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DI SMS 365 (SMSX) | Operator Services | Application, Database and System Maintenance || PCR Number #PCRSDI-12384 Oct 29, 2026 05:00-10:00 UTC This maintenance is canceled for 10/29/26 05:00 Hrs (GMT) Services :: DI SMS 365 (SMSX) PCR Number :: PCRSDI-12384 Start Date and Time (GMT):: 29th October 2026 05:00 Hrs. End Date and Time (GMT):: 29th October 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. Posted on Oct 21, 2026 - 15:17 UTC External Maintenance - US and Canada Nov 12, 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: 2026-11-12 04:00 UTC Maintenance end time: 2026-11-12 11:00 UTC Posted on Nov 06, 2026 - 13:18 UTC External Maintenance - Toll-Free Number Provider Nov 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: 2026-11-12 04:00 UTC Maintenance end time: 2026-11-12 08:00 UTC Posted on Oct 21, 2026 - 04:08 UTC External Maintenance - United States - Verizon Nov 12, 2026 05:00-10:00 UTC Verizon USA has scheduled a maintenance. Impact SMS: Clients may experience delayed or failed Short Code and 10DLC MT/MO traffic towards Verizon-US Impact MMS: Clients may experience delayed or failed Short Code MT/MO traffic towards Verizon-US Maintenance start time: 2026-11-12 05:00 UTC Maintenance end time: 2026-11-12 10:00 UTC Posted on Nov 03, 2026 - 16:02 UTC External Maintenance - Toll-Free Number Provider Nov 12, 2026 05:00-10:00 UTC Our Toll-Free Number Provider has scheduled a maintenance. Impact SMS: Clients may experience delayed or failed MT/MO traffic towards the United States and Canada. Impact MMS: Clients may experience delayed or failed MT/MO traffic towards the United States. Maintenance start time: 2026-11-12 05:00 UTC Maintenance end time: 2026-11-12 10:00 UTC Posted on Nov 04, 2026 - 07:36 UTC Planned Maintenance Notification – Sinch EU Central RTCx Network Infrastructure Nov 12, 2026 06:00-08:00 UTC We are reaching out to inform you that a maintenance will be performed on our EU Central RTCx network and security infrastructure during the scheduled time window below. Type: Network Maintenance Affected Site: EU Maintenance Start Time: 2026-11-12 06:00 UTC Maintenance End Time: 2026-11-12 08:00 UTC Impact: Approximately 5-10 minutes of service-impact on the specified components. 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 Oct 29, 2026 - 18:22 UTC DI SMS 365 (SMSx) | Operator Services | Network Maintenance | PCR Number #PCRSDI-12434 Nov 12, 2026 07:00-11:00 UTC Services :: DI SMS 365 PCR Number :: PCRSDI-12434 Start Date and Time (GMT):: 12th November 2026 07:00 Hrs. End Date and Time (GMT):: 12th November 2026 11:00 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 applications. 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 Nov 06, 2026 - 19:51 UTC DI SMS 365 (SMSx) | Operator Services | Network Maintenance | PCR Number #PCRSDI-12433 Nov 12, 2026 07:00-11:00 UTC Services :: DI SMS 365 (SMSx) PCR Number :: PCRSDI-12433 Start Date and Time (GMT):: 12th November 2026 07:00 Hrs. End Date and Time (GMT):: 12th November 2026 11:00 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 applications. 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 Nov 06, 2026 - 19:52 UTC DI SMS 365 (SMSx) | Operator Services | Application, System Maintenance | PCR Number #PCRSDI-12448 Nov 12, 2026 07:00-11:00 UTC Services :: DI SMS 365 (SMSx) PCR Number :: PCRSDI-12448 Start Date and Time (GMT):: 12th November 2026 07:00 Hrs. End Date and Time (GMT):: 12th November 2026 11:00 Hrs. Impact: Mobile Terminating (MT) Traffic: Potential Latency Mobile Originated (MO) Traffic: Potential Latency DR Notification: Potential Latency Report Manager Access : Impacted. Report Manager Statistics : Impacted Description: 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 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 Nov 06, 2026 - 19:56 UTC DI SMS 365 (SMSx) | Operator Services | Application Maintenance | PCR Number #PCRSDI-12408 Nov 12, 2026 07:00-11:00 UTC Services :: DI SMS 365 (SMSx) PCR Number :: PCRSDI-12408 Start Date and Time (GMT):: 12th November 2026 07:00 Hrs. End Date and Time (GMT):: 12th November 2026 11:00 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 applications. 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 Nov 06, 2026 - 19:58 UTC Planned Maintenance Notification – Sinch CA1 Network Infrastructure Nov 12, 2026 07:00-08:00 UTC We are reaching out to inform you that a maintenance will be performed on our CA1 network and security infrastructure during the scheduled time window below. Type: Network Maintenance Affected Site: CA1 Maintenance Start Time: 2026-11-12 07:00 UTC Maintenance End Time: 2026-11-12 08:00 UTC Impact: Approximately 5-10 minutes of service-impact on the specified components. 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 Oct 29, 2026 - 18:53 UTC Planned Maintenance - Conversation API Nov 12, 2026 08:00-10:00 UTC Dear Client, 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 Maintenance of the Conversation API at the time specified below. Type: Maintenance - Conversation API Start Time: 2026-11-12 08:00 UTC End Time: 2026-11-12 10:00 UTC Impact: Clients may experience delayed delivery and receipt of messages routed via the conversation API 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. Sincerely, Sinch Posted on Oct 29, 2026 - 16:50 UTC External Maintenance - US and Canada Nov 13, 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: 2026-11-13 04:00 UTC Maintenance end time: 2026-11-13 11:00 UTC Posted on Nov 06, 2026 - 14:20 UTC Sinch Scheduled Maintenance - Elastic SIP Trunking - Voice Application Servers Nov 13, 2026 04:00-05:00 UTC Update - We will be undergoing scheduled maintenance during this time. Nov 06, 2026 - 01:37 UTC Update - We will be undergoing scheduled maintenance during this time. Oct 27, 2026 - 16:52 UTC Scheduled - The scheduled maintenance has been moved to Friday, November 13 (4:00 UTC). -------------------------------------- Sinch Elastic SIP Trunking will be undergoing maintenance on the voice application servers to enable AMR-WB audio on eligible calls as part of a future release. The scheduled work is not expected to impact your service. 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. Oct 21, 2026 - 03:31 UTC Planned Maintenance - Message manager 6.2.1B release, OS patches/updates Nov 14, 2026 18:00-22:00 UTC Dear Client, A planned maintenance activity is scheduled for Message Manager. Customers are advised not to schedule any campaigns during this maintenance window. Maintenance Start Time: 2026-11-14 18:00 UTC Maintenance End Time: 2026-11-14 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. If you have any questions or concerns, please contact your Account Manager. Posted on Oct 29, 2026 - 17:38 UTC DI SMS 365 (iSMS) | Operator Services | Application, Database and System Maintenance || PCR Number #PCRSDI-12379 Nov 17, 2026 05:00-13:00 UTC Update - We will be undergoing scheduled maintenance during this time. Oct 21, 2026 - 15:40 UTC Scheduled - Services :: DI SMS 365 (iSMS) PCR Number :: PCRSDI-12379 Start Date and Time (GMT):: 17th November 2026 05:00 Hrs. End Date and Time (GMT):: 17th November 2026 13:00 Hrs. Impact Mobile Terminating (MT) Traffic : Potential latency Mobile Originated (MO) Traffic : Potential latency DR Notification : No Impact Report Manager Access : No Impact Report Manager Statistics : No Impact 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. Oct 09, 2026 - 18:54 UTC Sinch Maintenance - SSL Certificate Renewal Nov 17, 2026 08:00-11:00 UTC Sinch will be performing a scheduled maintenance to renew the SSL certificate's. Type: Scheduled Maintenance Maintenance: SSL Certificate Updates Start Time: 2026-11-17 08:00 UTC End Time: 2026-11-17 11:00 UTC Certificates affected by this maintenance: *.sinch.com *.httpgw.api.sinch.com *.mad.api.sinch.com 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/IgBHPI0ITMohSZ-RZi_avnfgAYszcmL0lkcFEM4KhYTrips Posted on Oct 28, 2026 - 17:25 UTC DI SMS 365 (iSMS) | Operator Services | Application, Database and System Maintenance || PCR Number # PCRSDI-12380 Nov 18, 2026 05:00-13:00 UTC Update - We will be undergoing scheduled maintenance during this time. Oct 21, 2026 - 15:40 UTC Scheduled - Services :: DI SMS 365 (iSMS) PCR Number :: PCRSDI-12380 Start Date and Time (GMT):: 18th November 2026 05:00 Hrs. End Date and Time (GMT):: 18th November 2026 13:00 Hrs. Impact Mobile Terminating (MT) Traffic : Potential latency Mobile Originated (MO) Traffic : Potential latency DR Notification : No Impact Report Manager Access : No Impact Report Manager Statistics : No Impact 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. Nov 18, 2026 - 05:00 UTC External Maintenance - Toll-Free Number Provider Nov 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: 2026-11-19 04:00 UTC Maintenance end time: 2026-11-19 08:00 UTC Posted on Oct 21, 2026 - 04:07 UTC External Maintenance - US and Canada Nov 19, 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: 2026-11-19 05:00 UTC Maintenance End Time: 2026-11-19 11:00 UTC Posted on Oct 01, 2026 - 03:17 UTC External Maintenance - Toll-Free Number Provider Nov 24, 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: 2026-11-24 04:00 UTC Maintenance end time: 2026-11-24 08:00 UTC Posted on Oct 21, 2026 - 04:07 UTC Service Announcement & Maintenance: New SMSC Site & Whitelisting Requirements - US Region Dec 1, 2026 07:00-08:00 UTC Update - We are writing to inform you that the concerned maintenance activity has been postponed to the below mentioned timeframe. Type: Service Announcement & Maintenance Previous Start Time: 2026-10-15 07:00 UTC Previous End Time: 2026-10-15 08:00 UTC New Start Time: 2026-12-01 07:00 UTC New End Time: 2026-12-01 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 2026-10-15 during the aforementioned time window. US SMPP: us6.smpp.api.sinch.com: US HTTP SMS: us6.httpsms.api.sinch.com US Lookup API: us6.httplookup.api.sinch.com 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. Oct 09, 2026 - 23:30 UTC Update - We are writing to inform you that the concerned maintenance activity has been postponed to the below mentioned timeframe. Type: Service Announcement & Maintenance Previous Start Time: 2026-10-01 07:00 UTC Previous End Time: 2026-10-01 08:00 UTC New Start Time: 2026-10-15 07:00 UTC New End Time: 2026-10-15 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 2026-10-15 during the aforementioned time window. US SMPP: us6.smpp.api.sinch.com: US HTTP SMS: us6.httpsms.api.sinch.com US Lookup API: us6.httplookup.api.sinch.com 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. Sep 24, 2026 - 17:58 UTC Scheduled - 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. Jul 10, 2026 - 08:37 UTC DI SMS 365 (SMSX) | Operator Services | Application, Database and System Maintenance || PCR Number #PCRSDI-12386 Dec 7, 2026 05:00-10:00 UTC Services :: DI SMS 365 (SMSX) PCR Number :: PCRSDI-12386 Start Date and Time (GMT):: 7th December 2026 05:00 Hrs. End Date and Time (GMT):: 7th December 2026 10:00 Hrs. Impact Mobile Terminating (MT) Traffic : Potential latency Mobile Originated (MO) Traffic : Potential latency DR Notification : No Impact Report Manager Access : No Impact Report Manager Statistics : No Impact 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. Posted on Oct 21, 2026 - 15:19 UTC DI SMS 365 (SMSX) | Operator Services | Application, Database and System Maintenance || PCR Number #PCRSDI-12387 Dec 8, 2026 05:00-10:00 UTC Services :: DI SMS 365 (SMSX) PCR Number :: PCRSDI-12387 Start Date and Time (GMT):: 8th December 2026 05:00 Hrs. End Date and Time (GMT):: 8th December 2026 10:00 Hrs. Impact Mobile Terminating (MT) Traffic : Potential latency Mobile Originated (MO) Traffic : Potential latency DR Notification : No Impact Report Manager Access : No Impact Report Manager Statistics : No Impact 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. Posted on Oct 21, 2026 - 15:20 UTC DI SMS 365 (SMSX) | Operator Services | Application, Database and System Maintenance || PCR Number # PCRSDI-12388 Dec 9, 2026 05:00-10:00 UTC Services :: DI SMS 365 (SMSX) PCR Number :: PCRSDI-12388 Start Date and Time (GMT):: 9th December 2026 05:00 Hrs. End Date and Time (GMT):: 9th December 2026 10:00 Hrs. Impact Mobile Terminating (MT) Traffic : Potential latency Mobile Originated (MO) Traffic : Potential latency DR Notification : No Impact Report Manager Access : No Impact Report Manager Statistics : No Impact 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. Posted on Oct 21, 2026 - 15:21 UTC Past Incidents Nov 11, 2026 Post-Incident Notification - Customer Dashboard login Resolved - We experienced an issue causing some users to not be able to login to Customer Dashboard The issue was identified and a fix was deployed to resolve the issue Incident Start Time: 2026-11-11 13:37 UTC Incident End Time: 2026-11-11 14:38 UTC If you have any questions, please contact support@sinch.com Nov 11, 13:37 UTC DI SMS 365 (SMSx) | Operator Services | Application, Database and System Maintenance || PCR Number #PCRSDI-12447 Completed - The scheduled maintenance has been completed. Nov 11, 11:01 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 11, 07:00 UTC Scheduled - Services :: DI SMS 365 (SMSx) PCR Number :: PCRSDI-12447 Start Date and Time (GMT):: 11th November 2026 07:00 Hrs. End Date and Time (GMT):: 11th November 2026 11:00 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 applications. 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. Nov 4, 13:52 UTC DI SMS 365 (SMSx) | Operator Services | Network Maintenance | PCR Number #PCRSDI-12431 Completed - The scheduled maintenance has been completed. Nov 11, 11:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 11, 07:01 UTC Scheduled - Services :: DI SMS 365 PCR Number :: PCRSDI-12431 Start Date and Time (GMT):: 11th November 2026 07:00 Hrs. End Date and Time (GMT):: 1th November 2026 11:00 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 applications. 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. Nov 6, 19:49 UTC External Maintenance - Toll-Free Number Provider Completed - The scheduled maintenance has been completed. Nov 11, 10:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 11, 05:01 UTC Scheduled - Our Toll-Free Number Provider has scheduled a maintenance. Impact SMS: Clients may experience delayed or failed MT/MO traffic towards the United States and Canada. Impact MMS: Clients may experience delayed or failed MT/MO traffic towards the United States. Maintenance start time: 2026-11-11 05:00 UTC Maintenance end time: 2026-11-11 10:00 UTC Nov 4, 07:13 UTC Sinch Scheduled Maintenance - Core Voice Calling Services - SBCs & Carrier Gateways (Americas region) Completed - The scheduled maintenance has been completed. Nov 11, 05:02 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 11, 04:01 UTC Scheduled - Sinch Core Voice Calling Services (Americas region) will be undergoing maintenance to include support for: - routing and media handling updates on the call routing platform, including media redirect headers. - AMR-WB codec for re-INVITEs to prepare for full support of AMR-WB. - improvements for media quality reporting and visibility. Sinch is taking precautions to prevent service impacts, but note that the scheduled work may result in a brief interruption with your service. This is being sent as a courtesy notice if you experience issues that extend beyond the maintenance window. We appreciate your patience and apologize for any inconvenience during this maintenance period. If the maintenance is extended or cancelled, we will advise accordingly. Please contact support@sinch.com for further information. Nov 6, 01:48 UTC Sinch Scheduled Maintenance - Elastic SIP Trunking - SBCs & Carrier Gateways Completed - The scheduled maintenance has been completed. Nov 11, 05:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 11, 04:00 UTC Scheduled - Sinch Elastic SIP Trunking will be undergoing maintenance to include support for: - routing and media handling updates on the call routing platform, including media redirect headers. - AMR-WB codec for re-INVITEs to prepare for full support of AMR-WB. - improvements for media quality reporting and visibility. Sinch is taking precautions to prevent service impacts, but note that the scheduled work may result in a brief interruption with your service. This is being sent as a courtesy notice if you experience issues that extend beyond the maintenance window. We appreciate your patience and apologize for any inconvenience during this maintenance period. If the maintenance is extended or cancelled, we will advise accordingly. Please contact support@sinch.com for further information. Nov 6, 01:56 UTC Nov 10, 2026 Sinch Scheduled Maintenance - Core Voice Calling Services - SBCs & Carrier Gateways (APAC and EMEA) Completed - The scheduled maintenance has been completed. Nov 10, 21:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 10, 20:00 UTC Scheduled - Sinch Core Voice Calling Services will be undergoing maintenance to include support for: - routing and media handling updates on the call routing platform, including media redirect headers. - AMR-WB codec for re-INVITEs to prepare for full support of AMR-WB. - improvements for media quality reporting and visibility. Sinch is taking precautions to prevent service impacts, but note that the scheduled work may result in a brief interruption with your service. This is being sent as a courtesy notice if you experience issues that extend beyond the maintenance window. We appreciate your patience and apologize for any inconvenience during this maintenance period. If the maintenance is extended or cancelled, we will advise accordingly. Please contact support@sinch.com for further information. Nov 6, 01:54 UTC Campaigns Application Maintenance Completed - The scheduled maintenance has been completed. Nov 10, 13:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 10, 12:30 UTC Scheduled - Fix preview for users using custom sender Nov 10, 11:45 UTC DI SMS 365 (SMSx) | Operator Services | Application, System Maintenance | PCR Number #PCRSDI-12444 Completed - The scheduled maintenance has been completed. Nov 10, 11:01 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 10, 07:01 UTC Scheduled - Services :: DI SMS 365 (SMSx) PCR Number :: PCRSDI-12444 Start Date and Time (GMT):: 10th November 2026 07:00 Hrs. End Date and Time (GMT):: 10th November 2026 11:00 Hrs. Impact: Mobile Terminating (MT) Traffic: No Impact Mobile Originated (MO) Traffic: No Impact DR Notification: No Impact Description: 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 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. Nov 6, 19:45 UTC DI SMS 365 (iSMS) | Operator Services | Application Maintenance | PCR Number #PCRSDI-12453 Completed - The scheduled maintenance has been completed. Nov 10, 11:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 10, 06:00 UTC Scheduled - Services: DI SMS 365 (iSMS) PCR Number: PCRSDI-12453 Start Date and Time (GMT) :: 10th November 2026 6:00 Hrs. End Date and Time (GMT) :: 10th November 2026 11:00 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. Nov 6, 15:36 UTC External Maintenance - Toll-Free Number Provider Completed - The scheduled maintenance has been completed. Nov 10, 10:02 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 10, 05:00 UTC Scheduled - Our Toll-Free Number Provider has scheduled a maintenance. Impact SMS: Clients may experience delayed or failed MT/MO traffic towards the United States and Canada. Impact MMS: Clients may experience delayed or failed MT/MO traffic towards the United States. Maintenance start time: 2026-11-10 05:00 UTC Maintenance end time: 2026-11-10 10:00 UTC Nov 4, 07:01 UTC DI SMS 365 (SMSx, MM4, MM7) | Operator Services | Network Maintenance | PCR Number #PCRSDI-12446 Completed - The scheduled maintenance has been completed. Nov 10, 10:01 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 10, 07:00 UTC Scheduled - Services :: DI SMS 365 PCR Number :: PCRSDI-12446 Start Date and Time (GMT):: 10th November 2026 07:00 Hrs. End Date and Time (GMT):: 10th November 2026 10:00 Hrs. Impact: Mobile Terminating (MT) Traffic: No Impact Mobile Originated (MO) Traffic: No Impact DR Notification: No Impact Description: 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 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. Nov 6, 19:42 UTC External Maintenance - US and Canada Completed - The scheduled maintenance has been completed. Nov 10, 10:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 10, 03:00 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: 2026-11-10 03:00 UTC Maintenance end time: 2026-11-10 10:00 UTC Nov 6, 12:59 UTC Delivery Issue - SMS Verification - China Resolved - This incident has been resolved. Incident Start Time: 2026-11-06 02:57 UTC Incident End Time: 2026-11-10 02:00 UTC Nov 10, 04:50 UTC Update - We are continuing to investigate this issue. Nov 10, 01:08 UTC Update - We are continuing to investigate this issue. Nov 9, 00:53 UTC Update - We are continuing to investigate this issue. Nov 8, 01:01 UTC Update - We are continuing to investigate this issue. Nov 7, 00:02 UTC Update - We are continuing to investigate this issue. Nov 6, 15:13 UTC Update - We are continuing to investigate this issue. Nov 6, 10:03 UTC Update - We are continuing to investigate this issue. Nov 6, 07:01 UTC Investigating - We are currently observing delivery issues towards China for SMS Verification traffic. Incident Start Time: 2026-11-06 02:57 UTC Impact: Delayed MTs/Failed MTs/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com. Nov 6, 05:05 UTC Delivery Issue France - Bouygues Telecom Resolved - This incident has been resolved. Incident Start Time: 2026-11-09 12:07 UTC Incident End Time: 2026-11-10 01:40 UTC Nov 10, 04:00 UTC Monitoring - A fix has been implemented and we are monitoring the results. Nov 10, 01:33 UTC Update - We are continuing to investigate this issue. Nov 10, 00:13 UTC Update - We are continuing to investigate this issue. Nov 9, 19:25 UTC Update - We are continuing to investigate this issue. Nov 9, 16:10 UTC Investigating - We are currently observing delivery issues in France - Bouygues Telecom Incident Start Time: 2026-11-09 12:07 UTC Impact: Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com. Nov 9, 14:02 UTC Nov 9, 2026 Service Degradation - Customer Dashboard Resolved - This incident has been resolved. Nov 9, 20:39 UTC Investigating - We are currently facing a service degradation on the customer dashboard, Dashboard.sinch.com. Impact: Sign up is currently degraded. Our engineering team is working to restore full functionality as soon as possible. For any inquiries, please contact support@sinch.com. Nov 9, 19:26 UTC Campaigns Application Maintenance Completed - The scheduled maintenance has been completed. Nov 9, 14:45 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 9, 14:15 UTC Scheduled - We are deploying small display improvements to the message previewer for RCS and WhatsApp messages. Nov 9, 13:57 UTC DI SMS 365 (MM7) | Operator Services | Application Maintenance || PCR Number #PCRSDI-12424 Completed - The scheduled maintenance has been completed. Nov 9, 11:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 9, 07:00 UTC Scheduled - Services :: DI SMS 365 (MM7) PCR Number :: PCRSDI-12424 Start Date and Time (GMT):: 9th November 2026 07:00 Hrs. End Date and Time (GMT):: 9th November 2026 11:00 Hrs. Impact Mobile Terminating (MT) Traffic : No Impact Mobile Originated (MO) Traffic : No Impact DR Notification : No Impact Report Manager Access : No Impact Report Manager Statistics : No Impact Description: Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal application and systems. 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. Nov 6, 19:39 UTC Nov 8, 2026 Sinch Contact Pro Certificate renewal - CUSTOMER ACTION REQUIRED - AU Completed - The scheduled maintenance has been completed. Nov 8, 09:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 8, 08:01 UTC Scheduled - Dear Customer, The Sinch Contact Pro certificate *.cc.sinch.com will be renewed during Sunday November 8th, 2026. Start time: 2026-11-8 (Sunday) 8 AM UTC End time: 2026-11-8 (Sunday) 9 AM UTC During the maintenance window, all voice channels will experience a short disruption, up to 10 minutes. Customer Action: The certificate authority and the issuer chain will change to Amazon. To avoid potential connection issues, Sinch strongly recommends verifying the certificate trust relationship in advance. How to verify the certificate trust relationship: Contact Pro UIs (e.g., Communication Panel): Visit https://certificatetest.cc.sinch.com/, Ensure that no security warnings appear when connecting. Integrations using cc.sinch.com (e.g., CRM integrations): Check that your system trusts the new issuer chain. You can also test connectivity using URL https://certificatetest.cc.sinch.com/ . SIP trunks: Review your configured trusted issuers to ensure the new issuer chain is accepted. New certificate details: CN = cc.sinch.com (*.cc.sinch.com) Serial: 0A:22:B4:2A:71:41:AF:02:70:2B:81:4A:CC:70:24:EA Issuer: CN = Amazon RSA 2048 M04 CN = Amazon RSA 2048 M04 Serial: 07:73:12:4F:2A:95:2E:3E:D1:8A:58:BD:B8:5D:1B:C0:CE:5F:27 Issuer: Amazon Root CA 1 CN = Amazon Root CA 1 Serial: 06:6C:9F:CF:99:BF:8C:0A:39:E2:F0:78:8A:43:E6:96:36:5B:CA Issuer: Amazon Root CA 1 Certificates are available for download here: https://clxgroup.sharepoint.com/:f:/s/EXTSinchSharing1/IgC-iGB_R7TkSJzUCFHnT7ulAcom1Bo2RLwLJm9XrAmregQ?e=HNH6tC For additional information or questions, please contact us via the Sinch Enterprise Support portal: https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181 Best regards, Sinch Contact Pro Team Oct 8, 09:44 UTC Sinch Contact Pro Certificate renewal - CUSTOMER ACTION REQUIRED - Americas Completed - The scheduled maintenance has been completed. Nov 8, 08:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 8, 07:00 UTC Scheduled - Dear Customer, The Sinch Contact Pro certificate *.cc.sinch.com will be renewed during Sunday November 8th, 2026. Start time: 2026-11-8 (Sunday) 7 AM UTC End time: 2026-11-8 (Sunday) 8 AM UTC During the maintenance window, all voice channels will experience a short disruption, up to 10 minutes. Customer Action: The certificate authority and the issuer chain will change to Amazon. To avoid potential connection issues, Sinch strongly recommends verifying the certificate trust relationship in advance. How to verify the certificate trust relationship: Contact Pro UIs (e.g., Communication Panel): Visit https://certificatetest.cc.sinch.com/, Ensure that no security warnings appear when connecting. Integrations using cc.sinch.com (e.g., CRM integrations): Check that your system trusts the new issuer chain. You can also test connectivity using URL https://certificatetest.cc.sinch.com/ . SIP trunks: Review your configured trusted issuers to ensure the new issuer chain is accepted. New certificate details: CN = cc.sinch.com (*.cc.sinch.com) Serial: 0A:22:B4:2A:71:41:AF:02:70:2B:81:4A:CC:70:24:EA Issuer: CN = Amazon RSA 2048 M04 CN = Amazon RSA 2048 M04 Serial: 07:73:12:4F:2A:95:2E:3E:D1:8A:58:BD:B8:5D:1B:C0:CE:5F:27 Issuer: Amazon Root CA 1 CN = Amazon Root CA 1 Serial: 06:6C:9F:CF:99:BF:8C:0A:39:E2:F0:78:8A:43:E6:96:36:5B:CA Issuer: Amazon Root CA 1 Certificates are available for download here: https://clxgroup.sharepoint.com/:f:/s/EXTSinchSharing1/IgC-iGB_R7TkSJzUCFHnT7ulAcom1Bo2RLwLJm9XrAmregQ?e=HNH6tC For additional information or questions, please contact us via the Sinch Enterprise Support portal: https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181 Best regards, Sinch Contact Pro Team Oct 8, 09:43 UTC Sinch Contact Pro Certificate renewal - CUSTOMER ACTION REQUIRED - AF Completed - The scheduled maintenance has been completed. Nov 8, 07:01 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 8, 06:00 UTC Scheduled - Dear Customer, The Sinch Contact Pro certificate *.cc.sinch.com will be renewed during Sunday November 8th, 2026. Start time: 2026-11-8 (Sunday) 6 AM UTC End time: 2026-11-8 (Sunday) 7 AM UTC During the maintenance window, all voice channels will experience a short disruption, up to 10 minutes. Customer Action: The certificate authority and the issuer chain will change to Amazon. To avoid potential connection issues, Sinch strongly recommends verifying the certificate trust relationship in advance. How to verify the certificate trust relationship: Contact Pro UIs (e.g., Communication Panel): Visit https://certificatetest.cc.sinch.com/, Ensure that no security warnings appear when connecting. Integrations using cc.sinch.com (e.g., CRM integrations): Check that your system trusts the new issuer chain. You can also test connectivity using URL https://certificatetest.cc.sinch.com/ . SIP trunks: Review your configured trusted issuers to ensure the new issuer chain is accepted. New certificate details: CN = cc.sinch.com (*.cc.sinch.com) Serial: 0A:22:B4:2A:71:41:AF:02:70:2B:81:4A:CC:70:24:EA Issuer: CN = Amazon RSA 2048 M04 CN = Amazon RSA 2048 M04 Serial: 07:73:12:4F:2A:95:2E:3E:D1:8A:58:BD:B8:5D:1B:C0:CE:5F:27 Issuer: Amazon Root CA 1 CN = Amazon Root CA 1 Serial: 06:6C:9F:CF:99:BF:8C:0A:39:E2:F0:78:8A:43:E6:96:36:5B:CA Issuer: Amazon Root CA 1 Certificates are available for download here: https://clxgroup.sharepoint.com/:f:/s/EXTSinchSharing1/IgC-iGB_R7TkSJzUCFHnT7ulAcom1Bo2RLwLJm9XrAmregQ?e=HNH6tC For additional information or questions, please contact us via the Sinch Enterprise Support portal: https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181 Best regards, Sinch Contact Pro Team Oct 8, 09:43 UTC Sinch Contact Pro Certificate renewal - CUSTOMER ACTION REQUIRED - EU Completed - The scheduled maintenance has been completed. Nov 8, 06:01 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 8, 05:00 UTC Scheduled - Dear Customer, The Sinch Contact Pro certificate *.cc.sinch.com will be renewed during Sunday November 8th, 2026. Start time: 2026-11-8 (Sunday) 5 AM UTC End time: 2026-11-8 (Sunday) 6 AM UTC During the maintenance window, all voice channels will experience a short disruption, up to 10 minutes. Customer Action: The certificate authority and the issuer chain will change to Amazon. To avoid potential connection issues, Sinch strongly recommends verifying the certificate trust relationship in advance. How to verify the certificate trust relationship: Contact Pro UIs (e.g., Communication Panel): Visit https://certificatetest.cc.sinch.com/, Ensure that no security warnings appear when connecting. Integrations using cc.sinch.com (e.g., CRM integrations): Check that your system trusts the new issuer chain. You can also test connectivity using URL https://certificatetest.cc.sinch.com/ . SIP trunks: Review your configured trusted issuers to ensure the new issuer chain is accepted. New certificate details: CN = cc.sinch.com (*.cc.sinch.com) Serial: 0A:22:B4:2A:71:41:AF:02:70:2B:81:4A:CC:70:24:EA Issuer: CN = Amazon RSA 2048 M04 CN = Amazon RSA 2048 M04 Serial: 07:73:12:4F:2A:95:2E:3E:D1:8A:58:BD:B8:5D:1B:C0:CE:5F:27 Issuer: Amazon Root CA 1 CN = Amazon Root CA 1 Serial: 06:6C:9F:CF:99:BF:8C:0A:39:E2:F0:78:8A:43:E6:96:36:5B:CA Issuer: Amazon Root CA 1 Certificates are available for download here: https://clxgroup.sharepoint.com/:f:/s/EXTSinchSharing1/IgC-iGB_R7TkSJzUCFHnT7ulAcom1Bo2RLwLJm9XrAmregQ?e=HNH6tC For additional information or questions, please contact us via the Sinch Enterprise Support portal: https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181 Best regards, Sinch Contact Pro Team Oct 8, 09:43 UTC Chatlayer - EU and US Regions Outage Resolved - We are writing to inform you regarding an incident that affected our Chatlayer platform in the EU and US regions during the below time-frame. Incident Start Time: 2026-11-07 22:34 UTC Incident End Time: 2026-11-08 00:20 UTC During the incident you may have experienced failed requests in the affected regions. If you have any further questions or concerns, please reach out to support@sinch.com. Nov 8, 01:45 UTC Nov 7, 2026 Nov 6, 2026 Delivery Issue Czech Republic - T-Mobile Resolved - This incident has been resolved. Incident Start Time: 2026-11-06 00:30 UTC Incident End Time: 2026-11-06 04:35 UTC Nov 6, 05:05 UTC Update - We are continuing to investigate this issue. Nov 6, 02:11 UTC Investigating - We are currently observing delivery issues in Czech Republic - T-Mobile Incident Start Time: 2026-11-06 00:30 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com. Nov 6, 00:58 UTC Nov 5, 2026 Campaigns Application Maintenance Completed - The scheduled maintenance has been completed. Nov 5, 16:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 5, 15:30 UTC Scheduled - Disable duplication of deleted campaigns in UI via API Nov 5, 15:01 UTC Delivery Issue - France Resolved - This incident has been resolved. Incident Start Time: 2026-11-04 15:08 UTC Incident End Time: 2026-11-05 12:46 UTC Nov 5, 14:31 UTC Monitoring - A fix has been implemented and we are monitoring the results. Nov 5, 13:50 UTC Update - We are continuing to investigate this issue. Nov 5, 12:31 UTC Investigating - We are currently observing delivery issues towards France Incident Start Time: 2026-11-05 08:59 UTC Impact: Delayed MT's/Delayed MO's/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com. Nov 5, 10:26 UTC External Maintenance - United States - T-Mobile Completed - The scheduled maintenance has been completed. Nov 5, 13:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 5, 04:02 UTC Scheduled - United States - T-Mobile has scheduled a maintenance. Impact SMS: Clients may experience delayed or failed Short Code and 10DLC MT/MO traffic towards T-Mobile US Impact MMS: Clients may experience delayed or failed Short Code and 10DLC MT/MO traffic towards T-Mobile US Maintenance Start Time: 2026-11-5 04:00 UTC Maintenance End Time: 2026-11-5 13:00 UTC Nov 3, 20:11 UTC Planned Maintenance - Legacy API Service Enhancement Completed - The scheduled maintenance has been completed. Nov 5, 11:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 5, 07:01 UTC Scheduled - We are writing to inform you that as part of our continuous efforts to ensure high capacity and service quality, Sinch is adding another backend service for our legacy API’s. Start Time: 2026-11-05 07:00 UTC End Time: 2026-11-05 11:00 UTC Impact: Some clients may experience delay in MT traffic. 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. Oct 22, 15:56 UTC Planned Maintenance - REST US and CA Infrastructure Update Completed - The scheduled maintenance has been completed. Nov 5, 09:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 5, 07:00 UTC Scheduled - We are writing to inform you that, as part of our continuous efforts to improve the performance, stability, and reliability of our platform, we will be performing scheduled maintenance on the REST Traffic platform at the times specified below. Type: Maintenance – REST Infrastructure update Start Time: 2026-11-05 07:00 UTC End Time: 2026-11-05 09:00 UTC Impact: REST Traffic – US & CA During the maintenance window, clients making POST and GET requests may experience intermittent service interruptions, increased response times, or temporary request failures due to the infrastructure update activities for 2-5 minutes. 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. Oct 16, 11:24 UTC External Maintenance - Toll-Free Number Provider Completed - The scheduled maintenance has been completed. Nov 5, 08:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 5, 04:00 UTC Scheduled - 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: 2026-11-05 04:00 UTC Maintenance end time: 2026-11-05 08:00 UTC Nov 5, 04:00 UTC External Maintenance - US and Canada Completed - The scheduled maintenance has been completed. Nov 5, 04:01 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 4, 19:00 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: 2026-11-04 19:00 UTC Maintenance End Time: 2026-11-05 04:00 UTC Nov 3, 04:33 UTC Delivery Issue Spain - DigiMobil Resolved - This incident has been resolved. Incident Start Time: 2026-11-05 01:45 UTC Incident End Time: 2026-11-05 02:37 UTC Nov 5, 02:48 UTC Investigating - We are currently observing delivery issues in Spain - DigiMobil Incident Start Time: 2026-11-05 01:45 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com. Nov 5, 02:07 UTC Nov 4, 2026 External Maintenance - United States - T-Mobile Completed - The scheduled maintenance has been completed. Nov 4, 13:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 4, 04:00 UTC Scheduled - United States - T-Mobile has scheduled a maintenance. Impact MMS: Clients may experience delayed or failed Short Code and 10DLC MT/MO traffic towards T-Mobile US. Maintenance start time: 2026-11-04 04:00 UTC Maintenance end time: 2026-11-04 13:00 UTC Nov 3, 10:46 UTC Nov 3, 2026 Delivery Issue Colombia - Claro Resolved - This incident has been resolved. Incident Start Time: 2026-11-03 19:04 UTC Incident Start Time: 2026-11-03 21:40 UTC Nov 3, 23:20 UTC Investigating - We are currently observing delivery issues in Colombia - Claro Incident Start Time: 2026-11-03 19:04 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com. Nov 3, 20:40 UTC Delivery Issue Sweden - Telavox Resolved - This incident has been resolved. Incident Start Time: 2026-11-03 17:24 UTC Incident Start Time: 2026-11-03 18:41 UTC Nov 3, 19:18 UTC Investigating - We are currently observing delivery issues in Sweden - Telavox. Incident Start Time: 2026-11-03 17:24 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com. Nov 3, 18:30 UTC Planned Maintenance - REST AU Infrastructure Update Completed - The scheduled maintenance has been completed. Nov 3, 15:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 3, 14:00 UTC Scheduled - We are writing to inform you that, as part of our continuous efforts to improve the performance, stability, and reliability of our platform, we will be performing scheduled maintenance on the REST Traffic platform at the times specified below. Type: Maintenance – REST Infrastructure update Start Time: 2026-11-03 14:00 UTC End Time: 2026-11-03 15:00 UTC Impact: REST Traffic – AU During the maintenance window, clients making POST and GET requests may experience intermittent service interruptions, increased response times, or temporary request failures due to the infrastructure update activities for 2-5 minutes. 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. Oct 16, 11:04 UTC Delivery Issue Canada - ICE Wireless Resolved - This incident has been resolved. Incident Start Time: 2026-11-03 06:43 UTC Incident End Time: 2026-11-03 12:22 UTC Nov 3, 13:45 UTC Update - This incident has been resolved. Incident Start Time: 2026-11-03 06:43 UTC Incident End Time: 2026-11-03 12:22 UTC Nov 3, 13:45 UTC Update - We are continuing to investigate this issue. Nov 3, 12:08 UTC Update - We are continuing to investigate this issue. Nov 3, 07:36 UTC Update - We are continuing to investigate this issue. Nov 3, 07:28 UTC Investigating - We are currently observing delivery issues in Canada - ICE Wireless Incident Start Time: 2026-11-03 06:43 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com. Nov 3, 07:28 UTC Planned Maintenance - REST BR Infrastructure Update Completed - The scheduled maintenance has been completed. Nov 3, 08:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 3, 07:01 UTC Scheduled - We are writing to inform you that, as part of our continuous efforts to improve the performance, stability, and reliability of our platform, we will be performing scheduled maintenance on the REST Traffic platform at the times specified below. Type: Maintenance – REST Infrastructure update Start Time: 2026-11-03 07:00 UTC End Time: 2026-11-03 08:00 UTC Impact: REST Traffic – BR During the maintenance window, clients making POST and GET requests may experience intermittent service interruptions, increased response times, or temporary request failures due to the infrastructure update activities for 2-5 minutes. 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. Oct 16, 10:32 UTC Delivery Issue Bolivia - Entel Resolved - This incident has been resolved. Incident Start Time: 2026-11-03 02:35 UTC Incident End Time: 2026-11-03 07:09 UTC Nov 3, 07:54 UTC Update - We are continuing to investigate this issue. Nov 3, 05:12 UTC Investigating - We are currently observing delivery issues in Bolivia - Entel. Incident Start Time: 2026-11-03 02:35 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com. Nov 3, 03:33 UTC Planned Maintenance – REST EU Infrastructure Update Completed - The scheduled maintenance has been completed. Nov 3, 07:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 3, 05:00 UTC Scheduled - We are writing to inform you that, as part of our continuous efforts to improve the performance, stability, and reliability of our platform, we will be performing scheduled maintenance on the REST Traffic platform at the times specified below. Type: Maintenance – REST Infrastructure update Start Time: 2026-11-03 05:00 UTC End Time: 2026-11-03 07:00 UTC Impact: REST Traffic – EU During the maintenance window, clients making POST and GET requests may experience intermittent service interruptions, increased response times, or temporary request failures due to the infrastructure update activities for 2-5 minutes. 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. Oct 16, 10:30 UTC Post-Incident Notification - United States & Canada - All destinations Resolved - We experienced an issue causing degradation in the US & CA. Incident Start Time: 2026-11-03 05:46 UTC Incident End Time: 2026-11-03 06:00 UTC Impact SMS: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts If you have any questions, please contact support@sinch.com Nov 3, 04:46 UTC Nov 2, 2026 Campaigns Application Maintenance Completed - The scheduled maintenance has been completed. Nov 2, 11:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 2, 10:40 UTC Scheduled - Internal maintenance on the statistics processing Nov 2, 10:20 UTC External Maintenance - United Kingdom - O2 Completed - The scheduled maintenance has been completed. Nov 2, 06:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 1, 22:30 UTC Scheduled - United Kingdom - O2 has scheduled a maintenance. Impact: Delayed MT's/Missing delivery receipts/Late delivery receipts Maintenance start time: 2026-11-01 22:30 UTC Maintenance end time: 2026-11-02 06:00 UTC Oct 30, 13:18 UTC Delivery Issue United States - Google Voice Resolved - This incident has been resolved. Incident Start Time: 2026-11-01 23:57 UTC Incident End Time: 2026-11-02 04:38 UTC Nov 2, 04:46 UTC Update - We are continuing to investigate this issue. Nov 2, 03:03 UTC Investigating - We are currently observing delivery issues in United States - Google Voice Incident Start Time: 2026-11-01 23:57 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com. Nov 2, 01:26 UTC External Maintenance - Singapore - Singtel Completed - Dear Client, We are writing to inform you that the previously scheduled maintenance has been cancelled. Original Start Time: Start Time: 2026-11-02 17:00 UTC Original End Time: 2026-11-02 22:00 UTC This maintenance will no longer take place. If you have any questions, please contact support@sinch.com. Nov 2, 01:35 UTC Scheduled - Singapore - Singtel has scheduled a maintenance. Impact: Clients may experience delays on MT/MO traffic. Start Time: 2026-11-02 17:00 UTC End Time: 2026-11-02 22:00 UTC Oct 22, 16:02 UTC Nov 1, 2026 Oct 31, 2026 No incidents reported. Oct 30, 2026 Sinch Engage - HTTP support for Sinch Engage APIs ends Completed - The scheduled maintenance has been completed. Oct 30, 16:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Oct 30, 11:00 UTC Scheduled - We are writing to inform you that after 30 October 2026, Sinch Engage will no longer accept API requests sent over HTTP. If your integration connects using http:// URLs, you'll need to change them to https:// before then. It's a small change: your API, credentials and integration logic all stay the same. More information about the change can be found here: https://support.app.sinch.com/hc/en-us/articles/17805834983311-Announcing-the-end-of-HTTP-support-for-Sinch-Engage-APIs Oct 25, 22:49 UTC Oct 29, 2026 Campaigns Application Maintenance Completed - The scheduled maintenance has been completed. Oct 29, 11:30 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Oct 29, 11:15 UTC Scheduled - small UI bug fixes. Internal improvements. Oct 29, 11:04 UTC DI SMS 365 (SMSx) | Operator Services | Application, System Maintenance | PCR Number #PCRSDI-12402 Completed - The scheduled maintenance has been completed. Oct 29, 10:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Oct 29, 05:00 UTC Scheduled - Services :: DI SMS 365 (SMSx) PCR Number :: PCRSDI-12402 Start Date and Time (GMT):: 29th October 2026 05:00 Hrs. End Date and Time (GMT):: 29th October 2026 10:00 Hrs. Impact: Mobile Terminating (MT) Traffic: Potential latency Mobile Originated (MO) Traffic: Potential latency DR Notification: Potential latency Number Queries: Potential impact Description: 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 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. Oct 27, 19:27 UTC External Maintenance - United States and Canada Completed - The scheduled maintenance has been completed. Oct 29, 07:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Oct 29, 03:00 UTC Scheduled - An external supplier 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: 2026-10-29 03:00 UTC Maintenance End Time: 2026-10-29 07:00 UTC Sep 4, 08:53 UTC Oct 28, 2026 Delivery Issue Belgium - VOOmobile & MobiStar Resolved - This incident has been resolved. Incident Start Time: 2026-10-28 15:06 UTC Incident End Time: 2026-10-28 20:25 UTC Oct 28, 21:51 UTC Update - We are continuing to investigate this issue. Oct 28, 19:02 UTC Update - We are currently observing delivery issues in Belgium - VOOmobile & MobiStar Incident Start Time: 2026-10-28 15:06 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com. Oct 28, 16:41 UTC Investigating - We are currently observing delivery issues in Belgium - VOOmobile Incident Start Time: 2026-10-28 15:06 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com. Oct 28, 15:37 UTC Scheduled Maintenance – Chatlayer database upgrade Completed - The scheduled maintenance has been completed. Oct 28, 16:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Oct 28, 06:00 UTC Scheduled - We are writing to inform you that, as part of our continuous efforts to improve the performance and reliability of the Chatlayer platform, we will be performing a scheduled database upgrade at the times specified below. Type: Scheduled Maintenance – Chatlayer database upgrade Date: Wednesday, 28th of October 2026 This is a rolling, region-by-region upgrade. No full service outage is expected. Customers may experience brief, intermittent service degradation of up to 1 hour during their region's maintenance window, as the systems cycle through the upgrade. Windows: US: 08:00 – 09:00 UTC South America: 09:00 – 10:00 UTC India / APAC: 15:00 – 16:00 UTC EMEA: 06:00 – 07:00 UTC Impact: Customers may experience brief, intermittent delays to bot responses for up to 1 hour during their region's window. No message loss or extended downtime is expected. We appreciate your patience and apologize for any inconvenience during this maintenance period. If for any reason the maintenance is extended or rescheduled, we will update this page accordingly. Please contact support@sinch.com should you require further information or assistance. Oct 14, 09:33 UTC DI SMS 365 (SMSx) | Operator Services | Application Maintenance, System | PCR Number #PCRSDI-12397 Completed - The scheduled maintenance has been completed. Oct 28, 10:02 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Oct 28, 06:01 UTC Scheduled - Services :: DI SMS 365 PCR Number :: PCRSDI-12397 Start Date and Time (GMT):: 28th October 2026 06:00 Hrs. End Date and Time (GMT):: 28th October 2026 10:00 Hrs. Impact: Mobile Terminating (MT) Traffic: Potential latency Mobile Originated (MO) Traffic: Potential latency Description: 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 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. Oct 21, 15:27 UTC DI SMS 365 (MM4) | Operator Services | Application Maintenance | PCR Number #PCRSDI-12438 Completed - The scheduled maintenance has been completed. Oct 28, 10:01 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Oct 28, 06:02 UTC Scheduled - Services :: DI SMS 365 (MM4) PCR Number :: PCRSDI-12438 Start Date and Time (GMT):: 28th October 2026 6:00 Hrs. End Date and Time (GMT):: 28th October 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 applications. 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. Oct 28, 06:00 UTC DI SMS 365 (SMSX) | Operator Services | Application, Database and System Maintenance || PCR Number #PCRSDI-12383 Completed - The scheduled maintenance has been completed. Oct 28, 10:00 UTC In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Oct 28, 05:00 UTC Scheduled - Services :: DI SMS 365 (SMSX) PCR Number :: PCRSDI-12383 Start Date and Time (GMT):: 28th October 2026 05:00 Hrs. End Date and Time (GMT):: 28th October 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. Oct 21, 15:16 UTC Incident History Powered by Atlassian Statuspage