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We are currently observing delivery issues in United States - AT&T. Incident Start Time: 2025-06-12 16:00 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

We are currently observing delivery issues with Claro Brazil. Incident Start Time: 2025-06-11 08:02 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

We are currently observing delivery issues towards Tele2 Sweden. Incident Start Time: 2025-06-11 04:22 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

We are currently observing delivery issues in Nuuday - Denmark Incident Start Time: 2025-06-11 00:50 UTC. Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

We are currently observing delivery issues towards Tele2 Sweden. Incident Start Time: 2025-06-10 14:36 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

Ticket Number :: MNOC-59366 Service:: MM4 Description :: Monitoring NOC is observing messages being piled and gradually being delivered with delays due to large inflow of volume from customers. Few of our customers may observe delays in delivery for MT and DR messages. Our support team is currently working on high priority to resolve this issue. Monitoring NOC will continue to follow-up and update you on the progress made. Impact :: Mobile Terminating (MT) Traffic: Potential delay in delivery Mobile Originated (MO) Traffic: Potential delay in delivery DR Notification : Not impacted Report Manager Access : Not impacted Report Manager Statistics : Not impacted Incident Start Date & Time (GMT) : 10th June 2025 12:55 GMT If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

We are currently observing delivery issues in France - Legos Incident Start Time: 2025-06-09 11:01 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

We are currently observing delivery issues in Tunisia - Tunicell. Incident Start Time: 2025-06-08 20:09 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

Dear Client, We are writing to inform you that we are currently facing a service degradation for Analytics on the customer dashboard for customers using XMS/Rest API. Impact: Delayed data in Message Search and Analytics on dashboard.sinch.com for customers using XMS/Rest API. Our engineers are working to restore service as soon as possible. We appreciate your patience and apologize for any inconvenience during this period. Please contact support@sinch.com should you require further information or assistance.

We are currently observing delivery issues in Brazil - Claro. Incident Start Time: 2025-06-07 03:01 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

Dear Client, We are writing to inform you that we observed a service degradation for Analytics on the customer dashboard during the below time frame: Incident Start Time: 2025-06-04 13:45 UTC. Incident End Time: 2025-06-06 10:40 UTC Impact: Delayed balance updates and data in Message Search and Analytics on dashboard.sinch.com We apologize for any inconvenience during this period. Please contact support@sinch.com should you require further information or assistance.

We are currently observing issues with our In-app calling. Incident Start Time: 2025-06-05 13:00 UTC Impact: Customers may experience a degradation when using the above mentioned service. We are working on resolving this issue and will provide further updates.

Dear Customer, We experienced a degradation impacting our Verification SMS platform and services, resulting in a temporary disruption in traffic. Incident Start Time: Jun 05, 2025, 10:23 UTC Incident End Time: Jun 05, 2025, 10:51 UTC Our sincere apologies for any disruption to your business.

We are currently observing delivery issues in Colombia - Claro. Incident Start Time: 2025-06-05 04:01 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

The Traffic is resume back to normal and we are monitoring the traffic.

The Traffic is resume back to normal and we are monitoring the traffic.

Ticket Number :: MNOC-59274 Services:: DI SMS 365(iSMS) Impact :: Mobile Terminating (MT) Traffic: Impacted Mobile Originated (MO) Traffic: Impacted Description :: We are writing to inform you that All customers will experience an impact for MO and MT messages due to some issue with internal server , Internal teams are proactively investigating the issue and will update on progress as soon as possible. Incident Start Date & Time (GMT) : 04th June 2025 12:00 GMT If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

The Traffic is resume back to normal and we are monitoring the traffic.

The Traffic is resume back to normal and we are monitoring the traffic.

Ticket Number :: MNOC-59274Services:: DI SMS 365(iSMS)Impact :: Mobile Terminating (MT) Traffic: Impacted Mobile Originated (MO) Traffic: ImpactedDescription ::We are writing to inform you that All customers will experience an impact for MO and MT messages due to some issue with internal server , Internal teams are proactively investigating the issue and will update on progress as soon as possible.Incident Start Date & Time (GMT) : 04th June 2025 12:00 GMT If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We plan to upgrade our SMSC software on our BR1 site during the below maintenance window:Date/time: 2025-06-04 07:00 - 11:00 UTCAffected site: BR1SMPP FQDN: br1.smpp.api.sinch.comHTTP FQDN: br1.httpsms.api.sinch.comENUM FQDN: br1.httplookup.api.sinch.comImpact MT & MO: No traffic impact expectedImpact Number Lookup: No traffic impact expectedIf 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.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Services :: DI MMS 365 (MMX)PCR Number :: PCRSDI-11759Start Date and Time (GMT) :: 03 June 2025 14:00 Hrs.End Date and Time (GMT) :: 03 June 2025 160:00 Hrs.ImpactMobile Terminating (MT) Traffic : No Impact.Mobile Originated (MO) Traffic : No Impact.DR Notification : No Impact.Description:Sinch Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal applications.If you experience any issues during this maintenance, please contact the Operator Service NOC immediately at 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

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We plan to upgrade our SMSC software on our AU2 site during the below maintenance window:Date/time: 2025-06-03 12:00 - 16:00 UTCAffected site: AU2SMPP FQDN: au1-2.smpp.api.sinch.comHTTP FQDN: au1-2.httpsms.api.sinch.comENUM FQDN: au1-2.httplookup.api.sinch.comImpact MT & MO: No traffic impact expectedImpact Number Lookup: No traffic impact expectedIf 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.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We plan to upgrade our SMSC software on our CA2 site during the below maintenance window:Date/time: 2025-06-03 07:00 - 11:00 UTCAffected site: CA2SMPP FQDN: ca1-2.smpp.api.sinch.comHTTP FQDN: ca1-2.httpsms.api.sinch.comENUM FQDN: ca1-2.httplookup.api.sinch.comImpact MT & MO: No traffic impact expectedImpact Number Lookup: No traffic impact expectedIf 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.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

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: 2025-06-03 08:00 UTC End Time: 2025-06-03 10:00 UTCImpact MMS: MMS US, MMS AU, MMS CA. Messages will be Queued and will be processed post upgrade. We expect latency for maximum 17 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.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Services :: DI SMS 365 (iSMS)PCR Number :: PCRSDI-11753Start Date and Time (GMT):: 03rd June 2025, 02:00 Hrs.End Date and Time (GMT):: 03rd June 2025, 04:00 Hrs.ImpactMobile Terminating (MT) Traffic: No ImpactMobile Originated (MO) Traffic: No ImpactDR Notification: No ImpactDescription:Digital Interconnect has scheduled a planned application 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.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We plan to upgrade our SMSC software on our AU1 site during the below maintenance window:Date/time: 2025-06-02 12:00 - 16:00 UTCAffected site: AU1SMPP FQDN: au1-1.smpp.api.sinch.comHTTP FQDN: au1-1.httpsms.api.sinch.comENUM FQDN: au1-1.httplookup.api.sinch.comImpact MT & MO: No traffic impact expectedImpact Number Lookup: No traffic impact expectedIf 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.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Fixing link on Recipient and Data file.

This incident has been resolved. Incident Start Time: 2025-06-02 05:59 UTC Incident End Time: 2025-06-02 07:57 UTC

We are currently observing delivery issues towards Norway - Telia. Incident Start Time: 2025-06-02 05:59 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts. We will update as soon as we have more information.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We plan to upgrade our SMSC software on our CA1 site during the below maintenance window:Date/time: 2025-06-02 07:00 - 11:00 UTCAffected site: CA1SMPP FQDN: ca1-1.smpp.api.sinch.comHTTP FQDN: ca1-1.httpsms.api.sinch.comENUM FQDN: ca1-1.httplookup.api.sinch.comImpact MT & MO: No traffic impact expectedImpact Number Lookup: No traffic impact expectedIf 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.

This incident has been resolved.Incident Start Time: 2025-06-02 05:59 UTC Incident End Time: 2025-06-02 07:57 UTC

We are currently observing delivery issues towards Norway - Telia.Incident Start Time: 2025-06-02 05:59 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts.We will update as soon as we have more information.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Services :: DI E-Mail 365PCR Number :: PCRSDI-11737 Start Date and Time (GMT)::1st June 2025 02:00 UTC.End Date and Time (GMT):: 1st June 2025 04:00 UTC. Description:updated AMI with crowdstrike sensors - writeDB and Retarus-us.Zero/No impact on traffic . Impact: No impact . 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.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Scheduled CHANGE-6406Start Date and Time: 31-May-2025 - 18:00 UTCEnd Date and Time : 31-May-2025 - 20:00 UTCDescription:We will be performing maintenance to upgrade Message Manager to version 6.1.3, which includes VA fixes and a certificate update.Action required: None.Impact: Message Manager will be offline during the maintenance window. Customers are requested not to schedule any campaigns during this period.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. If you have any questions or concerns, please contact your Account Manager.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Dear Client,Sinch will be performing a scheduled maintenance to renew the SSL certificate for the following endpoints: *.httpsms.api.sinch.comType: Scheduled MaintenanceMaintenance: SSL Certificate UpdatesStart Time: 2025-05-30 12:00 UTCEnd Time: 2025-05-30 14:00 UTCImpact:us7.httpsms.api.sinch.combr1-2.httpsms.api.sinch.combr2.httpsms.api.sinch.comus-sf.httpsms.api.sinch.comeu-sf.httpsms.api.sinch.comca-sf.httpsms.api.sinch.comau-sf.httpsms.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 here:https://clxgroup.sharepoint.com/:f:/s/CLX_Support_Anonymous_link/Eup9apd6zipLtbNOfdvz_8oBhSkK22kwQ_LAMI8pESs32Q?e=kV4pOL Please contact support@sinch.com should you require further information or assistance.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Please note that this maintenance will take place during the following times:Maintenance start time: 2025-05-30 05.00 UTCMaintenance end time: 2025-05-30 11.00 UTC

T-Mobile USA has scheduled a maintenance.Impact SMS: Clients may experience delayed or failed Short Code and 10DLC MT/MO traffic towards T-Mobile USImpact MMS: Clients may experience delayed or failed Short Code and 10DLC MT/MO traffic towards T-Mobile USMaintenance start time: 2025-05-30 06.00 UTCMaintenance end time: 2025-05-30 12.00 UTC

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Services :: DI SMS 365 (SMSX)PCR Number :: PCRSDI-11745Start Date and Time (GMT):: 29th May 2025 06:00 Hrs.End Date and Time (GMT):: 29th May 2025 10:00 Hrs.ImpactMobile Terminating (MT) Traffic: Potential Latency.Mobile Originated (MO) Traffic: Potential Latency.DR Notification: Potential Latency.Description:Digital Interconnect has scheduled a planned application 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.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Services :: DI SMS 365 (SMSX)PCR Number :: PCRSDI-11749Start Date and Time (GMT):: 28th May 2025 06:00 Hrs.End Date and Time (GMT):: 28th May 2025 10:00 Hrs.ImpactMobile Terminating (MT) Traffic: Potential Latency.Mobile Originated (MO) Traffic: Potential Latency.DR Notification: Potential Latency.Description:Digital Interconnect has scheduled a planned application 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.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We have a scheduled maintenance related to US1 Conversation API “Apps” and Channel AdaptersMaintenance window: 2025-05-28 09:00 UTC to 10:00 UTCImpact: Clients may experience delayed delivery and receipt of messages routed via the conversation API during the maintenance window. Messages to all channels will be queued. The “App” will have a maximum downtime of 10 minutes during the window.Affected endpoint: us.conversation.api.sinch.comPlanned maintenance of this endpoint occurs on the second and fourth Wednesday each month, between 09:00 UTC and 10:00 UTC.Release notes can be found here: https://developers.sinch.com/docs/release-notes-conversationapi

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

We have a scheduled maintenance related to EU1 Conversation API “Apps” and Channel AdaptersMaintenance window: 2025-05-28 08:00 UTC to 09:00 UTCImpact: Clients may experience delayed delivery and receipt of messages routed via the conversation API during the maintenance window. Messages to all channels will be queued. The “App” will have a maximum downtime of 10 minutes during the window.Affected endpoint: eu.conversation.api.sinch.comPlanned maintenance of this endpoint occurs on the second and fourth Wednesday each month, between 08:00 UTC and 09:00 UTC.Release notes can be found here: https://developers.sinch.com/docs/release-notes-conversationapi

This incident has now been resolved. Incident Start Time: 2025-05-27 01:00 UTC Incident End Time: 2025-05-27 15:05 UTC

The carrier has confirmed a degradation on their end, and they are currently working on resolving the issue. As soon as we have any updates, they will be shared accordingly.

We are currently observing delivery issues in France - Orange. Incident Start Time: 2025-05-27 01:00 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident start time: 2025-05-27 13:25 UTC Incident end time: 2025-05-27 14:12 UTC

We are writing to inform you that we are currently facing a service degradation on the customer dashboard, Dashboard.sinch.com. Impact: Customers may not be able to login to their accounts, or be disconnected while browsing dashboard.sinch.com Our engineers are working to restore service as soon as possible.

This incident has now been resolved.Incident Start Time: 2025-05-27 01:00 UTC Incident End Time: 2025-05-27 15:05 UTC

The carrier has confirmed a degradation on their end, and they are currently working on resolving the issue.As soon as we have any updates, they will be shared accordingly.

We are currently observing delivery issues in France - Orange.Incident Start Time: 2025-05-27 01:00 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receiptsWe will update as soon as we have more information.

This incident has been resolved.Incident start time: 2025-05-27 13:25 UTCIncident end time: 2025-05-27 14:12 UTC

We are writing to inform you that we are currently facing a service degradation on the customer dashboard, Dashboard.sinch.com.Impact: Customers may not be able to login to their accounts, or be disconnected while browsing dashboard.sinch.comOur engineers are working to restore service as soon as possible.

This incident has been resolved. Incident Start Time: 2025-05-27 04:19 UTC Incident End Time: 2025-05-27 04:50 UTC

We are currently observing delivery issues towards Claro Colombia. Incident Start Time: 2025-05-27 04:19 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved.Incident Start Time: 2025-05-27 04:19 UTCIncident End Time: 2025-05-27 04:50 UTC

We are currently observing delivery issues towards Claro Colombia.Incident Start Time: 2025-05-27 04:19 UTCImpact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receiptsWe will update as soon as we have more information.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Dear Client, This is to notify about the scheduled maintenance for the installation of the updated SSL certificate for callback.sinch.com. The SSL certificate will be updated during the times specified below. Start Time: 2025-05-27 03:00 UTCEnd Time: 2025-05-27 05:00 UTC Type: Scheduled Maintenance Maintenance: SSL Certificate Updates Impact: Clients using callback.sinch.com certificate for mutual authentication. callback.sinch.com Download the Certificate Files Here https://clxgroup.sharepoint.com/:f:/s/CLX_Support_Anonymous_link/EgJ4-kRTgeRAmsQmgSMtNjMBUMxW1IGQ0A4_8bmxWU-jzw?e=9pLHpN Link expires in 30 days please download certificates and save them on your end. Please reach out to support if link has expired.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

This incident has been resolved. Incident Start Time: 2025-05-26 14:56 UTC Incident End Time: 2025-05-26 16:10 UTC

We are currently observing delivery issues in France - Legos. Incident Start Time: 2025-05-26 14:56 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved.Incident Start Time: 2025-05-26 14:56 UTCIncident End Time: 2025-05-26 16:10 UTC

We are currently observing delivery issues in France - Legos.Incident Start Time: 2025-05-26 14:56 UTCImpact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receiptsWe will update as soon as we have more information.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Services :: DI E-Mail 365PCR Number :: PCRSDI-11726 Start Date and Time (GMT)::25th May 2025 02:00 UTC.End Date and Time (GMT):: 25th May 2025 04:00 UTC. Description:updated AMI with crowdstrike sensors - scheduler and noscale.Zero/No impact on traffic . Impact: No impact . 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 issue is resolved, and all the services are up and functioning normally.

Ticket Number :: MNOC-59075 Services:: SMSx Description :: Our internal monitoring has alerted to an incident, Customers may observe potential delay in deliver of MO, MT and DLR traffic. We are treating this on priority and our concerned team is trying to fix this issue. Impact :: Mobile Terminating (MT) Traffic: Potential Delay in delivery Mobile Originated (MO) Traffic: Potential Delay in delivery DR Notification : Potential Delay in delivery Incident Start Date & Time (GMT) : 23rd May 2025, 14:08 hrs GMT. If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

This incident has been resolved. Incident Start Time: 2025-05-23 10:00 UTC Incident End Time: 2025-05-23 16:30 UTC

We are continuing to investigate this issue.

We are currently observing delivery issues in Canada - ICE Wireless. Incident Start Time: 2025-05-23 10:00 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Services: DI E-Mail 365Ref Number: NAStart Date and Time (GMT):: 19th May 2025 08:00 GMTEnd Date and Time (GMT):: 23rd May 2025 18:00 GMTImpact:Email traffic: A Service Impact is not to be expected.Description:Dear Client.One of our third party ESP performing a planned System maintenance towards all their data centers.However, we do not expect any service impact during this maintenance window. 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 issue is resolved, and all the services are up and functioning normally.

Ticket Number :: MNOC-59075Services:: SMSxDescription ::Our internal monitoring has alerted to an incident, Customers may observe potential delay in deliver of MO, MT and DLR traffic.We are treating this on priority and our concerned team is trying to fix this issue.Impact ::Mobile Terminating (MT) Traffic: Potential Delay in deliveryMobile Originated (MO) Traffic: Potential Delay in deliveryDR Notification : Potential Delay in deliveryIncident Start Date & Time (GMT) : 23rd May 2025, 14:08 hrs GMT.If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

This incident has been resolved.Incident Start Time: 2025-05-23 10:00 UTCIncident End Time: 2025-05-23 16:30 UTC

We are continuing to investigate this issue.

We are currently observing delivery issues in Canada - ICE Wireless.Incident Start Time: 2025-05-23 10:00 UTCImpact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receiptsWe will update as soon as we have more information.

This incident has been resolved. Incident Start time: 05:20 UTC 2025-05-14 Incident End time: 08:25 UTC 2025-05-14

Dear Client, We would like to inform you that we are currently experiencing a service degradation affecting SMS Administration within the customer dashboard. Impact: You may encounter delays with SMS provisioning and pricing notifications. Our engineering team is actively working to resolve the issue and restore full functionality as soon as possible. We sincerely apologize for the inconvenience and appreciate your patience during this time. For further information or assistance, please contact us at support@sinch.com.

This incident has been resolved.Incident Start time: 05:20 UTC 2025-05-14Incident End time: 08:25 UTC 2025-05-14

Dear Client,We would like to inform you that we are currently experiencing a service degradation affecting SMS Administration within the customer dashboard.Impact: You may encounter delays with SMS provisioning and pricing notifications.Our engineering team is actively working to resolve the issue and restore full functionality as soon as possible.We sincerely apologize for the inconvenience and appreciate your patience during this time.For further information or assistance, please contact us at support@sinch.com.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Services :: DI SMS 365 (SMSX)PCR Number :: PCRSDI-11740Start Date and Time (GMT):: 22nd May 2025 06:00 Hrs.End Date and Time (GMT):: 22nd May 2025 10:00 Hrs.ImpactMobile Terminating (MT) Traffic: No ImpactMobile Originated (MO) Traffic: No ImpactDR Notification: No ImpactDescription:Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal applications. Services are impacted and downtime is expected to be about 1.5 hours. 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 incident has been resolved. Incident Start Time: 2025-05-16 08:38 UTC Incident End Time: 2025-05-16 11:33 UTC

The carrier has informed us that a solution has been implemented, and we are observing an improvement in traffic. We will continue to monitor the results. Incident Start Time: 2025-05-16 08:38 UTC Incident Restoration Time: 2025-05-16 11:33 UTC Impact: Missing delivery receipts, Late delivery receipts

The carrier has confirmed a degradation on their end, and they are currently working on resolving the issue. As soon as we have any updates, they will be shared accordingly.

We are currently observing delivery issues for 10DLC in United States - AT&T. Incident Start Time: 2025-05-16 08:38 UTC Impact for 10DLC: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

Sinch has received an update from AT&T, and AT&T is currently upgrading their network to accommodate the growing demands of the industry and to introduce new services. As part of this upgrade, AT&T is migrating A2P traffic from older network components to a new gateway. During this transition, Sinch, along with other partners, have actively migrated significant volumes of traffic throughout April and May. However, this process encountered some issues that necessitated updates to AT&T's network. These challenges did affect message processing temporarily, but they have since been resolved, and A2P message processing is now operating at the expected service levels. Sinch remains in continuous communication with AT&T regarding the above information, and we have observed a significant improvement following AT&T's corrective actions. We continue to collaborate with AT&T to address a few residual error types that some customers are still experiencing.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We have identified that some customers are not adhering to carrier (AT&T) throughput requirements, which customers will see as throttling errors (error code 362, or 64). We have created a new Sinch Community article that outlines throughput requirements by carrier. Please review these requirements to ensure you are not exceeding the throughput requirements. If you continue to experience throttling errors, We suggest you review the article and adjust your sending speeds: https://community.sinch.com/t5/10DLC/How-much-throughput-will-I-get-on-my-10DLC-Campaigns/ta-p/7037 Alternatives: If you haven't performed vetting for your Brand, we'd suggest you do so. Not executing vetting as part of your Brand registration may result in your Brand having the lowest throughput possible. Brand vetting should result in a vetting score which could place you on a higher level of throughput. Additionally, we are working on several immediate, near and long-term solutions to mitigate throughput and delivery concerns customers are currently experiencing. We are in the process of fine tuning our current internal throttling mechanisms, but the full solution is a long-term project. We appreciate your patience as we continue to mitigate the issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

Thank you for your continued patience as we work through recent delivery issues affecting some AT&T 10DLC traffic. Our engineers are actively working on a fix. We apologize for the inconvenience and appreciate your continued patience. Further updates will be provided as we make progress.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

The issue has been identified and our engineers are working with a fix.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are currently observing delivery issues for 10DLC in United States - AT&T. Incident Start Time: 2025-04-15 15:00 UTC Impact for 10DLC: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved.Incident Start Time: 2025-05-16 08:38 UTC Incident End Time: 2025-05-16 11:33 UTC

The carrier has informed us that a solution has been implemented, and we are observing an improvement in traffic.We will continue to monitor the results.Incident Start Time: 2025-05-16 08:38 UTC Incident Restoration Time: 2025-05-16 11:33 UTC Impact: Missing delivery receipts, Late delivery receipts

The carrier has confirmed a degradation on their end, and they are currently working on resolving the issue.As soon as we have any updates, they will be shared accordingly.

We are currently observing delivery issues for 10DLC in United States - AT&T.Incident Start Time: 2025-05-16 08:38 UTC Impact for 10DLC: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receiptsWe will update as soon as we have more information.

Sinch has received an update from AT&T, and AT&T is currently upgrading their network to accommodate the growing demands of the industry and to introduce new services. As part of this upgrade, AT&T is migrating A2P traffic from older network components to a new gateway.During this transition, Sinch, along with other partners, have actively migrated significant volumes of traffic throughout April and May. However, this process encountered some issues that necessitated updates to AT&T's network. These challenges did affect message processing temporarily, but they have since been resolved, and A2P message processing is now operating at the expected service levels. Sinch remains in continuous communication with AT&T regarding the above information, and we have observed a significant improvement following AT&T's corrective actions.We continue to collaborate with AT&T to address a few residual error types that some customers are still experiencing.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We have identified that some customers are not adhering to carrier (AT&T) throughput requirements, which customers will see as throttling errors (error code 362, or 64). We have created a new Sinch Community article that outlines throughput requirements by carrier. Please review these requirements to ensure you are not exceeding the throughput requirements. If you continue to experience throttling errors, We suggest you review the article and adjust your sending speeds:https://community.sinch.com/t5/10DLC/How-much-throughput-will-I-get-on-my-10DLC-Campaigns/ta-p/7037 Alternatives: If you haven't performed vetting for your Brand, we'd suggest you do so. Not executing vetting as part of your Brand registration may result in your Brand having the lowest throughput possible. Brand vetting should result in a vetting score which could place you on a higher level of throughput. Additionally, we are working on several immediate, near and long-term solutions to mitigate throughput and delivery concerns customers are currently experiencing. We are in the process of fine tuning our current internal throttling mechanisms, but the full solution is a long-term project. We appreciate your patience as we continue to mitigate the issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

Thank you for your continued patience as we work through recent delivery issues affecting some AT&T 10DLC traffic.Our engineers are actively working on a fix.We apologize for the inconvenience and appreciate your continued patience. Further updates will be provided as we make progress.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

We are continuing to work on a fix for this issue.

The issue has been identified and our engineers are working with a fix.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are currently observing delivery issues for 10DLC in United States - AT&T.Incident Start Time: 2025-04-15 15:00 UTC Impact for 10DLC: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receiptsWe will update as soon as we have more information.

This incident has been resolved.

Ticket Number :: MNOC-58998 Services:: DI MMS 365 - MM7 Description :: Our internal monitoring has alerted to an incident, we are observing queues related to MT and DLR traffic within our platform. This would potentially cause delay in delivery for MT, DR traffic Impact :: Mobile Terminating (MT) Traffic: Potential delay in delivery Mobile Originated (MO) Traffic: Not Impacted DR Notification : Potential delay in delivery Incident Start Date & Time (GMT) : 20th May 2025 13:50 hrs GMT If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

The scheduled maintenance has been completed.

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Services :: DI SMS 365 (SMSX)PCR Number :: PCRSDI-11719Start Date and Time (GMT):: 21st May 2025 04:30 Hrs.End Date and Time (GMT):: 21st May 2025 10:00 Hrs.ImpactMobile Terminating (MT) Traffic: Impacted.Mobile Originated (MO) Traffic: Impacted.DR Notification: Impacted.Description:Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal applications. Services are impacted and downtime is expected to be about 1.5 hours. 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 incident has been resolved.

Ticket Number :: MNOC-58998Services:: DI MMS 365 - MM7Description ::Our internal monitoring has alerted to an incident, we are observing queues related to MT and DLR traffic within our platform.This would potentially cause delay in delivery for MT, DR trafficImpact ::Mobile Terminating (MT) Traffic: Potential delay in deliveryMobile Originated (MO) Traffic: Not ImpactedDR Notification : Potential delay in deliveryIncident Start Date & Time (GMT) : 20th May 2025 13:50 hrs GMTIf you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

This incident has been resolved Incident Start Time: 2025-05-15 02:02 UTC Incident Restoration Time: 2025-05-19 17:45 UTC Incident End Time: 2025-05-20 00:59 UTC

We have received confirmation from the carrier that service is restored. We will keep monitoring the situation until we have received final confirmation on resolution of the issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are currently observing delivery issues towards Cellcom US. Incident Start Time: 2025-05-15 02:02 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-07 23:52 UTC Incident End Time: 2025-05-20 21:55 UTC

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are currently observing delivery receipts issues for a subset of messages sent towards Tigo Paraguay. Incident Start Time: 2025-05-07 23:52 UTC Impact: Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolvedIncident Start Time: 2025-05-15 02:02 UTCIncident Restoration Time: 2025-05-19 17:45 UTCIncident End Time: 2025-05-20 00:59 UTC

We have received confirmation from the carrier that service is restored. We will keep monitoring the situation until we have received final confirmation on resolution of the issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are currently observing delivery issues towards Cellcom US.Incident Start Time: 2025-05-15 02:02 UTCImpact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receiptsWe will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-19 14:46 UTC Incident End Time: 2025-05-19 15:44 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We are currently observing delivery issues in Denmark - Nuuday. Incident Start Time: 2025-05-19 14:46 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-19 06:24 UTC Incident End Time: 2025-05-19 07:15 UTC

We are currently observing delivery issues in Colombia - Claro. Incident Start Time: 2025-05-19 06:24 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-17 23:31 UTC Incident End Time: 2025-05-17 04:49 UTC

We are continuing to investigate this issue.

We are currently observing delivery issues towards TIM Brazil. Incident Start Time: 2025-05-17 23:31 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-16 11:29 UTC Incident End Time: 2025-05-16 12:54 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We are currently observing delivery issues towards Denmark - Nuuday. Incident Start Time: 2025-05-16 11:29 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-15 12:00 UTC Incident Start Time: 2025-05-15 16:27 UTC

We are continuing to investigate this issue.

We are currently observing delivery issues in Brazil - Claro Incident Start Time: 2025-05-15 12:00 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident is now resolved. Incident Start Time: 2025-05-14 15:48 UTC Incident Restoration Time: 2025-05-14 19:30 UTC Incident Resolved Time: 2025-05-14 20:12 UTC If you have any questions, please contact us at support@sinch.com

Dear Clients, Our ISP has confirmed that the issues have been resolved. We are observing restoration of services, however you might still experience MT/MO/DLR delays. We will continue to monitor the performance. Service restoration time: 19:30 UTC 14-05-2025

We are continuing to work on a fix for this issue.

Dear Clients, Our ISP has confirmed that they are experiencing an outage. While they investigate the issue we recommend clients connect to our redundant EU1 Site. Clients can connect to our EU1 SMSC with the below FQDNs. Alternative Endpoints: eu1.smpp.api.sinch.com eu1.httpsms.api.sinch.com eu1.httplookup.api.sinch.com

We are currently experiencing an outage on our EU3 site. It is advised that clients connect to our redundant EU1 site for the duration of this issue. Please contact support if you have any questions.

This incident has been resolved. Incident Start Time: 2025-05-14 10:03 UTC Incident End Time: 2025-05-14 14:33 UTC

We are currently observing delivery issues towards Denmark - Nuuday. Incident Start Time: 2025-05-14 10:03 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start time: 11:57 UTC 2025-05-14 Incident End time: 14:35 UTC 2025-05-14

A fix has been implemented and we are monitoring the results.

Dear Client, We are writing to inform you that we are currently facing a service degradation for Analytics on the customer dashboard. Impact: Delayed balance updates and data in Message Search and Analytics on dashboard.sinch.com Our engineers are working to restore service as soon as possible. We appreciate your patience and apologize for any inconvenience during this period. Please contact support@sinch.com should you require further information or assistance.

This incident has been resolved Incident Start Time: 2025-05-12 07:05 UTC Incident End Time: 2025-05-13 22:15 UTC

We are continuing to monitor for any further issues.

A fix has been implemented and we are monitoring the results.

We are continuing to investigate this issue.

Dear Client, We are writing to inform you that we are currently facing a service degradation for Analytics on the customer dashboard. Impact: Delayed balance updates and data in Message Search and Analytics on dashboard.sinch.com Our engineers are working to restore service as soon as possible. We appreciate your patience and apologize for any inconvenience during this period. Please contact support@sinch.com should you require further information or assistance.

This incident has been resolved. Incident Start Time: 2025-05-13 14:02 UTC Incident End Time: 2025-05-13 16:07 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We are currently observing delivery issues in Argentina - Personal. Incident Start Time: 2025-05-13 14:02 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

Dear Clients, The issue with report manager statistics has resolved now. Statistics are up to date now. Start Date and Time(GMT): 12th May 2025, 12:36 GMT End Date and Time(GMT): 12th May 2025, 15:10 GMT If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect and then option 1) and reference this notification.

We are continuing to investigate this issue.

Ticket Number :: MNOC-58857 Services:: DI SMS 365 (SMSx) & (MMX) Description :: Our internal monitoring has alerted to an incident, where we are observing Potential delay in viewing statistics on Report Manager within our SMSx and MMX. We are treating this on priority and our concerned team is trying to fix this issue. 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 :Impacted Incident Start Date & Time (GMT) : 12th May 2025, 12:36 GMT If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

This incident has now been resolved. Incident Start Time: 2025-05-12 07:51 UTC Incident End Time: 2025-05-12 08:53 UTC

We are currently observing delivery issues in Italy - Mass Response. Incident Start Time: 2025-05-12 07:51 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-11 02:03 UTC Incident End Time: 2025-05-11 04:25 UTC

We are continuing to investigate this issue.

We are currently observing delivery issues in Sweden - Tele2. Incident Start Time: 2025-05-11 02:03 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-09 14:13 UTC Incident Start Time: 2025-05-09 19:07 UTC

We are continuing to investigate this issue.

We are currently observing delivery issues in Brazil - Telecall Incident Start Time: 2025-05-09 14:13 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved Incident Start Time: 2025-05-09 14:57 UTC Incident End Time: 2025-05-09 15:42 UTC

We are currently observing delivery issues in Ireland - Eir Telecom. Incident Start Time: 2025-05-09 14:57 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. 2025-05-09 02:17 UTC 2025-05-09 06:23 UTC

We are currently observing delivery issues towards Congo (DRC) - Africell Incident Start Time: 2025-05-09 02:17 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-08 07:04 UTC Incident End Time: 2025-05-05 12:24 UTC

We are continuing to monitor for any further issues.

Performance has been restored. We will continue to monitor and update the status accordingly.

We are currently observing delivery issues towards Tigo Guatemala. Incident Start Time: 2025-05-08 07:04 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-08 05:37 UTC Incident End Time: 2025-05-08 06:34 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

Performance has been restored. We will continue to monitor and update the status accordingly.

We are currently observing delivery issues in Panama - Tigo. Incident Start Time: 2025-05-08 05:37 UTC. Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-08 05:37 UTC Incident End Time: 2025-05-08 09:13 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

Performance has been restored. We will continue to monitor and update the status accordingly.

We are currently observing delivery issues in Nicaragua - Tigo Incident Start Time: 2025-05-08 05:37 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-07 21:58 UTC Incident End Time: 2025-05-08 04:33 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We are continuing to investigate this case.

We are continuing to investigate this case.

We are currently observing delivery issues in Panama - Tigo. Incident Start Time: 2025-05-07 21:58 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved.

A fix has been implemented and we are monitoring the results.

We are actively applying the fix and will confirm once it is deployed.

We have identified an issue affecting newly purchased US and Canada numbers in Sinch Dashboard. This issue will allow the user to purchase numbers in the UI or API, but the assignment to the voice application is failing. We are actively working to resolve this. Updates will be provided.

Dear Clients, The issue with report manager statistics has resolved now. Statistics are up to date now. Start Date and Time(GMT): 06th May 2025, 13:22 GMT End Date and Time(GMT): 06th May 2025, 15:22 GMT If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect and then option 1) and reference this notification.

Ticket Number :: MNOC-58751 Services:: DI SMS 365 (SMSx) Description :: Our internal monitoring has alerted to an incident, where we are observing Potential delay in viewing statistics on Report Manager within our SMSx. We are treating this on priority and our concerned team is trying to fix this issue. 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 :Impacted Incident Start Date & Time (GMT) : 6th May 2025, 13:22 GMT If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

We have observed delivery issues in Ooredoo - Qatar Incident Start Time: 2025-05-06 01:17 UTC. Incident Start Time: 2025-05-06 05:44 UTC. Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

This incident has been resolved. Incident Start Time: 2025-05-05 15:00 UTC Incident End Time: 2025-05-05 22:48 UTC

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are currently observing delivery issues in Brazil - Tim. Incident Start Time: 2025-05-05 15:00 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-05-05 03:03 UTC Incident End Time: 2025-05-05 13:39 UTC

Degradation has been confirmed on operators end, and they are currently working on resolving the issue. As soon as we have any updates, they will be shared accordingly.

We are continuing to investigate this issue.

We are currently observing delivery issues in Myanmar - Ooredoo. Incident Start Time: 2025-05-05 03:03 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

The performance issue has been resolved.

The Campaigns platform and API in Europe had performance issue between 10:55 AM and 11:15 AM (UTC+2). Requests took more than 30 seconds to respond.

This incident has been resolved. Incident Start Time: 2025-04-22 11:22 UTC Incident End Time: 2025-04-28 13:00 UTC

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are currently observing delivery issues in Brazil - SurfTelecom. Incident Start Time: 2025-04-22 11:22 UTC Impact is limited to a subset of the traffic. Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident start time: 2025-04-28 12:25 UTC Incident start time: 2025-04-29 08:00 UTC

We are continuing to experience a degradation for our traffic toward the below destinations as a result of the aforementioned power outage. Portugal - Multiple operators Morocco - Orange Morocco Spain - Multiple operators

Dear Client, The power outage may also affect our services towards the following countries and operators: Portugal - Multiple operators Morocco - Orange Morocco Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will provide any further information as we receive it.

We are continuing to investigate this issue.

Dear Client, Please be aware that Spain is currently experiencing a major power outage which may cause a general degradation of our services towards Spain. Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts Incident start time: 2025-04-28 12:25 UTC We will update our Status Page with new information as we receive it.

This incident has been resolved Incident Start Time: 2025-04-29 01:44 UTC Incident End Time: 2025-04-29 03:19 UTC

We are continuing to investigate this issue.

We are currently observing delivery issues in France - SFR Incident Start Time: 2025-04-29 01:44 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-04-24 18:04 UTC Incident End Time: 2025-04-25 13:56 UTC

We are continuing to investigate this issue.

We are currently observing delivery issues in Equatorial Guinea - Orange Incident Start Time: 2025-04-24 18:04 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

Past one hour of complete monitoring and health checks confirm services has remained stable with no errors / anomalies. We are happy to call on complete resolution and normalcy to the service. We sincerely apologize to our customers for the prolonged disruption and we thank you for your patience and understanding during this difficult time. We will pursue for a complete root cause, preventative measures with our third-party network provider and update as soon as we have.

We are relieved to communicate the service has returned to normalcy, we are seeing successful incoming and outgoing traffic from all our customers connecting via SIGTRAN. Third party network provider updated us that their downstream provider TATA COLT experienced a network hardware device failure that required replacement to restore connectivity. Our monitoring continues with heightened availability in order to confirm sustained stability. We will follow up with our third-party network provider for a complete root cause and preventative measures.

Our third party network provider updated Sinch that their Downstream network provider has transferred the incident to their internal IP CORE Team to remediate identified routes and service failure. We are awaiting further updates from third party network provider and consistently following up. We will keep updating on the progress of remediation.

Downstream network provider engaged Tier 2 technician to look into this issue. Our Network Engineering Group is actively following up with 3rd Party network service provider. We are working with our partners to remediate the connectivity issue on priority.

A core network circuit failure has been identified at a downstream TATA COLT Network environment and a remote service engineer has been dispatched by TATA COLT Support. Our third party network service provider is in continued collaboration to bring on a resolution at the earliest and we at Sinch on priority are actively following up with network service provider towards remediations.

Extensive diagnositcs within 3rd Party network service provider along with our Network Engineering Group was conducted in an effort to determine & isolate the cause. Unfortunately third party network provider did not identify any problems / errors within their network environment. We have further engaged a downstream network provider via TATA that should be assessed and diagnosed as well. Our customers continue to experience failures, delays and we sincerely apologize for this interruption. Please be assured we remain available in the ongoing Emergency Response Bridge along with 3rd party service providers with utmost priority on full recovery of service.

Active triaging is underway with 3rd party network service provider over a dedicated conference call to determine & isolate cause and remedial efforts. This would mean our customers connecting over SIGTRAN links are still unable to submit and receive traffic from us. We are working on priority to recover, restore the service. Thank you for understanding.

Ticket Number :: MNOC-58559 Services:: DI SMS 365(iSMS) Impact :: Mobile Terminating (MT) Traffic: Impacted Mobile Originated (MO) Traffic: Impacted DR: delay in delivery Description :: Dear Customers, We have identified another occurrence of 3rd party network connectivity issue that's preventing incoming and outgoing traffic over iSMS Service. Customers connecting via SS7 and SMPP may observe traffic failures or queue build with delays due to this incident. We are working with our partners to remediate the connectivity issue on priority. We would continue to update through this remediation progress. Thank you for your understanding. Incident Start Date & Time (GMT) : 24th April 2025 22:36 GMT If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

Dear Customers, Our service has returned to normalcy after our 3rd party provider rerouted our traffic via a secondary network connectivity. Active health checks are underway but we can confirm service has recovered in full. Sinch would continue to work with 3rd party network provider to determine cause, preventative measures learning from this incident. We sincerely apologize for the service interruption caused and thank you for your patience with us. This incident has been resolved. Incident Start Date & Time (GMT) : 24th April 2025 18:32 GMT Incident End Date & Time (GMT) : 24th April 2025 21:18 GMT If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

Dear Customers, Our senior network engineers suspect 3rd party last mile network connectivity issues could be causing disruptions preventing our customers from sending incoming traffic to us. We have engaged 3rd party network provider on priority to isolate, remediate and return to normalcy. Our monitoring and health checks internally appears well with no errors / incidents detected internal to Sinch environment. We will update on further improvements. If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

Ticket Number :: MNOC-58553 Services:: DI SMS 365(iSMS) Impact :: Mobile Terminating (MT) Traffic: Impacted Mobile Originated (MO) Traffic: Impacted DR: delay in delivery Description :: Dear Customers, We have identified connectivity issues with our service partners that's preventing incoming and outgoing traffic over iSMS Service. Customers connecting via SS7 and SMPP may observe traffic failures or queue build with delays due to this incident. We are working with our partners to remediate the connectivity issue on priority. We would continue to update through this remediation progress. Thank you for your understanding. Incident Start Date & Time (GMT) : 24th April 2025 18:32 GMT If you have any questions, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect, and then option 1) and reference this notification.

This incident has been resolved. Incident Start Time: 2025-04-24 18:05 UTC Incident End Time: 2025-04-24 20:39 UTC

We are currently observing delivery issues towards Djibouti - Evatis. Incident Start Time: 2025-04-24 18:05 UTC Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

Dear client, We are writing to retroactively inform you that we experienced a temporary service disruption impacting the Sinch Engage (EU) platform. Some internal users and customers may have encountered issues with the shell and menu not loading correctly. The issue was identified as a configuration-related problem affecting the platform’s responsiveness. Our engineering team implemented a fix to restore full functionality. The incident has been resolved, and services are operating normally. Start Time (UTC): 2025-04-23 07:00 UTC End Time (UTC): 2025-04-23 08:55 UTC We apologize for the inconvenience and appreciate your patience while we worked to resolve the issue.

We are writing to inform you that we experienced delivery issues for a subset of Toll Free Numbers towards the United States & Canada. Incident Start Time: 2025-04-21 13:32 UTC Incident End Time: 2025-04-21 17:43 UTC Impact: Undelivered MT's

This incident has been resolved. Incident Start Time: 2025-04-16 14:50 UTC Incident End Time: 2025-04-21 06:00 UTC

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are currently observing delivery issues in Brazil - SurfTelecom. Incident Start Time: 2025-04-16 14:50 UTC Impact is limited to a subset of the traffic. Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.

This incident has been resolved. Incident Start Time: 2025-04-16 16:08 UTC Incident End Time: 2025-04-17 05:10 UTC

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are continuing to investigate this issue.

We are currently observing delivery issues in Brazil - Claro. Incident Start Time: 2025-04-16 16:08 UTC Impact: Delayed MT's, Delayed MO's, Missing delivery receipts, Late delivery receipts. We will update as soon as we have more information.