All Systems Operational
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
Operational
Payment
Operational
SMS Administration
Operational
Numbers Administration
Operational
Analytics
Operational
Customer Support
Operational
2FA
Operational
US Campaigns
Operational
Login/Sign up
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 Contact Pro Quarterly Maintenance - AU Aug 15, 2026 10:00 - Aug 16, 2026 16:00 UTC
Dear Customer,
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-8-15 (Saturday) 10 AM UTC
End time: 2026-8-16 (Sunday) 4 PM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenace window.
What´s new documentation regarding the upcoming 26Q3 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Aug 04, 2026 - 08:38 UTC
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-8-15 (Saturday) 10 AM UTC
End time: 2026-8-16 (Sunday) 4 PM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenace window.
What´s new documentation regarding the upcoming 26Q3 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Aug 04, 2026 - 08:38 UTC
Sinch Contact Pro Quarterly Maintenance - EU Aug 15, 2026 16:00 - Aug 16, 2026 22:00 UTC
Dear Customer,
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-8-15 (Saturday) 4 PM UTC
End time: 2026-8-16 (Sunday) 10 PM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenace window.
What´s new documentation regarding the upcoming 26Q3 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Aug 04, 2026 - 08:38 UTC
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-8-15 (Saturday) 4 PM UTC
End time: 2026-8-16 (Sunday) 10 PM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenace window.
What´s new documentation regarding the upcoming 26Q3 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Aug 04, 2026 - 08:38 UTC
Sinch Contact Pro Quarterly Maintenance - AF Aug 15, 2026 16:00 - Aug 16, 2026 22:00 UTC
Dear Customer,
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-8-15 (Saturday) 4 PM UTC
End time: 2026-8-16 (Sunday) 10 PM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenace window.
What´s new documentation regarding the upcoming 26Q3 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Aug 04, 2026 - 08:37 UTC
We will be performing Contact Pro version upgrade as follows.
Start time: 2026-8-15 (Saturday) 4 PM UTC
End time: 2026-8-16 (Sunday) 10 PM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenace window.
What´s new documentation regarding the upcoming 26Q3 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Aug 04, 2026 - 08:37 UTC
Scheduled Maintenance - Message Manager Aug 15, 2026 18:00-22:00 UTC
We are reaching out to inform you that Sinch has a scheduled maintenance on Message Manager.
Customers are advised not to schedule any campaigns during this maintenance window.
Maintenance Start Time: 2026-08-15 18:00 UTC
Maintenance End Time: 2026-08-15 22:00 UTC
Impact: The Message Manager UI will be unavailable during the application upgrade.
If you experience any issues during this maintenance window, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470-300-8394 (select "Support" from the menu, option 2 for Digital Interconnect, then option 1).
Please reference this maintenance notification when contacting support.
Posted on Jul 30, 2026 - 20:47 UTC
Customers are advised not to schedule any campaigns during this maintenance window.
Maintenance Start Time: 2026-08-15 18:00 UTC
Maintenance End Time: 2026-08-15 22:00 UTC
Impact: The Message Manager UI will be unavailable during the application upgrade.
If you experience any issues during this maintenance window, please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470-300-8394 (select "Support" from the menu, option 2 for Digital Interconnect, then option 1).
Please reference this maintenance notification when contacting support.
Posted on Jul 30, 2026 - 20:47 UTC
Sinch Contact Pro Quarterly Maintenance - Americas Aug 16, 2026 01:00 - Aug 17, 2026 07:00 UTC
Dear Customer,
We will be performing Contact Pro maintenance and version upgrade as follows.
Start time: 2026-8-16 (Sunday) 1 AM UTC
End time: 2026-8-17 (Monday) 7 AM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenace window.
What´s new documentation regarding the upcoming 26Q3 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Aug 04, 2026 - 08:39 UTC
We will be performing Contact Pro maintenance and version upgrade as follows.
Start time: 2026-8-16 (Sunday) 1 AM UTC
End time: 2026-8-17 (Monday) 7 AM UTC
Version upgrade will require max. 30 minutes downtime to all channels and user interfaces.
This will take place at some point during the maintenace window.
What´s new documentation regarding the upcoming 26Q3 release can be accessed from:
https://docs.cc.sinch.com/cloud/whats-new/en/index.html
For more details or questions related to the maintenance you can contact us via a support ticket:
https://sinchenterprise.atlassian.net/servicedesk/customer/portal/1181
Best Regards,
Sinch Contact Pro team
Posted on Aug 04, 2026 - 08:39 UTC
DI SMS 365 (SMSX) | Operator Services | Application || PCR Number # PCRSDI-12329 Aug 18, 2026 06:00-10:00 UTC
Services :: DI SMS 365 (SMSX)
PCR Number :: PCRSDI-12329
Start Date and Time (GMT):: 18th August 2026 06:00 Hrs.
End Date and Time (GMT):: 18th August 2026 10:00 Hrs.
Impact
Mobile Terminating (MT) Traffic : Potential latency
Mobile Originated (MO) Traffic : Potential latency
DR Notification: Potential latency
Description:
Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal application and systems.
Potential latency may occur in the delivery of messages.
If you experience any issues during this maintenance , please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect and then option 1) and reference this notification
Posted on Aug 07, 2026 - 16:26 UTC
PCR Number :: PCRSDI-12329
Start Date and Time (GMT):: 18th August 2026 06:00 Hrs.
End Date and Time (GMT):: 18th August 2026 10:00 Hrs.
Impact
Mobile Terminating (MT) Traffic : Potential latency
Mobile Originated (MO) Traffic : Potential latency
DR Notification: Potential latency
Description:
Digital Interconnect has scheduled a planned maintenance to carry out activities on the internal application and systems.
Potential latency may occur in the delivery of messages.
If you experience any issues during this maintenance , please contact the Operator Service NOC immediately at operatorservices.noc@sinch.com or +1 470.300.8394 (select ‘Support’ from the menu, option 2 for Digital Interconnect and then option 1) and reference this notification
Posted on Aug 07, 2026 - 16:26 UTC
Sinch Internal Maintenance - MMS Aug 20, 2026 08:00-10:30 UTC
We are writing to inform you that as part of our continuous efforts to improve the performance and reliability of our platform, we will be performing a scheduled maintenance on MMS platform at the times specified below.
Type: Maintenance - MMS
Start Time: 2026-08-20 08:00 UTC
End Time: 2026-08-20 10:30 UTC
Impact MMS: MMS US, MMS AU, MMS CA. Customers may experience intermittent delays during the maintenance window due to queued messages. All queued messages will be processed after the upgrade.
We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled, we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Jul 30, 2026 - 16:32 UTC
Type: Maintenance - MMS
Start Time: 2026-08-20 08:00 UTC
End Time: 2026-08-20 10:30 UTC
Impact MMS: MMS US, MMS AU, MMS CA. Customers may experience intermittent delays during the maintenance window due to queued messages. All queued messages will be processed after the upgrade.
We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled, we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Jul 30, 2026 - 16:32 UTC
Sinch Scheduled Maintenance - Norway - ice Aug 26, 2026 21:00-23:00 UTC
We will be performing a maintenance on our connections towards Norway - ice at the times specified below.
Type: Scheduled Maintenance - Norway - ice
Start Time: 2026-08-26 21:00 UTC
End Time: 2026-08-26 23:00 UTC
Impact MT: Clients may experience delayed or failed MT traffic for outbound messages sent to Norway - ice.
Impact DR: Clients may experience delayed or failed delivery receipts for MT traffic sent to Norway - ice.
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 Aug 10, 2026 - 08:39 UTC
Type: Scheduled Maintenance - Norway - ice
Start Time: 2026-08-26 21:00 UTC
End Time: 2026-08-26 23:00 UTC
Impact MT: Clients may experience delayed or failed MT traffic for outbound messages sent to Norway - ice.
Impact DR: Clients may experience delayed or failed delivery receipts for MT traffic sent to Norway - ice.
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 Aug 10, 2026 - 08:39 UTC
Sinch Maintenance - SSL Certificate Renewal Aug 27, 2026 07:00-10:00 UTC
Sinch will be performing a scheduled maintenance to renew the SSL certificate's.
Type: Scheduled Maintenance
Maintenance: SSL Certificate Updates
Maintenance Start Time: 2026-08-27 07:00 UTC
Maintenance End Time: 2026-08-27 10:00 UTC
Impact:
us3.smpp.api.sinch.com
eu3.smpp.api.sinch.com
eu1.httpsms.api.sinch.com
eu3.httpsms.api.sinch.com
us.xml.api.sinch.com
eu.xml.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/IgBt1caHWrPGTr1j2tT5Of8UAXz-VyLqFq2mkYrNIM7Ills
Posted on Aug 12, 2026 - 12:57 UTC
Type: Scheduled Maintenance
Maintenance: SSL Certificate Updates
Maintenance Start Time: 2026-08-27 07:00 UTC
Maintenance End Time: 2026-08-27 10:00 UTC
Impact:
us3.smpp.api.sinch.com
eu3.smpp.api.sinch.com
eu1.httpsms.api.sinch.com
eu3.httpsms.api.sinch.com
us.xml.api.sinch.com
eu.xml.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/IgBt1caHWrPGTr1j2tT5Of8UAXz-VyLqFq2mkYrNIM7Ills
Posted on Aug 12, 2026 - 12:57 UTC
Sinch Internal Maintenance - MMS Aug 27, 2026 08:00-10:30 UTC
We are writing to inform you that as part of our continuous efforts to improve the performance and reliability of our platform, we will be performing a scheduled maintenance on MMS platform at the times specified below.
Type: Maintenance - MMS
Start Time: 2026-08-27 08:00 UTC
End Time: 2026-08-27 10:30 UTC
Impact MMS: MMS US, MMS AU, MMS CA. Customers may experience intermittent delays during the maintenance window due to queued messages. All queued messages will be processed after the upgrade.
We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled, we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Jul 30, 2026 - 16:32 UTC
Type: Maintenance - MMS
Start Time: 2026-08-27 08:00 UTC
End Time: 2026-08-27 10:30 UTC
Impact MMS: MMS US, MMS AU, MMS CA. Customers may experience intermittent delays during the maintenance window due to queued messages. All queued messages will be processed after the upgrade.
We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled, we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Jul 30, 2026 - 16:32 UTC
Sinch Maintenance - US Shortcode Sep 1, 2026 09:00-10:00 UTC
Dear Client,
Sinch will be performing a scheduled maintenance on our US Shortcode Products.
As part of this update, clients may see a delays or failures during delivery from Shortcodes sending to US Devices.
Start Time: 2026-09-01 09:00 UTC
End Time: 2026-09-01 10:00 UTC
We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly.
Posted on Aug 13, 2026 - 17:30 UTC
Sinch will be performing a scheduled maintenance on our US Shortcode Products.
As part of this update, clients may see a delays or failures during delivery from Shortcodes sending to US Devices.
Start Time: 2026-09-01 09:00 UTC
End Time: 2026-09-01 10:00 UTC
We appreciate your patience and apologize for any inconvenience experienced during this maintenance period. If for any reason the maintenance is extended or cancelled we will advise you accordingly.
Posted on Aug 13, 2026 - 17:30 UTC
Sinch Scheduled Maintenance - Norway - Telia Sep 1, 2026 21:00-23:00 UTC
We will be performing a maintenance on our connections towards Norway - Telia.
Type: Scheduled Maintenance - Norway - Telia
Maintenance Start Time: 2026-09-01 21:00 UTC
Maintenance End Time: 2026-09-01 23:00 UTC
Impact MT: Clients may experience delayed or failed MT traffic for outbound messages sent to Norway - Telia.
Impact DR: Clients may experience delayed or failed delivery receipts for MT traffic sent to Norway - Telia.
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 Aug 13, 2026 - 17:18 UTC
Type: Scheduled Maintenance - Norway - Telia
Maintenance Start Time: 2026-09-01 21:00 UTC
Maintenance End Time: 2026-09-01 23:00 UTC
Impact MT: Clients may experience delayed or failed MT traffic for outbound messages sent to Norway - Telia.
Impact DR: Clients may experience delayed or failed delivery receipts for MT traffic sent to Norway - Telia.
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 Aug 13, 2026 - 17:18 UTC
Service Announcement & Maintenance: New SMSC Site & Whitelisting Requirements - US Region Oct 1, 2026 07:00-08:00 UTC
As part of our commitment to platform reliability, security, and scalability, Sinch is adding a brand-new, high-efficiency site to our core SMSC billing and messaging routing engine product. This site expansion introduces a next-generation, high-performance architecture to significantly increase our regional capacity, improve overall platform stability, and ensure robust message processing.
New Regional Connection Endpoints that are planned to go live 2026-10-01 during the target window:
US SMPP: us6.smpp.api.sinch.com:
US HTTP SMS: us6.httpsms.api.sinch.com
US Lookup API: us6.httplookup.api.sinch.com
Type: Service Announcement & Maintenance
Maintenance start time: 2026-10-01 07:00 UTC
Maintenance end time: 2026-10-01 08:00 UTC
Action Required: Firewall Whitelisting
To ensure uninterrupted message delivery as we scale our traffic to include this new site we request that you update your firewall settings.
Affected API Endpoint:
(This change only affects customers connecting to either of the following US endpoints)
US SMPP: us1.smpp.api.sinch.com and/or us7.smpp.api.sinch.com
US HTTP SMS: us1.httpsms.api.sinch.com and/or us7.httpsms.api.sinch.com
US Lookup API: us1.httplookup.api.sinch.com and/or us7.httplookup.api.sinch.com
IP Addresses to Whitelist
Please coordinate with your network security team to whitelist these target IP addresses:
35.95.194.74
44.239.11.143
52.32.122.205
If for any reason the maintenance is extended, cancelled, or postponed, we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Jul 10, 2026 - 08:37 UTC
New Regional Connection Endpoints that are planned to go live 2026-10-01 during the target window:
US SMPP: us6.smpp.api.sinch.com:
US HTTP SMS: us6.httpsms.api.sinch.com
US Lookup API: us6.httplookup.api.sinch.com
Type: Service Announcement & Maintenance
Maintenance start time: 2026-10-01 07:00 UTC
Maintenance end time: 2026-10-01 08:00 UTC
Action Required: Firewall Whitelisting
To ensure uninterrupted message delivery as we scale our traffic to include this new site we request that you update your firewall settings.
Affected API Endpoint:
(This change only affects customers connecting to either of the following US endpoints)
US SMPP: us1.smpp.api.sinch.com and/or us7.smpp.api.sinch.com
US HTTP SMS: us1.httpsms.api.sinch.com and/or us7.httpsms.api.sinch.com
US Lookup API: us1.httplookup.api.sinch.com and/or us7.httplookup.api.sinch.com
IP Addresses to Whitelist
Please coordinate with your network security team to whitelist these target IP addresses:
35.95.194.74
44.239.11.143
52.32.122.205
If for any reason the maintenance is extended, cancelled, or postponed, we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Jul 10, 2026 - 08:37 UTC
