Sinch Emergency Maintenance - EU3
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 16, 2026 - 21:00 UTC
Scheduled - We will perform an emergency network maintenance on our EU3 Site during the below window.

Type: Emergency Maintenance
Start Time: 2026-03-16 21:00
End Time: 2026-03-17 03:00

Impact: Customers may experience multiple brief connectivity issues but will be able to reconnect immediately towards the impacted endpoints listed below.

Impacted endpoints:
eu3.smpp.api.sinch.com
eu3.httpsms.api.sinch.com
eu3.httplookup.api.sinch.com

To avoid connectivity issues we recommend connecting to the below endpoints during the duration of this maintenance.

Available endpoints:
eu1.smpp.api.sinch.com
eu1.httpsms.api.sinch.com
eu1.httplookup.api.sinch.com

We appreciate your patience and apologize for any inconvenience cause during this period.

Please contact [email protected] if you have any questions or concerns
Mar 16, 2026 21:00 - Mar 17, 2026 03:00 UTC
External Connectivity Operational
SMS - APAC Operational
SMS - EMEA Operational
SMS - LATAM Operational
SMS - CA - ShortCode Operational
SMS - CA - Toll Free Operational
SMS - US - ShortCode Operational
SMS - US - Toll Free Operational
SMS - US - 10DLC Operational
MMS - US Operational
MMS - US - Toll Free Operational
MMS - US - 10DLC Operational
MMS - AU Operational
MMS - APAC Operational
Voice Operational
Data Calling Operational
Phone Calling (PSTN) Operational
Video Calling Operational
SIP Trunk Operational
Conversation API Operational
Core Operational
WhatsApp Operational
SMS Operational
RCS Operational
MMS Operational
Messenger Operational
Instagram Operational
Viber Bot Operational
Viber Messaging Operational
Telegram Operational
Kakaotalk Operational
Line Operational
WeChat Operational
Apple Messages Operational
Omnichannel Connector Operational
Batch API Operational
Sinch Push Operational
Sinch Chat Operational
Template Management API Operational
Smart Conversations Operational
Verification Operational
Flash Call Verification Operational
SMS Verification Operational
Verification Text to Speech Operational
Messaging APIs Under Maintenance
SMPP - US Operational
SMPP - EU Under Maintenance
SMPP - AU Operational
SMPP - CA Operational
SMPP - BR Operational
HTTP - US Operational
HTTP - EU Under Maintenance
HTTP - AU Operational
HTTP - CA Operational
HTTP - BR Operational
REST - US Operational
REST - EU Operational
REST - AU Operational
REST - CA Operational
REST - BR Operational
MMS - US Operational
MMS - AU Operational
MMS - CA Operational
RCS - US Operational
RCS - EU Operational
SPAN - US Operational
SMS Template Management API - US Operational
US Disconnect File Service - US Operational
🔗 EXTERNAL - Campaign Registry status - US Operational
sFTP2SMS - BR Operational
SMS Template Management API - EU Operational
Provisioning API Operational
Provisioning API Core Operational
WhatsApp Provisioning API Operational
Webhook Provisioning API Operational
Bundles Provisioning API Operational
KakaoTalk Provisioning API Operational
RCS Provisioning API Operational
Sinch DI Services Operational
MM4 (MMS 365) Operational
MM7 (MMS 365) Operational
Message Manager Operational
E-mail 365 Operational
SMS 365 Operator RoW Operational
SMS 365 Operator US Operational
International SMS 365 Operational
Lookup API Endpoints Under Maintenance
ENUM AU Operational
HTTP AU Operational
ENUM EU Under Maintenance
HTTP EU Under Maintenance
ENUM US Operational
HTTP US Operational
ENUM CA Operational
HTTP CA Operational
HTTP BR Operational
Contact Pro Operational
Contact Pro - AF (South Africa) Operational
Contact Pro - AU (Australia) Operational
Contact Pro - EU (Europe) Operational
Contact Pro - NA (North America) Operational
Migrated APIs Operational
Redhot XML (mBlox) Operational
E3 (Dialogue) Operational
SMS (Legacy Sinch) Operational
HTTP API (TWW) Operational
Numbers API Operational
Dashboard.sinch.com Operational
Payment Operational
SMS Administration Operational
Numbers Administration Operational
Analytics Operational
Customer Support Operational
2FA Operational
US Campaigns Operational
Login/Sign up Operational
Campaigns Operational
Campaigns (France 🇫🇷) Operational
Campaigns API (France 🇫🇷) Operational
sFTP Connectors (France 🇫🇷) Operational
Campaigns (Europe 🇪🇺) Operational
Campaigns API (Europe 🇪🇺) Operational
sFTP Connectors (Europe 🇪🇺) Operational
Campaigns (North America 🇺🇸 / 🇨🇦) Operational
Campaigns API (North America 🇺🇸 / 🇨🇦) Operational
sFTP Connectors (North America 🇺🇸 / 🇨🇦) Operational
Elastic SIP Trunking Operational
API Operational
Inbound Calling Operational
Outbound Calling Operational
International Calling Operational
9-1-1 / Emergency Services Operational
User Interface Operational
Fax API Operational
API Operational
Inbound Faxing Operational
Outbound Faxing Operational
Notifications Operational
Fax to Email Operational
User Interface Operational
Sinch Engage Operational
The Hub Operational
Rest API Operational
Webhooks Operational
SMPP Operational
Sinch Engage (Legacy) Operational
Sinch Engage Integrations Operational
Shopify Operational
Hubspot Operational
Netsuite Operational
Zoho CRM Operational
Big Commerce Operational
Salesforce Operational
Active Campaign Operational
Microsoft Dynamics Operational
Number Lookup API v2 Operational
API Operational
User Interface Operational
Chatlayer Operational
Chatlayer Bot Engine - US Operational
Chatlayer Voice Engine - US Operational
Chatlayer App Integrations - US Operational
Chatlayer Bot Engine - EMEA Operational
Chatlayer Voice Engine - EMEA Operational
Chatlayer App Integrations - EMEA Operational
Chatlayer Bot Engine - South America Operational
Chatlayer Voice Engine - South America Operational
Chatlayer App Integrations - South America Operational
Chatlayer Bot Engine - India Operational
Chatlayer App Integrations - India Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance

Scheduled Maintenance

External Maintenance - United Kingdom 3 UK Mar 17, 2026 21:00 - Mar 18, 2026 05:00 UTC

Update - We will be undergoing scheduled maintenance during this time.
Mar 10, 2026 - 13:10 UTC
Scheduled - United Kingdom 3 UK has scheduled a maintenance.
Impact: Clients may experience delayed or failed MT/MO traffic towards the United Kingdom 3 UK.

Maintenance start time: 2026-03-17 21.00 UTC
Maintenance end time: 2026-03-18 05.00 UTC
Mar 18, 2026 - 13:09 UTC

Planned Maintenance - MMS Mar 19, 2026 09:00-09:15 UTC

We are writing to inform you that as part of our continuous efforts to improve the performance and reliability of our platform, we will be performing a scheduled maintenance on MMS platform at the times specified below. 

Type: Maintenance - MMS 
Start Time: 2026-03-19 09:00 UTC 
End Time: 2026-03-19 09:15 UTC

Impact MMS: MMS US, MMS AU, MMS CA. Messages will be Queued and will be processed post upgrade. We expect intermittent delays during the maintenance window.

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled, we will advise you accordingly.

Please contact [email protected] should you require further information or assistance.
Posted on Mar 05, 2026 - 15:47 UTC

External Maintenance - 3 - Ireland Mar 23, 2026 22:00 - Mar 24, 2026 06:00 UTC

3 - Ireland has scheduled a maintenance.
Impact: Clients may experience delayed or failed MT/MO traffic towards 3 Ireland.

Maintenance start time: 2026-03-23 22.00 UTC
Maintenance end time: 2026-03-24 06.00 UTC
Posted on Mar 11, 2026 - 12:58 UTC

Sinch Maintenance - EU4 Network Hub Mar 24, 2026 02:00-05:00 UTC

Dear Client,

We are reaching out to inform you that as part of our continuous efforts to improve the performance and reliability of our services, we will be performing maintenance at our EU4 site on the schedule below.

Type: Network Maintenance

Start Time: March 24th, 2026 02:00 UTC
End Time: March 24th, 2026 05:00 UTC

Affected Site: EU4
Impact: Clients may experience delays for MT and MO to and from the following operators for up to 15 minutes during the maintenance window.

Orange France
Eir Ireland
Plus Poland

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly. Please contact [email protected] should you require further information or assistance.
Posted on Mar 09, 2026 - 15:38 UTC

Sinch Maintenance - Conversation API Mar 25, 2026 08:00-10:00 UTC

We will be performing a planned maintenance on our Conversation API platform to strengthen our infrastructure. This will change the IPs associated with the Base URL of our regional endpoints.

Type: Planned Maintenance
Start Time: 2026-03-25 08:00 UTC
End Time: 2026-03-25 10:00 UTC

For EU1 environment and "eu.conversation.api.sinch.com" FQDN IPs will change
from OLD:
- 34.246.12.78
- 52.18.1.217
- 52.50.172.104
to NEW:
- 34.247.10.251
- 34.243.80.241
- 63.33.21.26

For BR1 environment and "br.conversation.api.sinch.com " FQDN IPs will change
from OLD:
- 177.71.243.105
- 18.228.234.250
- 18.229.82.177
to NEW:
- 18.229.217.42
- 18.230.233.81
- 54.94.159.24

For US1 environment and "us.conversation.api.sinch.com " FQDN IPs will change
from OLD:
- 44.196.133.251
- 52.201.9.233
- 54.243.120.247
to NEW:
- 52.22.60.183
- 52.71.26.226
- 44.221.23.197

IMPORTANT!
If you have implemented IP whitelisting (allowlisting) rules on your network or firewalls that restrict outbound traffic to specific Sinch IP addresses, you must update your firewall rules and/or connection configuration to include the new IP addresses before the above mentioned window.

If you have any questions please do not hesitate to reach out to [email protected]
Posted on Mar 05, 2026 - 16:06 UTC

Sinch Maintenance - Token Service (auth.sinch.com) Mar 26, 2026 09:00-10:30 UTC

We are writing to inform you that as part of our continuous efforts to improve the performance and reliability of our platform, we will be performing a scheduled maintenance on our Token Service (auth.sinch.com) at the times specified below.

Type: Planned Maintenance
Start Time: 2026-03-26 09:00 UTC
End Time: 2026-03-26 10:30 UTC

Impact: Customers may experience 2 periods of ~2-3 minutes of intermittent HTTP 500 responses when attempting to generate new tokens during this maintenance, already existing tokens will not be impacted.

For any questions please reach out to [email protected]
Posted on Mar 12, 2026 - 15:33 UTC

Planned Maintenance - MMS Mar 30, 2026 08:00-10:00 UTC

We are writing to inform you that as part of our continuous efforts to improve the performance and reliability of our platform, we will be performing a scheduled maintenance on our MMS platform at the times specified below.

Type: Maintenance - MMS
Start Time: 2026-03-30 08:00 UTC
End Time: 2026-03-30 10:00 UTC

Impact MMS: MMS US, MMS AU, MMS CA.
Messages will be queued and are processed post upgrade. We expect intermittent delays during the maintenance window.

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled, we will advise you accordingly.

Please contact [email protected] should you require further information or assistance.
Posted on Mar 12, 2026 - 16:36 UTC

Singapore Regulatory Compliance Maintenance - A2P SMS APIs - TLS 1.3 Requirement Apr 1, 2026 00:00-01:00 UTC

The Infocomm Media Development Authority (IMDA) of Singapore has mandated the use of TLS (Transport Layer Security) 1.3 for all API connections handling A2P SMS traffic, effective April 1, 2026.

To ensure compliance and prevent any possible service disruption, all customers sending SMS traffic to Singapore must update their systems to support TLS 1.3 before this deadline.

Sinch Platform Readiness:
Our commitment is to provide a secure and resilient infrastructure.
We have already enabled full TLS 1.3 support across our global A2P SMSC infrastructure. The final site, EU3 (IP 93.158.78.4), will be fully compliant to TLS 1.3 by end of February 2026, well ahead of the deadline.

Required Customer Action:
Verify Your Configuration: We strongly urge you to begin transitioning your systems to use TLS 1.3 for connections to Sinch immediately.

Compliance Deadline:
In accordance with IMDA requirements, connections using TLS 1.2 for traffic to Singapore should not be supported after April 1, 2026. To avoid any possible interruption of service to Singapore, you must complete your transition before this date.

Our team is ready to help ensure your transition is smooth and seamless.
Please do not hesitate to contact our customer support or account manager if you have any questions or require assistance.
Posted on Nov 04, 2025 - 12:48 UTC

Sinch Internal Maintenance - SSL Certificate Update Apr 7, 2026 01:00-03:00 UTC

Dear Client,

Sinch will be performing a scheduled maintenance to renew the SSL certificate for the callback.sinch.com Certificate

Type: Scheduled Maintenance
Maintenance: SSL Certificate Updates
Start Time: 01:00 UTC
End Time: 03:00 UTC
Impact: Customers using callback.sinch.com for mTLS

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly.

Download the certificate files here for callback.sinch.com
https://clxgroup.sharepoint.com/:f:/s/CLX_Support_Anonymous_link/IgDu5APEHt5UTJw8PjBgpvvXAcJ6hJaffaMmPjlvvKOJrzk

Please contact [email protected] should you require further information or assistance.

Sincerely,
Sinch
Posted on Feb 18, 2026 - 20:27 UTC
Mar 17, 2026

No incidents reported today.

Mar 16, 2026
Delivery Issue Brazil - Algar Telecom
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-16 04:00 UTC
Incident End Time: 2026-03-16 18:47 UTC
Mar 16, 21:54 UTC
Update - We are continuing to investigate this issue.
Mar 16, 14:42 UTC
Update - We are continuing to investigate this issue.
Mar 16, 10:01 UTC
Update - We are continuing to investigate this issue.
Mar 16, 07:00 UTC
Investigating - We are currently observing delivery issues in Brazil - Algar Telecom.

Incident Start Time: 2026-03-16 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.
Mar 16, 05:39 UTC
DI SMS 365 (SMSx) | Operator Services | Potential delay in delivery of MO, MT and DR | TT#MNOC-63424
Resolved - Dear All,

This incident 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) : 07th Mar 2026, 18:56 hrs
Incident End Date & Time (GMT) : 11th Mar 2026, 1:06 hrs

We appreciate your patience and understanding.

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.
Mar 16, 21:51 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
Mar 8, 01:07 UTC
Update - We are still continuing to investigate this issue. We will provide update as more information becomes available.
Mar 7, 22:32 UTC
Update - We are continuing to investigate this issue.
Mar 7, 20:20 UTC
Update - 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.
Mar 7, 20:09 UTC
Investigating - Ticket Number :: MNOC-63424
Services:: DI MMS 365 - SMSx

Description :: Monitoring NOC is observing potential delay in delivery of messages. 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

Incident Start Date & Time (GMT) : 07th Mar 2026, 18:56 hrs

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.
Mar 7, 19:14 UTC
External Maintenance - T-Mobile United States
Completed - The scheduled maintenance has been completed.
Mar 16, 11:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 16, 03:00 UTC
Scheduled - T-Mobile United States has scheduled a maintenance.

Impact SMS & MMS: Clients may experience delayed or failed Short Code and 10DLC MT/MO traffic towards T-Mobile US

Maintenance start time: 2026-03-16 03:00 UTC
Maintenance end time: 2026-03-16 11:00 UTC
Mar 12, 19:12 UTC
DI MMS 365 (MM7) | Operator Services | Application and Database Maintenance | PCR Number #PCRSDI-12124
Completed - The scheduled maintenance has been completed.
Mar 16, 10:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 16, 06:00 UTC
Scheduled - Services :: DI MMS 365 (MM7)
PCR Number:: PCRSDI-12124

Start Date and Time (GMT) :: Mar 16, 2026, 6:00 AM
End Date and Time (GMT) :: Mar 16, 2026, 10:00 AM

Impact
Mobile Terminating (MT) Traffic: Potential latency
Mobile Originated (MO) Traffic: Potential latency
DR Notification: Potential latency

Description:
Sinch Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal applications and database.

If you experience any issues during this maintenance , 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.
Mar 12, 22:41 UTC
Mar 15, 2026
Delivery Issue Netherlands - Odido
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-15 14:17 UTC
Incident End Time: 2026-03-15 15:45 UTC
Mar 15, 15:48 UTC
Investigating - We are currently observing delivery issues in Netherlands - Odido.

Incident Start Time: 2026-03-15 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.
Mar 15, 15:04 UTC
Chatlayer Service Disruption
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-15 08:00 UTC
Incident End Time: 2026-03-15 13:46 UTC
Mar 15, 14:54 UTC
Monitoring - A fix has been implemented and we are monitoring the results.

Restoration Time: 2026-03-15 13:00 UTC
Mar 15, 13:09 UTC
Update - We are continuing to investigate this issue.
Mar 15, 12:33 UTC
Investigating - We are currently experiencing a service disruption where old messages are regenerated without end user interaction.
We are actively working on resolving this issue and further updates will be provided as soon as we have more information to share.

Incident Start Time: 2026-03-15 8:00 UTC
Impact: Old conversations appearing as new in the History panel
Mar 15, 12:25 UTC
DI E-Mail 365 | Application Maintenance | PCR Number # PCRSDI-12129
Completed - The scheduled maintenance has been completed.
Mar 15, 04:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 15, 02:00 UTC
Scheduled - Services :: DI E-Mail 365
PCR Number :: PCRSDI-12129

Start Date and Time (GMT):: 15th Mar 2026 02:00 UTC.
End Date and Time (GMT):: 15th Mar 2026 04:00 UTC.

Description:
Email365 – crowdstrike sensor updates for multiple email modules .
This update is to upgrade crowdstrike sensors on host servers .
Zero/No impact on traffic .

Impact:
No impact .

If you experience any issues during this maintenance , 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.
Mar 3, 16:47 UTC
Mar 14, 2026
Delivery Issue Philippines - Globe Telecom
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-13 19:16 UTC
Incident Start End: 2026-03-13 22:12 UTC
Mar 14, 00:24 UTC
Update - We are continuing to investigate this issue.
Mar 13, 21:33 UTC
Investigating - We are currently observing delivery issues in Philippines - Globe Telecom.

Incident Start Time: 2026-03-13 19:16 UTC

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 13, 20:02 UTC
Mar 13, 2026
Service Degradation - Customer Dashboard - Message Search
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-13 10:50 UTC
Incident End Time: 2026-03-13 14:00 UTC
Mar 13, 14:08 UTC
Investigating - We are currently facing a service degradation on the customer dashboard, Dashboard.sinch.com.

Impact: Customer may experience missing recent data when performing searches with the Message Search tool on dashboard.sinch.com

Our engineering team is working to restore full functionality as soon as possible.

Incident Start Time: 2026-03-13 10:50 UTC

For any inquiries, please contact [email protected].
Mar 13, 12:30 UTC
External Maintenance - SMS and MMS
Completed - The scheduled maintenance has been completed.
Mar 13, 10:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 13, 04:00 UTC
Scheduled - An external supplier has scheduled a maintenance.

Impact SMS: Clients may experience delayed or failed 10DLC MT/MO traffic towards the United States and Canada

Impact MMS: Clients may experience delayed or failed 10DLC MT/MO traffic towards the United States

Maintenance Start Time: 2026-03-13 04:00 UTC
Maintenance End Time: 2026-03-13 10:00 UTC
Mar 3, 11:59 UTC
Mar 12, 2026
Service Degradation - Customer Dashboard
Resolved - Dear Client,

We are retroactively writing to inform you of an incident affecting number purchases on our customer dashboard, Dashboard.sinch.com.

Incident Start Time: 2026-03-12 13:47 UTC
Incident Start Time: 2026-03-12 16:56 UTC

The functionality has been restored and there should be no further issues.

We appreciate your patience and apologize for any inconveniences during this time.
Mar 12, 17:40 UTC
Delivery Issue Isle of Man - Manx Telecom
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-10 15:19 UTC
Incident End Time: 2026-03-12 14:15 UTC
Mar 12, 16:41 UTC
Investigating - We are currently observing delivery issues in Isle of Man - Manx Telecom.

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 12, 12:17 UTC
Messaging Service Degradation (APAC / EU)
Resolved - Dear Client,

We are writing to retroactively inform you of an incident affecting Sinch Engage messaging and social channel functionality across the APAC and EU regions.

Incident Start Time: 2026-03-12 14:55 UTC
Incident End Time: 2026-03-12 16:00 UTC

Clients using the service on the affected regions may have experienced:
- Slow loading of the Social Channels page
- WhatsApp senders not appearing in the sender configuration
- Delays or intermittent issues with messaging services

Functionality has been restored and no further issues should be observed.

We appreciate your patience and apologize for any inconveniences experienced as a result of this issue.
Mar 12, 16:32 UTC
Sinch Maintenance - AT&T US 10DLC
Completed - The scheduled maintenance has been completed.
Mar 12, 16:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 12, 15:00 UTC
Scheduled - Dear Client,

Sinch will be performing a scheduled maintenance on our 10DLC Product at the times specified below.

As part of this update, clients may see a brief delay during delivery for 10DLC Numbers sending to AT&T US Devices.

Start Time: 2026-03-12 15:00 UTC
End Time: 2026-03-12 16:00 UTC

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly.
Feb 26, 16:55 UTC
DI SMS 365 (SMSx) | Operator Services | Potential delay in delivery of MO, MT and DR | TT#MNOC-63473
Resolved - Dear Clients,

We are pleased to inform you that the issue with the SMSx 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) : 12th Mar 2026, 12:22 hrs
Incident End Date & Time (GMT) : 12th Mar 2026, 13:28 hrs

We appreciate your patience and understanding.
Mar 12, 14:30 UTC
Monitoring - Dear Clients,

We are writing to inform you that queues have been cleared and traffic is back to normal.

We will continue to monitor and update on further improvements.
Mar 12, 13:55 UTC
Investigating - Ticket Number :: MNOC-63473
Services:: DI SMS 365 - SMSx

Description :: Monitoring NOC is observing potential delay in delivery of messages. 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

Incident Start Date & Time (GMT) : 12th Mar 2026, 12:22 hrs

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.
Mar 12, 13:10 UTC
Delivery Issue Italy - Plintron
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-12 10:50 UTC

Incident End Time: 2026-03-12 12:50 UTC
Mar 12, 13:21 UTC
Investigating - We are currently observing delivery issues in Italy - Plintron.

Incident Start Time: 2026-03-12 10:50 UTC

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 12, 11:25 UTC
Campaigns Application Maintenance
Completed - The scheduled maintenance has been completed.
Mar 12, 09:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 12, 08:00 UTC
Scheduled - Keep your clients in the conversation flow using RCS's webview! Set half, tall, or fullscreen for the best experience
Mar 11, 16:35 UTC
Mar 11, 2026
Campaigns Application Maintenance
Completed - The scheduled maintenance has been completed.
Mar 11, 15:46 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 11, 15:16 UTC
Scheduled - Improve operational processes. For account deletion.
Mar 11, 15:03 UTC
Delivery Issue Djibouti - Evatis
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-11 04:57 UTC
Incident End Time: 2026-03-11 07:05 UTC
Mar 11, 08:11 UTC
Update - We are continuing to investigate this issue.
Mar 11, 06:27 UTC
Investigating - We are currently observing delivery issues in Djibouti - Evatis.

Incident Start Time: 2026-03-11 04:57 UTC

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 11, 05:13 UTC
Mar 10, 2026
Campaigns Application Maintenance
Completed - The scheduled maintenance has been completed.
Mar 10, 16:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 10, 15:00 UTC
Scheduled - Application maintenance
Mar 10, 14:44 UTC
Delivery Issue Germany - O2
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-10 13:34 UTC
Incident End Time: 2026-03-10 14:34 UTC
Mar 10, 15:24 UTC
Investigating - We are currently observing delivery issues in Germany - O2.

Incident Start Time: 2026-03-10 13:34 UTC

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 10, 14:00 UTC
Campaigns Application Maintenance
Completed - The scheduled maintenance has been completed.
Mar 10, 14:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 10, 13:01 UTC
Scheduled - Application maintenance
Mar 10, 12:55 UTC
Incident Notification – Sinch Contact Pro (EU)
Resolved - This incident has been resolved.
Mar 10, 13:06 UTC
Investigating - We are currently investigating an issue affecting Sinch Contact Pro. Customers may experience service disruption or degraded performance.

Our operations team is actively working to identify the root cause.
Incident Start time: 08:00 UTC

Thank you for your patience.
Sinch Contact Pro Team
Mar 10, 12:02 UTC
External Maintenance - SMS
Completed - The scheduled maintenance has been completed.
Mar 10, 13:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 10, 06:00 UTC
Scheduled - An external supplier has scheduled a maintenance.

Impact SMS: Clients may experience delayed or failed 10DLC MT/MO traffic towards the United States and Canada

Maintenance Start Time: 2026-03-10 06:00 UTC
Maintenance End Time: 2026-03-10 13:00 UTC

We appreciate your patience and apologise for any inconvenience experienced during this maintenance period.
If for any reason the maintenance is extended or cancelled, we will advise you accordingly.
Mar 4, 13:07 UTC
Campaigns Application Maintenance
Completed - The scheduled maintenance has been completed.
Mar 10, 11:20 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 10, 10:45 UTC
Scheduled - Technical maintenance
Mar 10, 10:20 UTC
DI SMS 365 (iSMS) | Operator Services | Application Maintenance | PCR Number # PCRSDI-12128
Completed - The scheduled maintenance has been completed.
Mar 10, 10:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 10, 05:30 UTC
Scheduled - Services: DI SMS 365 (iSMS)
PCR Number: PCRSDI-12128

Start Date and Time (GMT) :: Mar 10, 2026, 5:30 Hrs
End Date and Time (GMT) :: Mar 10, 2026, 10:30 Hrs

Impact
Mobile Terminating (MT) Traffic: Potential latency
Mobile Originated (MO) Traffic: Potential latency
DR Notification: Potential latency

Description:
Sinch Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal applications.

If you experience any issues during this maintenance, 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.
Mar 5, 21:27 UTC
DI MMS 365 (MM7) | Operator Services | Network Maintenance | PCR Number #PCRSDI-12131
Completed - The scheduled maintenance has been completed.
Mar 10, 08:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 10, 06:01 UTC
Scheduled - Services :: DI MMS 365 (MM7)
PCR Number:: PCRSDI-12131

Start Date and Time (GMT) :: Mar 10, 2026, 6:00 Hrs.
End Date and Time (GMT) :: Mar 10, 2026, 8:00 Hrs.

Impact
Mobile Terminating (MT) Traffic: Potential latency
Mobile Originated (MO) Traffic: Potential latency
DR Notification: Potential latency

Description:
Sinch Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal applications.

If you experience any issues during this maintenance, 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.
Mar 5, 21:40 UTC
Delivery Issue Djibouti - Evatis
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-09 20:11 UTC
Incident End Time: 2026-03-10 00:56 UTC
Mar 10, 02:18 UTC
Update - We are continuing to investigate this issue.
Mar 10, 00:02 UTC
Investigating - We are currently observing delivery issues in Evatis - Djibouti.

Incident Start Time: 2026-03-09 20:11 UTC.

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 9, 22:37 UTC
DI SMS 365 (iSMS) | Operator Services | Potential delay in delivery of MO, MT and DR | TT#MNOC-63436
Resolved - Please be informed that the traffic has been restored.
Mar 10, 01:14 UTC
Update - We are continuing to investigate this issue.
We will let you know on the update once more information is available.

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.
Mar 9, 22:43 UTC
Investigating - Ticket Number :: MNOC-63436
Services:: DI SMS 365 - iSMS

Description :: Monitoring NOC is observing potential delay in delivery of messages. 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

Incident Start Date & Time (GMT) : 09th Mar 2026, 20:22 hrs

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.
Mar 9, 20:50 UTC
Mar 9, 2026
External Maintenance - Singapore - M1 Singapore
Completed - The scheduled maintenance has been completed.
Mar 9, 21:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 9, 18:00 UTC
Scheduled - M1 Singapore has scheduled a maintenance.

Impact: Clients may experience delayed or failed MT/MO traffic towards M1 Singapore.

Maintenance start time: 2026-03-09 18:00 UTC
Maintenance end time: 2026-03-09 21:00 UTC
Mar 4, 03:31 UTC
Sinch Engage - Inbox Degradation
Resolved - This incident has been resolved.

Start Time (UTC): 2026-03-09 13:20 UTC
End Time (UTC): 2026-03-09 16:52 UTC
Mar 9, 16:58 UTC
Identified - We’re aware of an issue in our inbox at the moment, affecting new conversations, reopening a conversation or switching assignee by sending a message.

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

Start Time (UTC): 2026-03-09 13:20 UTC

We apologize for the inconvenience and appreciate your patience while we are working to resolve the issue.
Mar 9, 16:44 UTC
Campaigns Application Maintenance
Completed - The scheduled maintenance has been completed.
Mar 9, 16:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 9, 15:10 UTC
Scheduled - Application maintenance
Mar 9, 15:01 UTC
Campaigns Application Maintenance
Completed - The scheduled maintenance has been completed.
Mar 9, 14:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 9, 13:00 UTC
Scheduled - Application Maintenance
Mar 9, 11:41 UTC
Campaigns Application Maintenance
Completed - The scheduled maintenance has been completed.
Mar 9, 11:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 9, 10:30 UTC
Scheduled - Bug fix on API v2 while fetching RCS campaigns
Mar 9, 10:12 UTC
Delivery Issue Mongolia - Unitel
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-08 17:30 UTC
Incident End Time: 2026-03-08 23:45 UTC
Mar 9, 02:11 UTC
Update - We are continuing to investigate this issue.
Mar 9, 02:03 UTC
Update - We are continuing to investigate this issue.
Mar 8, 21:45 UTC
Update - We are continuing to investigate this issue.
Mar 8, 19:43 UTC
Investigating - We are currently observing delivery issues in Mongolia - Unitel

Incident Start Time: 2026-03-08 17:30 UTC

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 8, 18:34 UTC
Mar 8, 2026
DI E-Mail 365 | Application Maintenance | PCR Number # PCRSDI-12107
Completed - The scheduled maintenance has been completed.
Mar 8, 09:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 8, 07:30 UTC
Scheduled - Services :: DI E-Mail 365
PCR Number :: PCRSDI-12107

Start Date and Time (GMT):: 8th Mar 2026 02:00 UTC.
End Date and Time (GMT):: 8th Mar 2026 04:00 UTC.

Description:
Email365 - AMI update – rest modules .
This AMI update is to upgrade the OS to latest version with updated security updates .
Zero/No impact on traffic .

Impact:
No impact .

If you experience any issues during this maintenance , 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.
Feb 12, 06:40 UTC
Mar 7, 2026
Delivery Issue Bulgaria - Vivacom
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-07 16:57 UTC
Incident Start Time: 2026-03-07 18:14 UTC
Mar 7, 18:59 UTC
Investigating - We are currently observing delivery issues in Bulgaria - Vivacom

Incident Start Time: 2026-03-07 16:57 UTC
Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 7, 17:49 UTC
Delivery Issue United States - Google Voice
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-06 02:00 UTC
Incident End Time: 2026-03-07 11:51 UTC
Mar 7, 13:41 UTC
Update - We are continuing to monitor for any further issues.
Mar 6, 23:14 UTC
Update - We are continuing to monitor for any further issues.
Mar 6, 14:12 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
Mar 6, 10:02 UTC
Update - We are continuing to investigate this issue.
Mar 6, 06:14 UTC
Investigating - We are currently observing delivery issues in United States - Google Voice.

Incident Start Time: 2026-03-06 02:00 UTC

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 6, 04:49 UTC
EU1 Site Degradation
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-07 01:54 UTC
Incident End Time: 2026-03-07 09:47 UTC
Mar 7, 10:34 UTC
Update - We are continuing to investigate this issue.
Mar 7, 06:56 UTC
Update - We are continuing to investigate this issue.
Mar 7, 04:06 UTC
Investigating - We are currently experiencing a degradation on our EU1 site.

Incident Start Time: 2026-03-07 01:54 UTC

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 7, 02:20 UTC
EU1 and EU3 Sites Degradation
Resolved - We are writing to inform you that we had experienced a degradation on our EU1 and EU3 sites.

Impact: Failed/ Delayed delivery receipts.

Incident start time: 2026-03-07 01:09 UTC
Incident end time: 2026-03-07 01:20 UTC
Mar 7, 00:09 UTC
Mar 6, 2026
External Maintenance - Singapore - MobileOne
Completed - The scheduled maintenance has been completed.
Mar 6, 21:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 6, 18:00 UTC
Scheduled - Singapore MobileOne has scheduled a maintenance.

Maintenance Start Time: 2026-03-06 18:00 UTC
Maintenance End Time: 2026-03-06 21:00 UTC
Mar 6, 11:38 UTC
Delivery Issue Germany - O2
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-06 00:00 UTC
Incident End Time: 2026-03-06 15:34 UTC
Mar 6, 18:40 UTC
Update - We are continuing to investigate this issue.
Mar 6, 12:15 UTC
Update - We are continuing to investigate this issue.
Mar 6, 07:13 UTC
Investigating - We are currently observing delivery issues in Germany - O2.

Incident Start Time: 2026-03-06 00:00 UTC

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 6, 06:03 UTC
Delivery Issue United States - Verizon Wireless
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-06 04:20 UTC
Incident End Time: 2026-03-06 15:07 UTC
Mar 6, 15:57 UTC
Monitoring - We can observe that performance is restored.

Incident Restoration Time: 2026-03-06 15:07 UTC

We will continue to monitor for any further disturbances.
Mar 6, 15:38 UTC
Update - We are continuing to investigate this issue.
Mar 6, 15:11 UTC
Update - We are continuing to investigate this issue.
Mar 6, 11:10 UTC
Investigating - We are currently observing delivery issues in United States - Verizon Wireless.

Incident Start Time: 2026-03-06 04:20 UTC
Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 6, 09:49 UTC
Campaigns Application Maintenance
Completed - The scheduled maintenance has been completed.
Mar 6, 14:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 6, 13:30 UTC
Scheduled - Campaigns Application Maintenance
Mar 6, 13:20 UTC
DI SMS 365 (SMSx) | Operator Services | Potential delay in delivery of MO, MT and DR | TT#MNOC-63398
Resolved - We are pleased to inform you that the issue with the SMSX platform has been resolved.
Mar 6, 08:54 UTC
Monitoring - Please be informed that the message queues were successfully cleared at 04:07 GMT and currently we have DR queues and those are processing fine. We continue to monitor the systems closely and will share further updates as soon as more information becomes available.
Thank you for your continued patience and understanding.
Mar 6, 04:35 UTC
Update - We are continuing to investigate this issue.
Mar 6, 03:26 UTC
Update - 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.
Mar 6, 02:45 UTC
Investigating - Ticket Number :: MNOC-63398
Services:: DI MMS 365 - SMSx

Description :: Monitoring NOC is observing potential delay in delivery of messages. 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

Incident Start Date & Time (GMT) : 05th Mar 2026, 23:50 hrs

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.
Mar 6, 01:28 UTC
Delivery Issue Djibouti - Evatis
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-05 21:16 UTC
Incident End Time: 2026-03-06 03:00 UTC
Mar 6, 03:54 UTC
Update - We are continuing to investigate this issue.
Mar 6, 01:54 UTC
Investigating - We are currently observing delivery issues in Djibouti - Evatis.

Incident Start Time: 2026-03-05 21:16 UTC

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 6, 00:46 UTC
Mar 5, 2026
Network Maintenance - US5 Network Hub
Completed - The scheduled maintenance has been completed.
Mar 5, 11:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 5, 08:00 UTC
Scheduled - Dear Client,

We are reaching out to inform you that as part of our continuous efforts to improve the performance and reliability of our services, we will be performing maintenance at our US5 network hub on the schedule below.

Type: Network Maintenance

Start Time: 2026-03-05 08:00 UTC
End Time: 2026-03-05 11:00 UTC

Affected Site: US5
Impact: Clients may experience delays for MT and MO to and from the following countries for a few periods of up to 2 minutes each during the maintenance window.

Mexico
Chile
Bolivia
Paraguay
Colombia
Argentine

The same delays may be experienced towards the operator Interop in the USA.

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly.
Please contact [email protected] should you require further information or assistance.
Feb 20, 14:28 UTC
EU1 Site Degradation
Resolved - This incident has been been resolved.

Incident Start Time: 2026-03-05 01:59 UTC
Incident End Time: 2026-03-05 02:49 UTC

If you have any questions, please contact us at [email protected]
Mar 5, 03:05 UTC
Investigating - We are currently experiencing a degradation on our EU1 site.

Incident Start Time: 2026-03-05 01:59 UTC

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 5, 02:35 UTC
Mar 4, 2026
Sinch Maintenance - SSL Certificate Renewal.
Completed - The scheduled maintenance has been completed.
Mar 4, 12:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 4, 09:00 UTC
Update - Sinch will be performing a scheduled maintenance to renew our SSL certificates.

Certificates affected by this maintenance:
*.smpp.api.sinch.com
eu1.smpp.api.sinch.com

Endpoints affected by this maintenance:
eu.smpp.api.sinch.com
eu1.smpp.api.sinch.com
us.smpp.api.sinch.com
us7.smpp.api.sinch.com

As part of this update, please note that the root certificates have also changed. We recommend updating the root certificates as well to ensure continued trust and smooth operation.

Start Time: 2026-03-04 09:00 UTC
End Time: 2026-03-04 12:00 UTC

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly.

Download the certificate files for all the above mentioned certificates here:
https://clxgroup.sharepoint.com/:f:/s/CLX_Support_Anonymous_link/IgCmOnGRx3TVT6Stw0ixOsKHAfoEuGl8I54s1BCHW7ZEzFA?e=g67SGe
Feb 27, 18:07 UTC
Update - Sinch will be performing a scheduled maintenance to renew our SSL certificates.

Certificates affected by this maintenance:
*.smpp.api.sinch.com
eu1.smpp.api.sinch.com

Endpoints affected by this maintenance:
eu.smpp.api.sinch.com
eu1.smpp.api.sinch.com
us.smpp.api.sinch.com
us7.smpp.api.sinch.com

As part of this update, please note that the root certificates have also changed. We recommend updating the root certificates as well to ensure continued trust and smooth operation.

Start Time: 2026-03-02 09:00 UTC
End Time: 2026-03-02 12:00 UTC

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly.

Download the certificate files for all the above mentioned certificates here:
https://clxgroup.sharepoint.com/:f:/s/CLX_Support_Anonymous_link/IgAWvXx4dJ_oTrcHM1vo8zFCASXHd3ByVDaCaO6BvmKoy8M?e=sQhf7n
Feb 18, 14:14 UTC
Update - Sinch will be performing a scheduled maintenance to renew the SSL certificate for the below endpoints.

*.smpp.api.sinch.com
us.smpp.api.sinch.com
us7.smpp.api.sinch.com

As part of this update, please note that the root certificates have also changed. We recommend updating the root certificates as well to ensure continued trust and smooth operation.

Start Time: 2026-03-02 09:00 UTC
End Time: 2026-03-02 12:00 UTC

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly.

Download the certificate files for all the above mentioned certificates here:
https://clxgroup.sharepoint.com/:f:/s/CLX_Support_Anonymous_link/IgCmOnGRx3TVT6Stw0ixOsKHAfoEuGl8I54s1BCHW7ZEzFA?e=IlUJSs
Jan 30, 13:06 UTC
Update - Sinch will be performing a scheduled maintenance to renew the SSL certificate for the below endpoints.

*.smpp.api.sinch.com
us.smpp.api.sinch.com
us7.smpp.api.sinch.com

As part of this update, please note that the root certificates have also changed. We recommend updating the root certificates as well to ensure continued trust and smooth operation.

Start Time: 2026-03-02 09:00 UTC
End Time: 2026-03-02 12:00 UTC

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly.

Download the certificate files for all the above mentioned certificates here:
https://clxgroup.sharepoint.com/:u:/r/sites/CLX_Support_Anonymous_link/Shared%20Documents/TOR-5471/star.smpp.api.sinch.com-2027.crt?csf=1&web=1&e=wdpywE
Jan 27, 12:17 UTC
Scheduled - Sinch will be performing a scheduled maintenance to renew the SSL certificate for the below endpoints.

*.smpp.api.sinch.com
us.smpp.api.sinch.com
us7.smpp.api.sinch.com

As part of this update, please note that the root certificates have also changed. We recommend updating the root certificates as well to ensure continued trust and smooth operation.

Start Time: 2026-02-18 09:00 UTC
End Time: 2026-02-18 12:00 UTC

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly.

Download the certificate files for all the above mentioned certificates here:
https://clxgroup.sharepoint.com/:u:/r/sites/CLX_Support_Anonymous_link/Shared%20Documents/TOR-5471/star.smpp.api.sinch.com-2027.crt?csf=1&web=1&e=wdpywE
Jan 21, 14:17 UTC
Mar 3, 2026
Campaigns Application Maintenance
Completed - The scheduled maintenance has been completed.
Mar 3, 13:46 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 3, 13:00 UTC
Scheduled - Technical changes
Mar 3, 10:42 UTC
Delivery Issue Malaysia - TuneTalk
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-03 06:36 UTC
Incident End Time: 2026-03-03 11:03 UTC
Mar 3, 12:30 UTC
Update - We are continuing to investigate this issue.
Mar 3, 10:10 UTC
Investigating - We are currently observing delivery issues in Malaysia - TuneTalk.

Incident Start Time: 2026-03-03 06:36 UTC

Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 3, 08:58 UTC
DI E-Mail 365 | Operator Services | Network Maintenance | PCR Number #PCRSDI-12105
Completed - The scheduled maintenance has been completed.
Mar 3, 09:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 3, 07:00 UTC
Scheduled - Services: DI E-Mail 365
PCR Number: PCRSDI-12105

Start Date and Time (GMT): 03rd March 2026 07:00 Hrs.
End Date and Time (GMT): 03rd March 2026 09:00 Hrs.

Impact
Mobile Terminating (MT) Traffic: NO Impact.
Mobile Originated (MO) Traffic: NO Impact.
DR Notification: NO Impact.

Customers will be required to verify that their TLS connections successfully authenticate with the updated certificate.

Description:
Sinch Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal networks.

If you experience any issues during this maintenance, 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
Feb 11, 18:44 UTC
Delivery Issue Netherlands - Odido
Resolved - This incident has been resolved.

Incident Start Time: 2026-03-03 04:13 UTC
Incident End Time: 2026-03-03 04:41 UTC
Mar 3, 05:30 UTC
Investigating - We are currently observing delivery issues in Netherlands - Odido.

Incident Start Time: 2026-03-03 04:13 UTC
Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Mar 3, 04:33 UTC
Sinch Emergency Maintenance - EU4 Network Hub
Completed - Dear Client,

We are writing to inform you that the concerned maintenance activity has been cancelled.

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period.

Please contact [email protected] should you require further information or assistance.
Mar 3, 02:34 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 3, 02:00 UTC
Scheduled - Dear Client,

We are reaching out to inform you that as part of our continuous efforts to improve the performance and reliability of our services, we will be performing maintenance at our EU4 site on the schedule below.

Type: Emergency Network Maintenance

Start Time: March 3rd, 2026 02:00 UTC
End Time: March 3rd, 2026 05:00 UTC

Affected Site: EU4
Impact: Clients may experience delays for MT and MO to and from the following operators for up to 15 minutes during the maintenance window.

Orange France
Eir Ireland

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly. Please contact [email protected] should you require further information or assistance.
Feb 20, 10:09 UTC
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