Sinch Status

Services | Operator Services | Potential delay in delivery of MO, MT and DLR | TT#MNOC-64657

Monitoring - A fix has been implemented and we are monitoring the results.
Jul 06, 2026 - 23:17 UTC

Update - Engineering continues to work on this issue. A secondary queueing period was observed between 21:49-22:22 GMT and has recovered with messages processing normally at this time.
Jul 06, 2026 - 22:43 UTC

Identified - Ticket Number: MNOC-64657
Services: SMSx

Description:
We observed queues related to MO, MT and DLR traffic within our SMSx platform.
Few customers may have observed a potential delay in delivery for MO, MT and DLR traffic on 06 July, 2026 between 19:20 - 20:35 GMT.

Our technical teams are actively working on the root cause and are monitoring for stability. We will continue to provide updates as more information becomes available. We appreciate your patience and understanding.

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) : 06 July, 2026

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.
Jul 06, 2026 - 21:35 UTC

Customer Dashboard - Conversation API - Analytics Degradation

Update - We are continuing to work on a fix for this issue.
Jul 06, 2026 - 21:22 UTC

Update - We are continuing to work on a fix for this issue.
Jul 05, 2026 - 19:27 UTC

Update - We are continuing to work on a fix for this issue.
Jul 04, 2026 - 17:44 UTC

Update - We are continuing to work on a fix for this issue.
Jul 03, 2026 - 13:53 UTC

Update - We are continuing to work on a fix for this issue.
Jul 02, 2026 - 12:46 UTC

Update - We are continuing to work on a fix for this issue.
Jul 01, 2026 - 12:29 UTC

Identified - The issue has been identified and a fix is being implemented.
Jun 30, 2026 - 07:43 UTC

Update - We are continuing to investigate this issue.
Jun 29, 2026 - 13:43 UTC

Update - We are continuing to investigate this issue.
Jun 28, 2026 - 13:32 UTC

Update - We are continuing to investigate this issue.
Jun 27, 2026 - 10:09 UTC

Update - We are continuing to investigate this issue.
Jun 26, 2026 - 09:59 UTC

Update - We are continuing to investigate this issue.
Jun 25, 2026 - 08:44 UTC

Update - We are continuing to investigate this issue.
Jun 24, 2026 - 06:10 UTC

Update - We are continuing to investigate this issue.
Jun 23, 2026 - 05:59 UTC

Update - We are continuing to investigate this issue.
Jun 22, 2026 - 05:11 UTC

Update - We are continuing to investigate this issue.
Jun 21, 2026 - 04:09 UTC

Update - We are continuing to investigate this issue.
Jun 19, 2026 - 23:41 UTC

Update - We are continuing to investigate this issue.
Jun 18, 2026 - 22:19 UTC

Update - We are continuing to investigate this issue.
Jun 17, 2026 - 19:05 UTC

Update - We are continuing to investigate this issue.
Jun 16, 2026 - 18:13 UTC

Update - We are continuing to investigate this issue.
Jun 15, 2026 - 17:14 UTC

Update - We are continuing to investigate this issue.
Jun 14, 2026 - 16:20 UTC

Update - We are continuing to investigate this issue.
Jun 13, 2026 - 16:15 UTC

Update - We are continuing to investigate this issue.
Jun 12, 2026 - 15:35 UTC

Update - We are continuing to investigate this issue.
Jun 11, 2026 - 14:15 UTC

Update - We are continuing to investigate this issue.
Jun 11, 2026 - 05:15 UTC

Update - We are continuing to investigate this issue.
Jun 10, 2026 - 18:18 UTC

Update - We are continuing to investigate this issue.
Jun 10, 2026 - 14:09 UTC

Investigating - We are currently facing a service degradation on dashboard analytics for a subset of Conversation API traffic sent.

Impact: Customers may notice an inaccurate status for a subset of Conversation API messages

For any inquiries, please contact support@sinch.com.
Jun 10, 2026 - 12:56 UTC

External Connectivity Operational

SMS - APAC Operational

SMS - EMEA Operational

SMS - LATAM Operational

SMS - CA - ShortCode Operational

SMS - CA - Toll Free Operational

SMS - US - ShortCode Operational

SMS - US - Toll Free Operational

SMS - US - 10DLC Operational

MMS - US Operational

MMS - US - Toll Free Operational

MMS - US - 10DLC Operational

MMS - AU Operational

MMS - APAC Operational

Voice Operational

Data Calling Operational

Phone Calling (PSTN) Operational

Video Calling Operational

SIP Trunk Operational

Conversation API Operational

Core Operational

WhatsApp Operational

SMS Operational

RCS Operational

MMS Operational

Messenger Operational

Instagram Operational

Viber Bot Operational

Viber Messaging Operational

Telegram Operational

Kakaotalk Operational

Line Operational

WeChat Operational

Apple Messages Operational

Omnichannel Connector Operational

Batch API Operational

Sinch Push Operational

Sinch Chat Operational

Template Management API Operational

Smart Conversations Operational

Verification Operational

Flash Call Verification Operational

SMS Verification Operational

Verification Text to Speech Operational

Messaging APIs Operational

SMPP - US Operational

SMPP - EU Operational

SMPP - AU Operational

SMPP - CA Operational

SMPP - BR Operational

HTTP - US Operational

HTTP - EU Operational

HTTP - AU Operational

HTTP - CA Operational

HTTP - BR Operational

REST - US Operational

REST - EU Operational

REST - AU Operational

REST - CA Operational

REST - BR Operational

MMS - US Operational

MMS - AU Operational

MMS - CA Operational

RCS - US Operational

RCS - EU Operational

SPAN - US Operational

SMS Template Management API - US Operational

US Disconnect File Service - US Operational

🔗 EXTERNAL - Campaign Registry status - US Operational

sFTP2SMS - BR Operational

SMS Template Management API - EU Operational

TFN registration Operational

Provisioning API Operational

Provisioning API Core Operational

WhatsApp Provisioning API Operational

Webhook Provisioning API Operational

Bundles Provisioning API Operational

KakaoTalk Provisioning API Operational

RCS Provisioning API Operational

Sinch DI Services Operational

MM4 (MMS 365) Operational

MM7 (MMS 365) Operational

Message Manager Operational

E-mail 365 Operational

SMS 365 Operator RoW Operational

SMS 365 Operator US Operational

International SMS 365 Operational

Lookup API Endpoints Operational

ENUM AU Operational

HTTP AU Operational

ENUM EU Operational

HTTP EU Operational

ENUM US Operational

HTTP US Operational

ENUM CA Operational

HTTP CA Operational

HTTP BR Operational

Contact Pro Operational

Contact Pro - AF (South Africa) Operational

Contact Pro - AU (Australia) Operational

Contact Pro - EU (Europe) Operational

Contact Pro - NA (North America) Operational

Migrated APIs Operational

Redhot XML (mBlox) Operational

E3 (Dialogue) Operational

SMS (Legacy Sinch) Operational

HTTP API (TWW) Operational

Numbers API Operational

Dashboard.sinch.com Degraded Performance

Payment Operational

SMS Administration Operational

Numbers Administration Operational

Analytics Degraded Performance

Customer Support Operational

2FA Operational

US Campaigns Operational

Campaigns Operational

Campaigns (France 🇫🇷) Operational

Campaigns API (France 🇫🇷) Operational

sFTP Connectors (France 🇫🇷) Operational

Campaigns (Europe 🇪🇺) Operational

Campaigns API (Europe 🇪🇺) Operational

sFTP Connectors (Europe 🇪🇺) Operational

Campaigns (North America 🇺🇸 / 🇨🇦) Operational

Campaigns API (North America 🇺🇸 / 🇨🇦) Operational

sFTP Connectors (North America 🇺🇸 / 🇨🇦) Operational

Elastic SIP Trunking Operational

API Operational

Inbound Calling Operational

Outbound Calling Operational

International Calling Operational

9-1-1 / Emergency Services Operational

User Interface Operational

Fax API Operational

API Operational

Inbound Faxing Operational

Outbound Faxing Operational

Notifications Operational

Fax to Email Operational

User Interface Operational

Sinch Engage Operational

Web Portal Operational

API, SMPP, webhooks, email to SMS Operational

Engage Classic (appengage.sinch.com) Operational

Messaging Connectivity Operational

Legacy Brands (MessageNet, DirectSMS, MobiPost, SMS Central, Wholesale SMS, Streetdata) Operational

Sinch Engage Integrations Operational

Shopify Operational

Hubspot Operational

Netsuite Operational

Zoho CRM Operational

Big Commerce Operational

Salesforce Operational

Active Campaign Operational

Microsoft Dynamics Operational

Number Lookup API v2 Operational

API Operational

Line Type Operational

RND - Reassigned Number Database Operational

Sim Swap Operational

User Interface Operational

Chatlayer Operational

Chatlayer Bot Engine - US Operational

Chatlayer Voice Engine - US Operational

Chatlayer App Integrations - US Operational

Chatlayer Bot Engine - EMEA Operational

Chatlayer Voice Engine - EMEA Operational

Chatlayer App Integrations - EMEA Operational

Chatlayer Bot Engine - South America Operational

Chatlayer Voice Engine - South America Operational

Chatlayer App Integrations - South America Operational

Chatlayer Bot Engine - India Operational

Chatlayer App Integrations - India Operational

Operational

Degraded Performance

Partial Outage

Major Outage

Maintenance

Scheduled Maintenance

Sinch Internal Maintenance - MMS Jul `8`, `2026` `08:00`-`09:30` UTC

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

Type: Maintenance - MMS
Start Time: 2026-07-08 08:00 UTC
End Time: 2026-07-08 09:30 UTC

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

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

Please contact support@sinch.com should you require further information or assistance.
Posted on Jun 22, 2026 - 13:22 UTC

External Maintenance - Toll-Free Number Provider (US and CA) Jul `9`, `2026` `03:00`-`07:00` UTC

We are writing to inform you that our Toll-Free Number Provider (US and CA) will be performing planned maintenance at the times specified below:

Start Time: 2026-07-09 03:00 UTC
End Time: 2026-07-09 07:00 UTC

Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Posted on Jun 02, 2026 - 00:51 UTC

Scheduled Maintenance: 10DLC Brands Management Jul `9`, `2026` `06:00`-`09:00` UTC

We are writing to inform you that as part of our continuous efforts to improve the performance and reliability of our platform, we will be performing a maintenance on our database between 6:00 and 9:00 UTC on July 9th.

Maintenance start time: 2026-07-09 06:00 UTC
Maintenance end time: 2026-07-09 09:00 UTC

Impact: Customers may experience a slight increase in latency for 10DLC brands management and the creation of new brands in the customer dashboard and public API throughout the maintenance window, and a brief downtime of about 10 seconds as the database switches over to the secondary database.

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

Please contact support@sinch.com should you require further information or assistance.
Posted on Jun 22, 2026 - 13:02 UTC

Sinch Scheduled Maintenance - Elastic SIP Trunking - final 603+ deployment Jul `9`, `2026` `12:00`-`14:00` UTC

Sinch Elastic SIP Trunking will be undergoing maintenance to complete the release for "603+". We will also be deploying minor bug fixes for services supporting CNAM lookups, RPID and PAI header support, and 911/933 emergency callback support.

"603+" is a newer SIP response code used in U.S. voice networks to signal that a call was blocked by the network, usually because it was identified as likely illegal, fraudulent, or unwanted traffic. Due to unforeseen circumstances, the full release for "603+" has been postponed several times - we sincerely apologize for the confusion. We anticipate July 9, 2026 to be the final release to support "603+".

The scheduled work is not expected to impact services. This is being sent as a courtesy notice in the event that you experience issues with your service during the maintenance window.

Please contact support@sinch.com for further information.
Posted on Jul 03, 2026 - 16:34 UTC

Sinch Scheduled Maintenance: Verification API Jul `13`, `2026` `08:00`-`12:00` UTC

Dear Customer,

We are writing to inform you that we have scheduled routine maintenance for our Verification service.

Maintenance start time: 2026-07-13 08:00 UTC
Maintenance end time: 2026-07-13 12:00 UTC

Impact: Customers may experience Minor disruptions during the maintenance window.

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

Please contact support@sinch.com should you require further information or assistance.
Posted on Jun 30, 2026 - 13:41 UTC

Sinch Scheduled Maintenance - Elastic SIP Trunking (US) and Voice API (all regions except EU) -rescheduled from June 30 Jul `14`, `2026` `12:00`-`13:00` UTC

Please note the scheduled maintenance originally scheduled for June 30, 2026 has been postponed to July 14, 2026.

--------

Sinch Elastic SIP Trunking will be undergoing maintenance to update SBCs [Session Border Controller] & SIP Registrars that will impact how inbound DID calls are delivered to your equipment over TCP and TLS. The Sinch SBCs will now consistently use source port 5060/5061 when initiating TCP/TLS connections to your PBX or SIP endpoint. Previously, these connections originated from a random source port.

The scheduled work is not expected to impact services. This change improves consistency and predictability in how our signaling traffic reaches your equipment. This is being sent as a courtesy notice in the event that you experience issues with your service during the maintenance window.

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly. Please contact support@sinch.com for further information.
Posted on Jun 30, 2026 - 13:56 UTC

Sinch Scheduled Maintenance - Voice API (EU regions) Jul `14`, `2026` `19:00`-`19:30` UTC

Update - We will be undergoing scheduled maintenance during this time.
Jun 30, 2026 - 13:38 UTC

Scheduled - Please note the scheduled maintenance has been postponed to July 14, 2026.

----
Sinch Voice API- EU Region will be undergoing maintenance to update SBCs [Session Border Controller] & SIP Registrars that will impact how inbound DID calls are delivered to your equipment over TCP and TLS. The Sinch SBCs will now consistently use source port 5060/5061 when initiating TCP/TLS connections to your PBX or SIP endpoint. Previously, these connections originated from a random source port.

The scheduled work is not expected to impact services. This change improves consistency and predictability in how our signaling traffic reaches your equipment. This is being sent as a courtesy notice in the event that you experience issues with your service during the maintenance window.

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly. Please contact support@sinch.com for further information.
Jul 14, 2026 - 19:00 UTC

External Maintenance - Toll-Free Number Provider (US and CA) Jul `16`, `2026` `03:00`-`07:00` UTC

We are writing to inform you that our Toll-Free Number Provider (US and CA) will be performing planned maintenance at the times specified below:

Start Time: 2026-07-16 03:00 UTC
End Time: 2026-07-16 07:00 UTC

Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Posted on Jun 02, 2026 - 00:58 UTC

Planned Maintenance - REST Traffic Database Upgrade Jul `16`, `2026` `09:00`-`10:00` UTC

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 Traffic Database Upgrade

Start Time: 2026-07-16 09:00 UTC
End Time: 2026-07-16 10:00 UTC

Impact: REST Traffic – EU. During the maintenance window, clients making GET requests may experience intermittent service interruptions, increased response times, or temporary request failures due to the database upgrade activities.

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

Please contact support@sinch.com should you require further information or assistance.
Posted on Jun 15, 2026 - 15:35 UTC

Campaigns Server Maintenance Jul `20`, `2026` `20:00`-`21:00` UTC

Update - We will be undergoing scheduled maintenance during this time.
Jun 18, 2026 - 10:03 UTC

Scheduled - We will be performing a server maintenance.
This will impact our APIs and our sFTP Connector products in France.
A limited downtime is expected.
Jun 18, 2026 - 10:01 UTC

Sinch Scheduled Maintenance - MMS - United States - AT&T Jul `21`, `2026` `04:00`-`06:00` UTC

Dear Client,

To improve the performance and reliability of our MMS platform, Sinch has scheduled maintenance affecting AT&T MMS connectivity. Please find the maintenance details below.

Maintenance Start time: 2026-07-21 04:00 UTC
Maintenance End time: 2026-07-21 06:00 UTC

Impact: During the maintenance window, customers may experience a loss of MMS delivery receipts. In addition, MMS MT traffic destined for AT&T devices may be delayed or fail.

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

Please contact support@sinch.com should you require further information or assistance.
Posted on Jul 02, 2026 - 18:32 UTC

External Maintenance - Toll-Free Number Provider (US and CA) Jul `23`, `2026` `03:00`-`07:00` UTC

We are writing to inform you that our Toll-Free Number Provider (US and CA) will be performing planned maintenance at the times specified below:

Start Time: 2026-07-23 03:00 UTC
End Time: 2026-07-23 07:00 UTC

Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Posted on Jun 02, 2026 - 01:30 UTC

External Maintenance - Toll-Free Number Provider (US and CA) Jul `30`, `2026` `03:00`-`07:00` UTC

We are writing to inform you that our Toll-Free Number Provider (US and CA) will be performing planned maintenance at the times specified below:

Start Time: 2026-07-30 03:00 UTC
End Time: 2026-07-30 07:00 UTC

Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Posted on Jun 02, 2026 - 01:49 UTC

Past Incidents

Jul 7, 2026

Scheduled Maintenance: Number Import And Text Enablement

Completed - The scheduled maintenance has been completed.
Jul 7, 09:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 7, 06:00 UTC

Scheduled - 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 on our database between 6:00 and 9:00 UTC on July 7th.

Maintenance start time: 2026-07-07 06:00 UTC
Maintenance end time: 2026-07-07 09:00 UTC

Impact: Customers may experience a slight increase in latency for number import and text enablement flows in the customer dashboard and public API throughout the maintenance window, and a brief downtime of about 10 seconds as the database switches over to the secondary database.

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.
Jun 16, 12:03 UTC

Delivery Issue Germany - 1&1

Resolved - This incident has been resolved.

Incident Start Time: 2026-07-06 22:02 UTC
Incident End Time: 2026-07-06 23:44 UTC
Jul 7, 00:08 UTC

Investigating - We are currently observing delivery issues in Germany - 1&1

Incident Start Time: 2026-07-06 22:02 UTC

Impact: Failed/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.
Jul 6, 22:47 UTC

Jul 6, 2026

V-SMS performance degradation for United Arab Emirates

Resolved - This incident has been resolved.

Incident Start Time: 2026-07-02 09:02 UTC
Incident End Time: 2026-07-06 15:27 UTC
Jul 6, 20:19 UTC

Investigating - We are currently observing performance degradation for our V-SMS service towards the United Arab Emirates.
The matter is currently being investigated with our supplier.

Impact: Clients may experience failed or delayed V-SMS traffic to the United Arab Emirates.
Clients may experience issues logging in to dashboard.sinch.com from the United Arab Emirates.

We appreciate your patience while this is being investigated.

If you have any questions or concerns please do not hesitate to reach out to support@sinch.com
Jul 6, 15:11 UTC

Delivery Issue Netherlands - Odido

Resolved - This incident has been resolved.

Incident Start Time: 2026-07-01 10:20 UTC
Incident End Time: 2026-07-06 05:17 UTC
Jul 6, 11:25 UTC

Update - We are continuing to investigate this issue.
Jul 6, 08:16 UTC

Update - We are continuing to investigate this issue.
Jul 5, 07:22 UTC

Update - We are continuing to investigate this issue.
Jul 4, 06:43 UTC

Update - We are continuing to investigate this issue.
Jul 3, 05:29 UTC

Update - We are continuing to investigate this issue.
Jul 2, 20:19 UTC

Update - We are continuing to investigate this issue.
Jul 2, 16:07 UTC

Update - We are continuing to investigate this issue.
Jul 2, 16:06 UTC

Investigating - We are currently observing MO delivery issues in Netherlands - Odido due to SMSC issues on the operator's end.

Incident Start Time: 2026-07-01 10:20 UTC

Impact: Delayed/Missing MO's.

We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
Jul 2, 14:48 UTC

Jul 5, 2026

Jul 4, 2026

Delivery Issue United Kingdom - Lycamobile

Resolved - This incident has been resolved.

Incident Start Time: 2026-07-04 11:55 UTC
Incident End Time: 2026-07-04 14:31 UTC
Jul 4, 14:53 UTC

Investigating - We are currently observing delivery issues in United Kingdom - Lycamobile.

Incident Start Time: 2026-07-04 11:55 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.
Jul 4, 12:35 UTC

Delivery Issue United Kingdom - Lycamobile

Resolved - This incident has been resolved.

Incident Start Time: 2026-07-03 20:56 UTC
Incident End Time: 2026-07-04 06:16 UTC
Jul 4, 08:19 UTC

Update - We are continuing to investigate this issue.
Jul 4, 03:25 UTC

Update - We are continuing to investigate this issue.
Jul 4, 01:13 UTC

Investigating - We are currently observing delivery issues in United Kingdom - Lycamobile

Incident Start Time: 2026-07-03 20:56 UTC

Impact: Failed/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.
Jul 3, 23:22 UTC

Jul 3, 2026

Delivery Issue Mayotte - Orange Mayotte

Resolved - This incident has been resolved.

Incident Start Time: 2026-07-03 06:56 UTC
Incident End Time: 2026-07-03 12:22 UTC
Jul 3, 12:45 UTC

Update - We are continuing to investigate this issue.
Jul 3, 09:11 UTC

Investigating - We are currently observing delivery issues in Mayotte - Orange Mayotte.

Incident Start Time: 2026-07-03 06:56 UTC

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

We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
Jul 3, 07:18 UTC

Delivery Issue Reunion - Orange Reunion

Resolved - This incident has been resolved

Incident Start Time: 2026-07-03 06:56 UTC
Incident End Time: 2026-07-03 12:22 UTC
Jul 3, 12:42 UTC

Update - We are continuing to investigate this issue.
Jul 3, 09:11 UTC

Investigating - We are currently observing delivery issues in Reunion - Orange Reunion.

Incident Start Time: 2026-07-03 06:56 UTC

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

We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
Jul 3, 07:22 UTC

Delivery Issue France - Orange

Resolved - This incident has been resolved

Incident Start Time: 2026-07-03 01:51 UTC
Incident End Time: 2026-07-03 09:49 UTC
Jul 3, 12:11 UTC

Update - We are continuing to investigate this issue.
Jul 3, 07:07 UTC

Update - We are continuing to investigate this issue.
Jul 3, 04:14 UTC

Investigating - We are currently observing delivery issues in France - Orange.

Incident Start Time: 2026-07-03 01:51 UTC

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

We will update as soon as we have more information.
Jul 3, 02:34 UTC

Delivery Issue United Kingdom - Lycamobile

Resolved - This incident has been resolved.

Incident Start Time: 2026-07-03 01:08 UTC
Incident End Time: 2026-07-03 02:15 UTC
Jul 3, 02:55 UTC

Investigating - We are currently observing delivery issues in United Kingdom - Lycamobile.

Incident Start Time: 2026-07-03 01:08 UTC

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

We will update as soon as we have more information.
Jul 3, 01:44 UTC

Jul 2, 2026

Delivery Issue Dominican Republic - Altice

Resolved - This incident has been resolved.

Incident Start Time: 2026-07-02 05:37 UTC
Incident End Time: 2026-07-02 18:53 UTC
Jul 2, 19:54 UTC

Update - We are continuing to investigate this issue.
Jul 2, 17:06 UTC

Update - We are continuing to investigate this issue.
Jul 2, 12:46 UTC

Update - We are continuing to investigate this issue.
Jul 2, 10:09 UTC

Investigating - We are currently observing delivery issues in Dominican Republic - Altice.

Incident Start Time: 2026-07-02 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.
If you have any questions, please contact support@sinch.com.
Jul 2, 08:13 UTC

Campaigns Application Maintenance

Completed - The scheduled maintenance has been completed.
Jul 2, 10:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 2, 09:01 UTC

Scheduled - Campaigns Application Maintenance
Jul 2, 08:33 UTC

Scheduled Maintenance: General Numbers Management & Purchase

Completed - The scheduled maintenance has been completed.
Jul 2, 09:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 2, 06:00 UTC

Scheduled - 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 on our database between 6:00 and 9:00 UTC on July 2nd.

Maintenance start time: 2026-07-02 06:00 UTC
Maintenance end time: 2026-07-02 09:00 UTC

Impact: Customers may experience a slight increase in latency for general numbers management and number purchase functionality in the dashboard and public API throughout the maintenance window, and a brief downtime of about 10 seconds as the database switches over to the secondary database.

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.
Jun 16, 11:48 UTC

External Maintenance - Toll-Free Number Provider (US and CA)

Completed - The scheduled maintenance has been completed.
Jul 2, 07:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 2, 03:00 UTC

Scheduled - We are writing to inform you that our Toll-Free Number Provider (US and CA) will be performing planned maintenance at the times specified below:

Start Time: 2026-07-02 03:00 UTC
End Time: 2026-07-02 07:00 UTC

Impact SMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States and Canada.
Impact MMS: Clients may experience delayed or failed Toll Free MT/MO traffic towards the United States.
Jun 2, 00:42 UTC

Delivery Issue Denmark - Nuuday

Resolved - This incident has been resolved.

Incident Start Time: 2026-07-01 20:29 UTC
Incident End Time: 2026-07-02 02:37 UTC
Jul 2, 04:03 UTC

Investigating - We are currently observing delivery issues in Denmark - Nuuday.

Incident Start Time: 2026-07-01 20:29 UTC
Impact: Failed/Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts

We will update as soon as we have more information.
Jul 2, 01:14 UTC

Jul 1, 2026

Sinch Scheduled Maintenance - Elastic SIP Trunking - July release

Completed - The scheduled maintenance has been completed.
Jul 1, 13:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 1, 12:00 UTC

Update - Please note that the maintenance window will proceed as planned to include additional features and functionality; however, support for 603+ will be rescheduled to a future date.
Jun 30, 22:03 UTC

Update - We will be undergoing scheduled maintenance during this time.
Jun 30, 21:58 UTC

Scheduled - Please note that the maintenance window will proceed as planned to include additional features and functionality; however, support for 603+ will be rescheduled to a future date.

---------

Sinch Elastic SIP Trunking will be redeploying a software update to add additional features and functionality.

The scheduled work is not expected to impact services. This is being sent as a courtesy notice in the event that you experience issues with your service during the maintenance window.

For information about our product enhancements, we encourage you subscribe to our Elastic SIP Trunking Release Notes posted in the Sinch Community at: https://community.sinch.com/
Jun 24, 00:24 UTC

Auth database maintenance

Completed - The scheduled maintenance has been completed.
Jul 1, 08:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 1, 06:00 UTC

Scheduled - 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 on our auth database.

Maintenance Start Time: 06:00 UTC
Maintenance End Time: 08:00 UTC

Impact: Customers may experience a slight increase in latency when generating the auth tokens via auth.sinch.com functionality throughout the maintenance window and a brief downtime of about 10 seconds as the database is upgraded.

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.
Jun 12, 08:15 UTC

Jun 30, 2026

AU Market Service Reminder

Completed - The scheduled maintenance has been completed.
Jun 30, 15:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 30, 14:00 UTC

Scheduled - This is a reminder that sender ID validation for alphanumeric senders will be enabled in the AU market on 30th of June.

Enablement will take place between June 30th, 2026, 14:00 UTC and June 30th, 2026, 15:00 UTC.
Jun 29, 18:28 UTC

Delivery Issue Reunion - Orange

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-26 21:48 UTC
Incident End Time: 2026-06-30 13:05 UTC
Jun 30, 14:32 UTC

Update - We are continuing to investigate this issue.
Jun 30, 00:31 UTC

Update - We are continuing to investigate this issue.
Jun 28, 23:10 UTC

Update - We are continuing to investigate this issue.
Jun 27, 22:58 UTC

Update - We are continuing to investigate this issue.
Jun 27, 14:16 UTC

Update - We are continuing to investigate this issue.
Jun 27, 09:02 UTC

Update - We are continuing to investigate this issue.
Jun 27, 06:06 UTC

Investigating - We are currently observing delivery issues in Reunion - Orange

Incident Start Time: 2026-06-26 21:48 UTC

Impact: Failed MT's/Failed MO's/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.
Jun 27, 04:41 UTC

Delivery Issue Mayotte - Orange Mayotte

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-26 21:56 UTC
Incident End Time: 2026-06-30 13:05 UTC
Jun 30, 14:31 UTC

Update - We are continuing to investigate this issue.
Jun 30, 13:29 UTC

Update - We are continuing to investigate this issue.
Jun 29, 11:57 UTC

Update - We are continuing to investigate this issue.
Jun 28, 10:01 UTC

Update - We are continuing to investigate this issue.
Jun 28, 01:24 UTC

Update - We are continuing to investigate this issue.
Jun 27, 19:36 UTC

Update - We are continuing to investigate this issue.
Jun 27, 16:33 UTC

Investigating - We are currently observing delivery issues in Orange Mayotte - Mayotte

Incident Start Time: 2026-06-26 21:56 UTC

Impact: Failed MT's/Failed MO's/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.
Jun 27, 14:52 UTC

Sinch Maintenance - Elastic SIP Trunking - Revert Change for 603+ support

Completed - The scheduled maintenance has been completed.
Jun 30, 13:43 UTC

Scheduled - Sinch Elastic SIP Trunking performed an emergency maintenance at 13:00 UTC June 18, 2026. This update has been reverted due to unforeseen circumstances. Support for 603+ will be rescheduled for a future date.

This change is to add support of "603+" which a newer SIP response code used in U.S. voice networks to signal that a call was blocked by the network, usually because it was identified as likely illegal, fraudulent, or unwanted traffic.

For information about our product enhancements, we encourage you subscribe to our Elastic SIP Trunking Release Notes posted in the Sinch Community at: https://community.sinch.com/
Jun 18, 23:04 UTC

Sinch Scheduled Maintenance - Elastic SIP Trunking (US) and Voice API (all regions except EU)

Postmortem - Read details
Jun 30, 14:07 UTC

Completed - Please note the scheduled maintenance has been postponed to July 14, 2026.
Jun 30, 13:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 30, 12:00 UTC

Scheduled - Sinch Elastic SIP Trunking will be undergoing maintenance to update SBCs [Session Border Controller] & SIP Registrars that will impact how inbound DID calls are delivered to your equipment over TCP and TLS. The Sinch SBCs will now consistently use source port 5060/5061 when initiating TCP/TLS connections to your PBX or SIP endpoint. Previously, these connections originated from a random source port.

The scheduled work is not expected to impact services. This change improves consistency and predictability in how our signaling traffic reaches your equipment. This is being sent as a courtesy notice in the event that you experience issues with your service during the maintenance window.

We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly. Please contact support@sinch.com for further information.
Jun 24, 00:32 UTC

External Maintenance - T-Mobile United States

Completed - The scheduled maintenance has been completed.
Jun 30, 11:01 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 30, 03:00 UTC

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

Maintenance start time: 2026-06-30 03:00 UTC
Maintenance end time: 2026-06-30 11:00 UTC
Jun 25, 19:46 UTC

Sinch Scheduled Maintenance - US1 VPN Device

Completed - The scheduled maintenance has been completed.
Jun 30, 11:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 30, 08:00 UTC

Scheduled - Dear Client,

We will be performing a scheduled Network maintenance, which may result in intermittent delays or failures for various countries.

Type: Network Maintenance

Affected Site: US1 Network Hub

Impact:
Clients may experience intermittent delayed/failed MT and MO traffic to and from the following countries:
Bolivia
Brazil
Canada
Chile
Costa Rica
Guatemala
Paraguay
Peru
Puerto Rico
United States
Uruguay

Maintenance start time: 2026-06-30 08:00 UTC
Maintenance end time: 2026-06-30 11:00 UTC

In the event that the maintenance period requires extension or cancellation, we will advise you accordingly.

Should you have any questions or concerns, kindly contact us at support@sinch.com.

We sincerely apologize for any inconveniences this may cause.
Jun 15, 12:08 UTC

Campaigns Application Maintenance

Completed - The scheduled maintenance has been completed.
Jun 30, 10:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 30, 09:00 UTC

Scheduled - Statistics in UI V0 + internal migrations
Jun 30, 08:37 UTC

Delivery Issue United Kingdom - Lycamobile

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-29 09:59 UTC
Incident End Time: 2026-06-30 04:35 UTC
Jun 30, 07:17 UTC

Update - We are continuing to investigate this issue.
Jun 29, 20:13 UTC

Update - We are continuing to investigate this issue.
Jun 29, 14:51 UTC

Update - We are continuing to investigate this issue.
Jun 29, 12:17 UTC

Investigating - We are currently observing delivery issues in United Kingdom - Lycamobile

Incident Start Time: 2026-06-29 09:59 UTC

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

We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
Jun 29, 10:24 UTC

Delivery Issue Mexico - AT&T Mexico

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-29 22:53 UTC
Incident End Time: 2026-06-30 00:40 UTC
Jun 30, 00:50 UTC

Investigating - We are currently observing delivery issues towards Mexico - AT&T Mexico.

Incident Start Time: 2026-06-29 22:53 UTC

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

We will update as soon as we have more information.
Jun 29, 23:14 UTC

Jun 29, 2026

Delivery Issue Paraguay - Tigo

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-29 18:08 UTC
Incident End Time: 2026-06-29 20:21 UTC
Jun 29, 20:47 UTC

Investigating - We are currently observing delivery issues in Paraguay - Tigo

Incident Start Time: 2026-06-29 18:08 UTC

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

We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
Jun 29, 19:31 UTC

Delivery Issue United Kingdom - Vodafone

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-29 10:56 UTC
Incident End Time: 2026-06-29 13:29 UTC
Jun 29, 13:36 UTC

Update - We are continuing to investigate this issue.
Jun 29, 12:58 UTC

Investigating - We are currently observing delivery issues in United Kingdom - Vodafone

Incident Start Time: 2026-06-29 10:56 UTC

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

We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
Jun 29, 11:08 UTC

External Maintenance - T-Mobile United States

Completed - The scheduled maintenance has been completed.
Jun 29, 11:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 29, 03:00 UTC

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

Maintenance start time: 2026-06-29 03:00 UTC
Maintenance end time: 2026-06-29 11:00 UTC
Jun 25, 19:31 UTC

Delivery Issue United Kingdom - Lycamobile

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-28 15:00 UTC
Incident End Time: 2026-06-29 08:28 UTC
Jun 29, 10:01 UTC

Update - We are continuing to investigate this issue.
Jun 29, 01:18 UTC

Update - We are continuing to investigate this issue.
Jun 28, 20:01 UTC

Update - We are continuing to investigate this issue.
Jun 28, 17:04 UTC

Investigating - We are currently observing delivery issues in United Kingdom - Lycamobile.

Incident Start Time: 2026-06-28 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.
If you have any questions, please contact support@sinch.com.
Jun 28, 15:47 UTC

Sinch Internal Maintenance - MMS

Completed - The scheduled maintenance has been completed.
Jun 29, 09:30 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 29, 08:00 UTC

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

Type: Maintenance - MMS
Start Time: 2026-06-29 08:00 UTC
End Time: 2026-06-29 09:30 UTC

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

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

Please contact support@sinch.com should you require further information or assistance.
Jun 11, 14:58 UTC

Sinch Engage Classic – WhatsApp Messaging Disruption

Resolved - The disruption affecting WhatsApp messaging has been fully resolved, and all services are operating normally. We have confirmed that both incoming and outgoing messages are processing successfully. Thank you again for your patience and understanding.
Jun 29, 09:28 UTC

Monitoring - The issue affecting WhatsApp messaging has been resolved, and we are seeing traffic return to normal. We are currently monitoring the system closely to ensure everything remains stable. Thank you for your patience while we worked through this.
Jun 29, 09:13 UTC

Identified - We have identified the cause of the disruption affecting WhatsApp messaging. Our team is actively working on the resolution in coordination with our external partner to restore full functionality. We are monitoring the progress closely and will provide another update as soon as the service is back to normal.
Jun 29, 08:26 UTC

Investigating - We are currently looking into a disruption affecting WhatsApp messaging within Sinch Engage Classic. At the moment, both incoming and outgoing messages may not be processed as expected for some customers. Our team is actively working to resolve the issue, and we will share updates here as soon as we have more information.
Jun 29, 07:44 UTC

Jun 28, 2026

Jun 27, 2026

Jun 26, 2026

Customer Dashboard - Conversation API

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-24 21:39 UTC
Incident End Time: 2026-06-26 15:18 UTC
Jun 26, 17:20 UTC

Identified - The issue has been identified and a fix is being implemented.
Jun 26, 15:02 UTC

Investigating - We are currently facing a degradation on our customer dashboard affecting Conversation API users.
Users may experience issues with their apps after resetting channel credentials.

Our engineers are currently working on resolving the issue.
Jun 26, 11:58 UTC

Delivery Issue Malaysia - TuneTalk

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-26 03:05 UTC
Incident End Time: 2026-06-26 09:27 UTC
Jun 26, 11:17 UTC

Update - We are continuing to investigate this issue.
Jun 26, 08:53 UTC

Update - We are continuing to investigate this issue.
Jun 26, 06:02 UTC

Investigating - We are currently observing delivery issues towards TuneTalk Malaysia.

Incident Start Time: 2026-06-26 03:05 UTC

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

We will update as soon as we have more information.
Jun 26, 04:49 UTC

Service Degredation - XMS - US

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-25 15:58 UTC
Incident End Time: 2026-06-26 01:34 UTC
Jun 26, 06:33 UTC

Update - We are continuing to monitor for any further issues.
Jun 26, 04:22 UTC

Monitoring - A fix has been implemented and we are monitoring the results.
Jun 26, 00:39 UTC

Update - We are continuing to investigate this issue.
Jun 25, 23:23 UTC

Investigating - Dear Client,

We are currently experiencing a service degradation affecting XMS in the US.

Incident Start Time: 2026-06-25 15:58 UTC

Impact: Clients may experience delayed or failed message deliveries, missing delivery receipts, or intermittent API errors.

We sincerely apologize for the inconvenience and appreciate your patience while we resolve this matter. For further information or assistance, please contact us at support@sinch.com.
Jun 25, 21:29 UTC

Delivery Issue Italy - Wind

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-25 22:02 UTC
Incident End Time: 2026-06-26 01:15 UTC
Jun 26, 05:30 UTC

Update - We are continuing to investigate this issue.
Jun 26, 02:01 UTC

Investigating - We are currently observing delivery issues in Italy - Wind

Incident Start Time: 2026-06-25 22:02 UTC

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

We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
Jun 25, 23:02 UTC

Delivery Issue United States - AT&T - MMS

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-25 14:00 UTC
Incident End Time: 2026-06-26 00:45 UTC
Jun 26, 00:47 UTC

Update - We are continuing to investigate this issue.
Jun 26, 00:12 UTC

Investigating - We are currently observing delivery issues in United States - AT&T.

Incident Start Time: 2026-06-25 14:00 UTC

Impact: Customers may experience issues such as delayed MMS delivery.

We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
Jun 25, 22:39 UTC

Jun 25, 2026

*.httpsms.api.sinch.com SSL Cert Update

Completed - The scheduled maintenance has been completed.
Jun 25, 12:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 25, 09:00 UTC

Scheduled - Sinch will be performing a scheduled maintenance to renew the SSL certificate for the Certificate's *.httpsms.api.sinch.com

Type: Scheduled Maintenance
Maintenance: SSL Certificate Updates

Start Time: 2026-06-25 09:00 UTC
End Time: 2026-06-25 12:00 UTC

Impact: *.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.

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

Download the certificate files for all the above mentioned certificates here:
https://clxgroup.sharepoint.com/:f:/s/CLX_Support_Anonymous_link/IgARQNOe71YvSqZOHW8E9acrAeEalpuaa53FpCiInYU5b5g
Jun 10, 11:15 UTC

Planned Maintenance - XMS Traffic Database Upgrade

Completed - The scheduled maintenance has been completed.
Jun 25, 10:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 25, 09:01 UTC

Update - Dear Client,

We are writing to inform you that the concerned maintenance activity will not affect the REST API in the EU region.

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.
Jun 15, 15:28 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 XMS Traffic platform at the times specified below.

Type: Maintenance – XMS Traffic Database Upgrade (MySQL 8.0 → 8.4)

Start Time: 2026-06-25 09:00 UTC
End Time: 2026-06-25 10:00 UTC

Impact: XMS Traffic – US, BR, CA, AU and EU. During the maintenance window, clients making GET requests may experience intermittent service interruptions, increased response times, or temporary request failures due to the database upgrade activities.

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.
Jun 11, 15:32 UTC

Jun 24, 2026

Campaigns Application Maintenance

Completed - The scheduled maintenance has been completed.
Jun 24, 14:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 24, 13:00 UTC

Scheduled - Internal API migration
Jun 24, 11:21 UTC

DI SMS 365 (SMSX) | Operator Services | Application, Database and System Maintenance || PCR Number #PCRSDI-12251

Completed - The scheduled maintenance has been completed.
Jun 24, 13:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 24, 07:00 UTC

Scheduled - Services :: DI SMS 365 (SMSX)
PCR Number :: PCRSDI-12251

Start Date and Time (GMT):: June 24th, 2026, 07:00 Hrs.
End Date and Time (GMT):: June 24th, 2026, 13:00 Hrs.

Impact
Mobile Terminating (MT) Traffic : No Impact
Mobile Originated (MO) Traffic : No Impact
DR Notification : No Impact
Report Manager Access : Impacted.
Report Manager Statistics : Impacted.

Description:
Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal application and systems.
Report Manager may experience several slowdowns up to 1 minute and delayed up to 1 minute data in reports.

If you experience any issues during this maintenance , please contact the Operator Service NOC immediately at 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.
Jun 9, 19:13 UTC

External Maintenance - United States - Verizon Wireless

Completed - The scheduled maintenance has been completed.
Jun 24, 12:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 24, 04:00 UTC

Scheduled - Dear Client,

Verizon Wireless and Sinch have a scheduled maintenance that is expected to last several hours. During this window clients may experience failed MMS or SMS MTs towards Verizon Wireless US.

Impact SMS & MMS:

Clients may experience delayed or failed Short Code MT/MO traffic towards Verizon Wireless US

Maintenance Start time: 2026-06-24 04:00 UTC
Maintenance End time: 2026-06-24 12:00 UTC
Jun 11, 17:11 UTC

Site US5 - Network Disturbance

Resolved - This incident has been resolved.

Start Time: 2026-06-23 08:03 UTC
End Time: 2026-06-23 08:50 UTC
Jun 24, 10:31 UTC

Update - We are continuing to monitor for any further issues.
Jun 24, 04:38 UTC

Update - We are continuing to monitor for any further issues.
Jun 23, 19:23 UTC

Update - We are continuing to monitor for any further issues.
Jun 23, 12:16 UTC

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

Start Time: 2026-06-23 08:03 UTC
Restoration Time: 2026-06-23 08:50 UTC
Jun 23, 08:55 UTC

Investigating - We are currently experiencing a network disturbance on our US5 site, our engineers are currently investigating.

Impact: Clients may experience delayed or failed MT/MO traffic for the following countries:
Mexico
Chile
Bolivia
Paraguay
Colombia
Argentine

The same may be experienced towards minor networks in the USA.

We will provide updates on this page. For any inquiries, please contact us at support@sinch.com.
Jun 23, 08:39 UTC

Jun 23, 2026

Delivery Issue Norway - Ported Numbers

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-23 06:43 UTC
Incident End Time: 2026-06-23 16:54 UTC
Jun 23, 19:49 UTC

Monitoring - A fix has been implemented and we are monitoring the results.
Jun 23, 15:31 UTC

Investigating - We are currently observing delivery issues towards ported numbers in Norway.

Impact: Failed MT's towards ported numbers

We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
Jun 23, 14:46 UTC

Sinch Contact Pro - Test tenant upgrade

Completed - The scheduled maintenance has been completed.
Jun 23, 14:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 23, 05:00 UTC

Scheduled - Dear Customer

This notification is related to Contact Pro test tenant maintenance.
If you currently do not have a test tenant, please ignore this message.

We will be upgrading all customer test tenants to the newest release 26Q3 on Tuesday 23rd of June.
During the day, there will be approximately 30 minutes service break for your test tenant.
Tenants will be ready for your testing on Wednesday 24th of June at 07:00 UTC.

Production tenants will be upgraded on August 15-16th.

What´s new documentation regarding the upcoming 26Q3 release is available on Thursday 18th of June in:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html

For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181

Best Regards,
Sinch Contact Pro team
Jun 17, 09:27 UTC

Delivery Issue Israel - CG Networks

Resolved - This incident has been resolved.

Incident Start Time: 2026-06-23 05:53 UTC
Incident End Time: 2026-06-23 09:47 UTC
Jun 23, 10:24 UTC

Update - We are continuing to investigate this issue.
Jun 23, 08:10 UTC

Investigating - We are currently observing delivery issues in Israel - CG Networks

Incident Start Time: 2026-06-23 05:53 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.
Jun 23, 06:33 UTC

External Maintenance - T-Mobile United States

Completed - The scheduled maintenance has been completed.
Jun 23, 05:01 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jun 23, 03:00 UTC

Scheduled - 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 US

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

Maintenance start time: 2026-06-23 03:00 UTC
Maintenance end time: 2026-06-23 05:00 UTC
Jun 20, 08:20 UTC

Scheduled Maintenance

Sinch Internal Maintenance - MMS Jul 8, 2026 08:00-09:30 UTC

External Maintenance - Toll-Free Number Provider (US and CA) Jul 9, 2026 03:00-07:00 UTC

Scheduled Maintenance: 10DLC Brands Management Jul 9, 2026 06:00-09:00 UTC

Sinch Scheduled Maintenance - Elastic SIP Trunking - final 603+ deployment Jul 9, 2026 12:00-14:00 UTC

Sinch Scheduled Maintenance: Verification API Jul 13, 2026 08:00-12:00 UTC

Sinch Scheduled Maintenance - Elastic SIP Trunking (US) and Voice API (all regions except EU) -rescheduled from June 30 Jul 14, 2026 12:00-13:00 UTC

Sinch Scheduled Maintenance - Voice API (EU regions) Jul 14, 2026 19:00-19:30 UTC

External Maintenance - Toll-Free Number Provider (US and CA) Jul 16, 2026 03:00-07:00 UTC

Planned Maintenance - REST Traffic Database Upgrade Jul 16, 2026 09:00-10:00 UTC

Campaigns Server Maintenance Jul 20, 2026 20:00-21:00 UTC

Sinch Scheduled Maintenance - MMS - United States - AT&T Jul 21, 2026 04:00-06:00 UTC

External Maintenance - Toll-Free Number Provider (US and CA) Jul 23, 2026 03:00-07:00 UTC

External Maintenance - Toll-Free Number Provider (US and CA) Jul 30, 2026 03:00-07:00 UTC

Past Incidents

Sinch Internal Maintenance - MMS Jul `8`, `2026` `08:00`-`09:30` UTC

External Maintenance - Toll-Free Number Provider (US and CA) Jul `9`, `2026` `03:00`-`07:00` UTC

Scheduled Maintenance: 10DLC Brands Management Jul `9`, `2026` `06:00`-`09:00` UTC

Sinch Scheduled Maintenance - Elastic SIP Trunking - final 603+ deployment Jul `9`, `2026` `12:00`-`14:00` UTC

Sinch Scheduled Maintenance: Verification API Jul `13`, `2026` `08:00`-`12:00` UTC

Sinch Scheduled Maintenance - Elastic SIP Trunking (US) and Voice API (all regions except EU) -rescheduled from June 30 Jul `14`, `2026` `12:00`-`13:00` UTC

Sinch Scheduled Maintenance - Voice API (EU regions) Jul `14`, `2026` `19:00`-`19:30` UTC

External Maintenance - Toll-Free Number Provider (US and CA) Jul `16`, `2026` `03:00`-`07:00` UTC

Planned Maintenance - REST Traffic Database Upgrade Jul `16`, `2026` `09:00`-`10:00` UTC

Campaigns Server Maintenance Jul `20`, `2026` `20:00`-`21:00` UTC

Sinch Scheduled Maintenance - MMS - United States - AT&T Jul `21`, `2026` `04:00`-`06:00` UTC

External Maintenance - Toll-Free Number Provider (US and CA) Jul `23`, `2026` `03:00`-`07:00` UTC

External Maintenance - Toll-Free Number Provider (US and CA) Jul `30`, `2026` `03:00`-`07:00` UTC