO, MT and DLR traffic within our SMSx/MM4
Few customers may observe a potential delay in delivery for MO, MT and DLR traffic.
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
Report Manager Access: (remove if not applicable)
Report Manager Statistics : (remove if not applicable)
Incident Start Date & Time (GMT) : September 17, 06:45 UTC
If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.
We are currently observing delivery issues in Paraguay - Tigo
Incident Start Time: 2026-09-16 03:44 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.
The issue has been identified and we are working with the operator to fix the issue.
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 Cambodia - Smart Axiata
Incident Start Time: 2026-09-15 16:13 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.
We are currently observing delivery issues in Bolivia - Tigo
Incident Start Time: 2026-09-12 20:53 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.
A fix has been implemented and we are monitoring the results.
investigating
We are continuing to investigate this issue.
investigating
We are currently observing delivery issues in Bouygues Telecom - France.
Incident Start Time: 2026-09-12 19:34 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.
SMPP - USRedhot XML (mBlox)SMPP - CAENUM USHTTP - USHTTP USSMS (Legacy Sinch)REST - US
identified
The issue has been identified and a fix is being implemented.
investigating
Dear Client,
We are currently experiencing a performance degradation on our US1 site.
To minimize impact, clients are advised to temporarily connect to the designated redundant site US7 for the duration of this issue.
Affected Site: US1
Recommended Redundant Site: US7
Incident Start Time: 2026-09-09 04:13 UTC
Our engineers are currently investigating and additional information will follow as it becomes available.
We are currently observing delivery issues in Italy - Poste Mobile
Incident Start Time: 2026-09-08 20:08 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.
A fix has been implemented and we are monitoring the results.
investigating
We are currently observing delivery issues in Mexico - AT&T
Incident Start Time: 2026-09-07 23:56 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.
We are currently observing delivery issues in Romania.
Incident Start Time: 2026-09-07 14:17 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 O2 - UK
minorSource not attested
Last archived state: resolved
View archived record details
investigating
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.
Degradation - EU3 Endpoint
minorSource 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 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 ...
Conversation API SMS Channel - US region outage
majorSource 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 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.
Chatlayer - US region outage
criticalSource not attested
Last archived state: resolved
View archived record details
monitoring
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
investigating
We are continuing to investigate this issue.
investigating
We are continuing to investigate this issue.
investigating
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.
Delivery Issue Sweden - Telia
minorSource 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 currently observing delivery issues Sweden - Telia
Incident Start Time: 2026-04-22 07:59 UTC.
Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts
We will update as soon as we have more information.
Potential latencies on SMS Delivery Stats
minorSource not attested
Last archived state: resolved
View archived record details
monitoring
Due to high traffic, the display and downloading and of statistics may experience temporary delays. Thank you for your understanding.
Delivery Issue Sweden - Telia
minorSource not attested
Last archived state: resolved
View archived record details
investigating
We are currently observing delivery issues in Sweden - Telia
Incident Start Time: 2026-04-21 15:00 UTC
Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts
We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
Customer Support - Ticketing System
minorSource not attested
Last archived state: resolved
View archived record details
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.
As an alternative in the meantime, please raise all tickets via our ticketing portal at support.sinch.com.
DI SMS 365 (iSMS) | Operator Services | Potential delay in delivery of MO, MT and DR || MNOC-63913
Source not attested
Last archived state: resolved
View archived record details
investigating
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 b...
WhatsApps sending through API
majorSource not attested
Last archived state: resolved
View archived record details
identified
We are continuing to work ona fix to this issue, it'll be deployed this afternoon.
identified
The issue has been identified and a fix is being implemented.
investigating
WhatsApps sendings through web application is working.
investigating
Sending WhatsApps messages through API is not working since we do not provide requirement fields to identify WhatsApps Template.
