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Degraded Performance
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Major Outage
Maintenance
Scheduled Maintenance
External Maintenance - SMS & MMS Jan 14, 2026 04:00-11:00 UTC
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: 2026-01-14 04:00 UTC
Maintenance End Time: 2026-01-14 11:00 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.
Posted on Jan 07, 2026 - 10:56 UTC
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: 2026-01-14 04:00 UTC
Maintenance End Time: 2026-01-14 11:00 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.
Posted on Jan 07, 2026 - 10:56 UTC
DI SMS 365 (SMSX) | Operator Services | Application, Database and System Maintenance || PCR Number #PCRSDI-12056 Jan 14, 2026 10:00-13:00 UTC
Services :: DI SMS 365 (SMSX)
PCR Number :: PCRSDI-12056
Start Date and Time (GMT):: 14 January 2026 10:00 Hrs.
End Date and Time (GMT):: 14 January 2026 13:00 Hrs.
Impact
Mobile Terminating (MT) Traffic : No Impact
Mobile Originated (MO) Traffic : No Impact
DR Notification : No Impact
Report Manager Access : Impacted.
Report Manager Statistics : Impacted.
Description:
Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal application and systems.
Report Manager may experience several slowdowns up to 1 minute and delayed up to 1 minute data in reports.
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.
Posted on Jan 12, 2026 - 23:22 UTC
PCR Number :: PCRSDI-12056
Start Date and Time (GMT):: 14 January 2026 10:00 Hrs.
End Date and Time (GMT):: 14 January 2026 13:00 Hrs.
Impact
Mobile Terminating (MT) Traffic : No Impact
Mobile Originated (MO) Traffic : No Impact
DR Notification : No Impact
Report Manager Access : Impacted.
Report Manager Statistics : Impacted.
Description:
Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal application and systems.
Report Manager may experience several slowdowns up to 1 minute and delayed up to 1 minute data in reports.
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.
Posted on Jan 12, 2026 - 23:22 UTC
DI SMS 365 (iSMS) | Operator Services | Application Maintenance | PCR Number #PCRSDI-12012 Jan 14, 2026 12:00-16:00 UTC
Services: DI SMS 365 (iSMS)
PCR Number: PCRSDI-12012
Start Date and Time (GMT) :: 14 Jan 2026 12:00 Hrs.
End Date and Time (GMT) :: 14 Jan 2026 04:00 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.
Posted on Jan 13, 2026 - 18:20 UTC
PCR Number: PCRSDI-12012
Start Date and Time (GMT) :: 14 Jan 2026 12:00 Hrs.
End Date and Time (GMT) :: 14 Jan 2026 04:00 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.
Posted on Jan 13, 2026 - 18:20 UTC
External Maintenance - Toll-Free Number Provider Jan 15, 2026 04:00-08:00 UTC
Our Toll-Free number provider has scheduled a maintenance.
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-01-15 04:00 UTC
Maintenance end time: 2026-01-15 08:00 UTC
Posted on Dec 17, 2025 - 09:13 UTC
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-01-15 04:00 UTC
Maintenance end time: 2026-01-15 08:00 UTC
Posted on Dec 17, 2025 - 09:13 UTC
DI MMS 365 DI SMS 365 | Operator Services | Network Maintenance | PCR Number #PCRSDI-12062 Jan 20, 2026 07:00-10:00 UTC
Services :: DI MMS 365 DI SMS 365
PCR Number:: PCRSDI-12062
Start Date and Time (GMT) :: 20th Jan 2026 07:00 Hrs.
End Date and Time (GMT) :: 20th Jan 2026 10:00 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.
Posted on Jan 09, 2026 - 15:20 UTC
PCR Number:: PCRSDI-12062
Start Date and Time (GMT) :: 20th Jan 2026 07:00 Hrs.
End Date and Time (GMT) :: 20th Jan 2026 10:00 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.
Posted on Jan 09, 2026 - 15:20 UTC
External Maintenance - Singapore - Starhub Mobile Jan 21, 2026 15:30-22:00 UTC
Starhub Mobile Singapore has scheduled a maintenance.
Impact: Clients may potentially experience MT, DLR and MO delays for Short Code, Numeric and Alpha on Starhub Mobile SG.
Maintenance start time: 2026-01-21 15:30 UTC
Maintenance end time: 2026-01-21 22:00 UTC
Posted on Jan 13, 2026 - 03:15 UTC
Impact: Clients may potentially experience MT, DLR and MO delays for Short Code, Numeric and Alpha on Starhub Mobile SG.
Maintenance start time: 2026-01-21 15:30 UTC
Maintenance end time: 2026-01-21 22:00 UTC
Posted on Jan 13, 2026 - 03:15 UTC
External Maintenance - Toll-Free Number Provider Jan 22, 2026 04:00-08:00 UTC
Our Toll-Free number provider has scheduled a maintenance.
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-01-22 04:00 UTC
Maintenance end time: 2026-01-22 08:00 UTC
Posted on Dec 17, 2025 - 09:13 UTC
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-01-22 04:00 UTC
Maintenance end time: 2026-01-22 08:00 UTC
Posted on Dec 17, 2025 - 09:13 UTC
DI SMS 365 (SMSx) | Operator Services | Application Maintenance | PCR Number #PCRSDI-12068 Jan 22, 2026 07:00-11:00 UTC
Services: DI SMS 365 (SMSx)
PCR Number: PCRSDI-12068
Start Date and Time (GMT) :: 22 Jan 2026 07:00 Hrs.
End Date and Time (GMT) :: 22 Jan 2026 11:00 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.
Posted on Jan 09, 2026 - 15:28 UTC
PCR Number: PCRSDI-12068
Start Date and Time (GMT) :: 22 Jan 2026 07:00 Hrs.
End Date and Time (GMT) :: 22 Jan 2026 11:00 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.
Posted on Jan 09, 2026 - 15:28 UTC
External Maintenance - SMS & MMS Jan 23, 2026 05:00-11:00 UTC
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: 2026-01-23 05:00 UTC
Maintenance End Time: 2026-01-23 11:00 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.
Posted on Jan 13, 2026 - 11:08 UTC
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: 2026-01-23 05:00 UTC
Maintenance End Time: 2026-01-23 11:00 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.
Posted on Jan 13, 2026 - 11:08 UTC
Sinch Contact Pro Quarterly Maintenance - AU Jan 24, 2026 10:00 - Jan 25, 2026 16:00 UTC
Dear Customer,
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-1-24 (Saturday) 10 AM UTC
End time: 2026-1-25 (Sunday) 4 PM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenance window.
What´s new documentation regarding the upcoming 26Q1 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Jan 13, 2026 - 13:31 UTC
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-1-24 (Saturday) 10 AM UTC
End time: 2026-1-25 (Sunday) 4 PM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenance window.
What´s new documentation regarding the upcoming 26Q1 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Jan 13, 2026 - 13:31 UTC
Sinch Contact Pro Quarterly Maintenance - EU Jan 24, 2026 16:00 - Jan 25, 2026 22:00 UTC
Dear Customer,
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-1-24 (Saturday) 4 PM UTC
End time: 2026-1-25 (Sunday) 10 PM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenance window.
What´s new documentation regarding the upcoming 26Q1 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Jan 13, 2026 - 13:32 UTC
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-1-24 (Saturday) 4 PM UTC
End time: 2026-1-25 (Sunday) 10 PM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenance window.
What´s new documentation regarding the upcoming 26Q1 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Jan 13, 2026 - 13:32 UTC
Sinch Contact Pro Quarterly Maintenance - AF Jan 24, 2026 16:00 - Jan 25, 2026 22:00 UTC
Dear Customer,
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-1-24 (Saturday) 4 PM UTC
End time: 2026-1-25 (Sunday) 10 PM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenance window.
What´s new documentation regarding the upcoming 26Q1 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Jan 13, 2026 - 13:30 UTC
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-1-24 (Saturday) 4 PM UTC
End time: 2026-1-25 (Sunday) 10 PM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenance window.
What´s new documentation regarding the upcoming 26Q1 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Jan 13, 2026 - 13:30 UTC
Sinch Contact Pro Quarterly Maintenance - Americas Jan 25, 2026 01:00 - Jan 26, 2026 07:00 UTC
Dear Customer,
We will be performing Contact Pro maintenance and version upgrade as follows.
Start time: 2026-1-25 (Sunday) 1 AM UTC
End time: 2026-1-26 (Monday) 7 AM UTC
Maintenance requires an additional separate service break on Sunday morning at 4 AM UTC due to upgrade of Nginx components. Service break will cause 5-10 minutes downtime to all channels.
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenace window.
What´s new documentation regarding the upcoming 26Q1 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Jan 13, 2026 - 13:33 UTC
We will be performing Contact Pro maintenance and version upgrade as follows.
Start time: 2026-1-25 (Sunday) 1 AM UTC
End time: 2026-1-26 (Monday) 7 AM UTC
Maintenance requires an additional separate service break on Sunday morning at 4 AM UTC due to upgrade of Nginx components. Service break will cause 5-10 minutes downtime to all channels.
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenace window.
What´s new documentation regarding the upcoming 26Q1 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Jan 13, 2026 - 13:33 UTC
External Maintenance - SMS & MMS Jan 27, 2026 05:00-11:00 UTC
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: 2026-01-27 05:00 UTC
Maintenance End Time: 2026-01-27 11:00 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.
Posted on Jan 13, 2026 - 11:47 UTC
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: 2026-01-27 05:00 UTC
Maintenance End Time: 2026-01-27 11:00 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.
Posted on Jan 13, 2026 - 11:47 UTC
External Maintenance - Toll-Free Number Provider Jan 29, 2026 04:00-08:00 UTC
Our Toll-Free number provider has scheduled a maintenance.
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-01-29 04:00 UTC
Maintenance end time: 2026-01-29 08:00 UTC
Posted on Dec 17, 2025 - 09:14 UTC
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-01-29 04:00 UTC
Maintenance end time: 2026-01-29 08:00 UTC
Posted on Dec 17, 2025 - 09:14 UTC
External Maintenance - Toll-Free Number Provider Feb 5, 2026 04:00-08:00 UTC
Our Toll-Free number provider has scheduled a maintenance.
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-02-05 04:00 UTC
Maintenance end time: 2026-02-05 08:00 UTC
Posted on Jan 09, 2026 - 21:31 UTC
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-02-05 04:00 UTC
Maintenance end time: 2026-02-05 08:00 UTC
Posted on Jan 09, 2026 - 21:31 UTC
External Maintenance - Toll-Free Number Provider Feb 12, 2026 04:00-08:00 UTC
Our Toll-Free number provider has scheduled a maintenance.
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-02-12 04:00 UTC
Maintenance end time: 2026-02-12 08:00 UTC
Posted on Jan 09, 2026 - 20:22 UTC
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-02-12 04:00 UTC
Maintenance end time: 2026-02-12 08:00 UTC
Posted on Jan 09, 2026 - 20:22 UTC
External Maintenance - Toll-Free Number Provider Feb 19, 2026 04:00-08:00 UTC
Our Toll-Free number provider has scheduled a maintenance.
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-02-19 04:00 UTC
Maintenance end time: 2026-02-19 08:00 UTC
Posted on Jan 09, 2026 - 20:30 UTC
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-02-19 04:00 UTC
Maintenance end time: 2026-02-19 08:00 UTC
Posted on Jan 09, 2026 - 20:30 UTC
External Maintenance - Toll-Free Number Provider Feb 26, 2026 04:00-08:00 UTC
Our Toll-Free number provider has scheduled a maintenance.
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-02-26 04:00 UTC
Maintenance end time: 2026-02-26 08:00 UTC
Posted on Jan 09, 2026 - 20:41 UTC
Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Maintenance start time: 2026-02-26 04:00 UTC
Maintenance end time: 2026-02-26 08:00 UTC
Posted on Jan 09, 2026 - 20:41 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
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