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Degraded Performance
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Maintenance
Scheduled Maintenance
DI SMS 365 (SMSX) | Operator Services | Application and Database Maintenance || PCR Number # PCRSDI-12320 Aug 11, 2026 05:00-10:00 UTC
Services :: DI SMS 365 (SMSX)
PCR Number :: PCRSDI-12320
Start Date and Time (GMT):: 11th August 2026 05:00 Hrs.
End Date and Time (GMT):: 11th August 2026 10:00 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 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.
This scheduled maintenance affected: Sinch DI Services (SMS 365 Operator RoW, SMS 365 Operator US).
Posted on Aug 07, 2026 - 16:16 UTC
PCR Number :: PCRSDI-12320
Start Date and Time (GMT):: 11th August 2026 05:00 Hrs.
End Date and Time (GMT):: 11th August 2026 10:00 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 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.
This scheduled maintenance affected: Sinch DI Services (SMS 365 Operator RoW, SMS 365 Operator US).
Posted on Aug 07, 2026 - 16:16 UTC
DI SMS 365 (iSMS) | Operator Services | Application Maintenance | PCR Number # PCRSDI-12333 Aug 11, 2026 05:30-10:30 UTC
Services: DI SMS 365 (iSMS)
PCR Number: PCRSDI-12333
Start Date and Time (GMT) :: 11th August 2026 5:30:00 Hrs.
End Date and Time (GMT) :: 11th August 2026 10:30 Hrs.
Impact
Mobile Terminating (MT) Traffic: No impact expected.
Mobile Originated (MO) Traffic: No impact expected.
DR Notification: No impact expected.
Report Manager Access: Not impacted
Report Manager Statistics: Not impacted
Description:
Sinch Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal applications; no impact is expected during this activity.
If you experience any issues during this maintenance, 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.
This scheduled maintenance affected: Sinch DI Services (International SMS 365).
Posted on Aug 07, 2026 - 16:14 UTC
PCR Number: PCRSDI-12333
Start Date and Time (GMT) :: 11th August 2026 5:30:00 Hrs.
End Date and Time (GMT) :: 11th August 2026 10:30 Hrs.
Impact
Mobile Terminating (MT) Traffic: No impact expected.
Mobile Originated (MO) Traffic: No impact expected.
DR Notification: No impact expected.
Report Manager Access: Not impacted
Report Manager Statistics: Not impacted
Description:
Sinch Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal applications; no impact is expected during this activity.
If you experience any issues during this maintenance, 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.
This scheduled maintenance affected: Sinch DI Services (International SMS 365).
Posted on Aug 07, 2026 - 16:14 UTC
Sinch Scheduled Maintenance - Elastic SIP Trunking - Voice Routing Engine Aug 12, 2026 03:00-04:00 UTC
Update -
We will be undergoing scheduled maintenance during this time.
Aug 07, 2026 - 00:49 UTC
Aug 07, 2026 - 00:49 UTC
Scheduled -
The scheduled maintenance has a new start time - the work will start at 3:00 UTC (11 PM EDT on August 11, 2026)
------
Sinch Elastic SIP Trunking will be undergoing maintenance on the voice routing engine - the scheduled work is not expected to impact services. This is being sent as a courtesy notice in the event that you experience issues with your service 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 support@sinch.com for further information.
Jul 31, 2026 - 02:39 UTC
------
Sinch Elastic SIP Trunking will be undergoing maintenance on the voice routing engine - the scheduled work is not expected to impact services. This is being sent as a courtesy notice in the event that you experience issues with your service 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 support@sinch.com for further information.
Jul 31, 2026 - 02:39 UTC
DI SMS 365 (SMSX) | Operator Services | Application and Database Maintenance || PCR Number # PCRSDI-12321 Aug 12, 2026 05:00-10:00 UTC
Update -
We will be undergoing scheduled maintenance during this time.
Aug 07, 2026 - 17:20 UTC
Aug 07, 2026 - 17:20 UTC
Scheduled -
Services :: DI SMS 365 (SMSX)
PCR Number :: PCRSDI-12321
Start Date and Time (GMT):: 12th August 2026 05:00 Hrs.
End Date and Time (GMT):: 12th August 2026 10:00 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 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.
Aug 07, 2026 - 16:21 UTC
PCR Number :: PCRSDI-12321
Start Date and Time (GMT):: 12th August 2026 05:00 Hrs.
End Date and Time (GMT):: 12th August 2026 10:00 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 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.
Aug 07, 2026 - 16:21 UTC
Planned Maintenance – EU3 Network Hub Aug 13, 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 EU3 network hub on the scheduled time window below.
Type: Network Maintenance
Affected Site: EU3 Network Hub
Maintenance start time: 2026-08-13 02:00 UTC
Maintenance end time: 2026-08-13 05:00 UTC
Impact: Customers may experience multiple brief connectivity issues during the duration of this maintenance 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
If for any reason the maintenance is extended or cancelled we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Jul 24, 2026 - 15:19 UTC
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 EU3 network hub on the scheduled time window below.
Type: Network Maintenance
Affected Site: EU3 Network Hub
Maintenance start time: 2026-08-13 02:00 UTC
Maintenance end time: 2026-08-13 05:00 UTC
Impact: Customers may experience multiple brief connectivity issues during the duration of this maintenance 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
If for any reason the maintenance is extended or cancelled we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Jul 24, 2026 - 15:19 UTC
Sinch Scheduled Maintenance - Elastic SIP Trunking - Emergency calling / Media Servers Aug 13, 2026 03:00-05:00 UTC
Update -
We will be undergoing scheduled maintenance during this time.
Aug 07, 2026 - 00:51 UTC
Aug 07, 2026 - 00:51 UTC
Update -
We will be undergoing scheduled maintenance during this time.
Aug 05, 2026 - 04:59 UTC
Aug 05, 2026 - 04:59 UTC
Scheduled -
The scheduled maintenance has a new start time - the work will start at 3:00 UTC (11 PM EDT on August 12, 2026)
--------
Please note that we are extending this maintenance window to resolve a memory issue on our media servers.
-----
Sinch Elastic SIP Trunking will be undergoing maintenance to resolve an issue with emergency calls presented with an RPID. This update is not expected to impact your services. This is being sent as a courtesy notice in the event that you experience issues that extend beyond 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 support@sinch.com for further information.
Jul 31, 2026 - 02:49 UTC
--------
Please note that we are extending this maintenance window to resolve a memory issue on our media servers.
-----
Sinch Elastic SIP Trunking will be undergoing maintenance to resolve an issue with emergency calls presented with an RPID. This update is not expected to impact your services. This is being sent as a courtesy notice in the event that you experience issues that extend beyond 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 support@sinch.com for further information.
Jul 31, 2026 - 02:49 UTC
DI SMS 365 (SMSX) | Operator Services | Application and Database Maintenance || PCR Number # PCRSDI-12322 Aug 13, 2026 05:00-10:00 UTC
Update -
We will be undergoing scheduled maintenance during this time.
Aug 07, 2026 - 16:32 UTC
Aug 07, 2026 - 16:32 UTC
Scheduled -
Services :: DI SMS 365 (SMSX)
PCR Number :: PCRSDI-12322
Start Date and Time (GMT):: 13th August 2026 05:00 Hrs.
End Date and Time (GMT):: 13th August 2026 10:00 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 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.
Aug 07, 2026 - 16:23 UTC
PCR Number :: PCRSDI-12322
Start Date and Time (GMT):: 13th August 2026 05:00 Hrs.
End Date and Time (GMT):: 13th August 2026 10:00 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 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.
Aug 07, 2026 - 16:23 UTC
Sinch Internal Maintenance - MMS Aug 13, 2026 08:00-10:30 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 MMS platform at the times specified below.
Type: Maintenance - MMS
Start Time: 2026-08-13 08:00 UTC
End Time: 2026-08-13 10:30 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 support@sinch.com should you require further information or assistance.
Posted on Jul 30, 2026 - 16:32 UTC
Type: Maintenance - MMS
Start Time: 2026-08-13 08:00 UTC
End Time: 2026-08-13 10:30 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 support@sinch.com should you require further information or assistance.
Posted on Jul 30, 2026 - 16:32 UTC
Sinch Scheduled Maintenance - Elastic SIP Trunking - Policy Engine Aug 14, 2026 03:00-03:30 UTC
Update -
We will be undergoing scheduled maintenance during this time.
Aug 07, 2026 - 00:55 UTC
Aug 07, 2026 - 00:55 UTC
Scheduled -
The scheduled maintenance has a new start time - the work will start at 3:00 UTC (11 PM EDT on August 13, 2026)
---------
Sinch Elastic SIP Trunking will be undergoing maintenance on the policy engine to optimize and improve consumption of the CPU. The scheduled work is not expected to impact services. This is being sent as a courtesy notice in the event that you experience issues with your service 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 support@sinch.com for further information.
Jul 31, 2026 - 03:00 UTC
---------
Sinch Elastic SIP Trunking will be undergoing maintenance on the policy engine to optimize and improve consumption of the CPU. The scheduled work is not expected to impact services. This is being sent as a courtesy notice in the event that you experience issues with your service 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 support@sinch.com for further information.
Jul 31, 2026 - 03:00 UTC
Sinch Contact Pro Quarterly Maintenance - AU Aug 15, 2026 10:00 - Aug 16, 2026 16:00 UTC
Dear Customer,
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-8-15 (Saturday) 10 AM UTC
End time: 2026-8-16 (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 maintenace window.
What´s new documentation regarding the upcoming 26Q3 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 Aug 04, 2026 - 08:38 UTC
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-8-15 (Saturday) 10 AM UTC
End time: 2026-8-16 (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 maintenace window.
What´s new documentation regarding the upcoming 26Q3 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 Aug 04, 2026 - 08:38 UTC
Sinch Contact Pro Quarterly Maintenance - AF Aug 15, 2026 16:00 - Aug 16, 2026 22:00 UTC
Dear Customer,
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-8-15 (Saturday) 4 PM UTC
End time: 2026-8-16 (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 maintenace window.
What´s new documentation regarding the upcoming 26Q3 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 Aug 04, 2026 - 08:37 UTC
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-8-15 (Saturday) 4 PM UTC
End time: 2026-8-16 (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 maintenace window.
What´s new documentation regarding the upcoming 26Q3 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 Aug 04, 2026 - 08:37 UTC
Sinch Contact Pro Quarterly Maintenance - EU Aug 15, 2026 16:00 - Aug 16, 2026 22:00 UTC
Dear Customer,
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-8-15 (Saturday) 4 PM UTC
End time: 2026-8-16 (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 maintenace window.
What´s new documentation regarding the upcoming 26Q3 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 Aug 04, 2026 - 08:38 UTC
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-8-15 (Saturday) 4 PM UTC
End time: 2026-8-16 (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 maintenace window.
What´s new documentation regarding the upcoming 26Q3 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 Aug 04, 2026 - 08:38 UTC
Scheduled Maintenance - Message Manager Aug 15, 2026 18:00-22:00 UTC
We are reaching out to inform you that Sinch has a scheduled maintenance on Message Manager.
Customers are advised not to schedule any campaigns during this maintenance window.
Maintenance Start Time: 2026-08-15 18:00 UTC
Maintenance End Time: 2026-08-15 22:00 UTC
Impact: The Message Manager UI will be unavailable during the application upgrade.
If you experience any issues during this maintenance window, 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, then option 1).
Please reference this maintenance notification when contacting support.
Posted on Jul 30, 2026 - 20:47 UTC
Customers are advised not to schedule any campaigns during this maintenance window.
Maintenance Start Time: 2026-08-15 18:00 UTC
Maintenance End Time: 2026-08-15 22:00 UTC
Impact: The Message Manager UI will be unavailable during the application upgrade.
If you experience any issues during this maintenance window, 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, then option 1).
Please reference this maintenance notification when contacting support.
Posted on Jul 30, 2026 - 20:47 UTC
Sinch Contact Pro Quarterly Maintenance - Americas Aug 16, 2026 01:00 - Aug 17, 2026 07:00 UTC
Dear Customer,
We will be performing Contact Pro maintenance and version upgrade as follows.
Start time: 2026-8-16 (Sunday) 1 AM UTC
End time: 2026-8-17 (Monday) 7 AM UTC
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 26Q3 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 Aug 04, 2026 - 08:39 UTC
We will be performing Contact Pro maintenance and version upgrade as follows.
Start time: 2026-8-16 (Sunday) 1 AM UTC
End time: 2026-8-17 (Monday) 7 AM UTC
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 26Q3 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 Aug 04, 2026 - 08:39 UTC
DI SMS 365 (SMSX) | Operator Services | Application || PCR Number # PCRSDI-12329 Aug 18, 2026 06:00-10:00 UTC
Services :: DI SMS 365 (SMSX)
PCR Number :: PCRSDI-12329
Start Date and Time (GMT):: 18th August 2026 06:00 Hrs.
End Date and Time (GMT):: 18th August 2026 10:00 Hrs.
Impact
Mobile Terminating (MT) Traffic : Potential latency
Mobile Originated (MO) Traffic : Potential latency
DR Notification: Potential latency
Description:
Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal application and systems.
Potential latency may occur in the delivery of messages.
If you experience any issues during this maintenance , 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
Posted on Aug 07, 2026 - 16:26 UTC
PCR Number :: PCRSDI-12329
Start Date and Time (GMT):: 18th August 2026 06:00 Hrs.
End Date and Time (GMT):: 18th August 2026 10:00 Hrs.
Impact
Mobile Terminating (MT) Traffic : Potential latency
Mobile Originated (MO) Traffic : Potential latency
DR Notification: Potential latency
Description:
Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal application and systems.
Potential latency may occur in the delivery of messages.
If you experience any issues during this maintenance , 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
Posted on Aug 07, 2026 - 16:26 UTC
Sinch Internal Maintenance - MMS Aug 20, 2026 08:00-10:30 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 MMS platform at the times specified below.
Type: Maintenance - MMS
Start Time: 2026-08-20 08:00 UTC
End Time: 2026-08-20 10:30 UTC
Impact MMS: MMS US, MMS AU, MMS CA. Customers may experience intermittent delays during the maintenance window due to queued messages. All queued messages will be processed after the upgrade.
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 support@sinch.com should you require further information or assistance.
Posted on Jul 30, 2026 - 16:32 UTC
Type: Maintenance - MMS
Start Time: 2026-08-20 08:00 UTC
End Time: 2026-08-20 10:30 UTC
Impact MMS: MMS US, MMS AU, MMS CA. Customers may experience intermittent delays during the maintenance window due to queued messages. All queued messages will be processed after the upgrade.
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 support@sinch.com should you require further information or assistance.
Posted on Jul 30, 2026 - 16:32 UTC
Sinch Internal Maintenance - MMS Aug 27, 2026 08:00-10:30 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 MMS platform at the times specified below.
Type: Maintenance - MMS
Start Time: 2026-08-27 08:00 UTC
End Time: 2026-08-27 10:30 UTC
Impact MMS: MMS US, MMS AU, MMS CA. Customers may experience intermittent delays during the maintenance window due to queued messages. All queued messages will be processed after the upgrade.
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 support@sinch.com should you require further information or assistance.
Posted on Jul 30, 2026 - 16:32 UTC
Type: Maintenance - MMS
Start Time: 2026-08-27 08:00 UTC
End Time: 2026-08-27 10:30 UTC
Impact MMS: MMS US, MMS AU, MMS CA. Customers may experience intermittent delays during the maintenance window due to queued messages. All queued messages will be processed after the upgrade.
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 support@sinch.com should you require further information or assistance.
Posted on Jul 30, 2026 - 16:32 UTC
Service Announcement & Maintenance: New SMSC Site & Whitelisting Requirements - US Region Oct 1, 2026 07:00-08:00 UTC
As part of our commitment to platform reliability, security, and scalability, Sinch is adding a brand-new, high-efficiency site to our core SMSC billing and messaging routing engine product. This site expansion introduces a next-generation, high-performance architecture to significantly increase our regional capacity, improve overall platform stability, and ensure robust message processing.
New Regional Connection Endpoints that are planned to go live 2026-10-01 during the target window:
US SMPP: us6.smpp.api.sinch.com:
US HTTP SMS: us6.httpsms.api.sinch.com
US Lookup API: us6.httplookup.api.sinch.com
Type: Service Announcement & Maintenance
Maintenance start time: 2026-10-01 07:00 UTC
Maintenance end time: 2026-10-01 08:00 UTC
Action Required: Firewall Whitelisting
To ensure uninterrupted message delivery as we scale our traffic to include this new site we request that you update your firewall settings.
Affected API Endpoint:
(This change only affects customers connecting to either of the following US endpoints)
US SMPP: us1.smpp.api.sinch.com and/or us7.smpp.api.sinch.com
US HTTP SMS: us1.httpsms.api.sinch.com and/or us7.httpsms.api.sinch.com
US Lookup API: us1.httplookup.api.sinch.com and/or us7.httplookup.api.sinch.com
IP Addresses to Whitelist
Please coordinate with your network security team to whitelist these target IP addresses:
35.95.194.74
44.239.11.143
52.32.122.205
If for any reason the maintenance is extended, cancelled, or postponed, we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Jul 10, 2026 - 08:37 UTC
New Regional Connection Endpoints that are planned to go live 2026-10-01 during the target window:
US SMPP: us6.smpp.api.sinch.com:
US HTTP SMS: us6.httpsms.api.sinch.com
US Lookup API: us6.httplookup.api.sinch.com
Type: Service Announcement & Maintenance
Maintenance start time: 2026-10-01 07:00 UTC
Maintenance end time: 2026-10-01 08:00 UTC
Action Required: Firewall Whitelisting
To ensure uninterrupted message delivery as we scale our traffic to include this new site we request that you update your firewall settings.
Affected API Endpoint:
(This change only affects customers connecting to either of the following US endpoints)
US SMPP: us1.smpp.api.sinch.com and/or us7.smpp.api.sinch.com
US HTTP SMS: us1.httpsms.api.sinch.com and/or us7.httpsms.api.sinch.com
US Lookup API: us1.httplookup.api.sinch.com and/or us7.httplookup.api.sinch.com
IP Addresses to Whitelist
Please coordinate with your network security team to whitelist these target IP addresses:
35.95.194.74
44.239.11.143
52.32.122.205
If for any reason the maintenance is extended, cancelled, or postponed, we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Jul 10, 2026 - 08:37 UTC