In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 03, 2026 - 03:01 UTC
Sep 03, 2026 - 03:01 UTC
Scheduled - United States - T-Mobile has scheduled a maintenance.
Impact SMS: Clients may experience delayed or failed Short Code and 10DLC MT/MO traffic towards T-Mobile US
Impact MMS: Clients may experience delayed or failed Short Code and 10DLC MT/MO traffic towards T-Mobile US
Maintenance Start Time: 2026-09-03 03:00 UTC
Maintenance End Time: 2026-09-03 11:00 UTC
Sep 3, 2026 03:00-11:00 UTC
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: 2026-09-03 03:00 UTC
Maintenance End Time: 2026-09-03 11:00 UTC
Sep 3, 2026 03:00-11:00 UTC
External Connectivity
Under Maintenance
SMS - APAC
Operational
SMS - EMEA
Operational
SMS - LATAM
Operational
SMS - CA - ShortCode
Operational
SMS - CA - Toll Free
Operational
SMS - US - ShortCode
Under Maintenance
SMS - US - Toll Free
Operational
SMS - US - 10DLC
Under Maintenance
MMS - US
Under Maintenance
MMS - US - Toll Free
Operational
MMS - US - 10DLC
Under Maintenance
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
External Maintenance - United States - T-Mobile Sep 4, 2026 03:00-11:00 UTC
United States - T-Mobile has scheduled a maintenance.
Impact SMS: Clients may experience delayed or failed Short Code and 10DLC MT/MO traffic towards T-Mobile US
Impact MMS: Clients may experience delayed or failed Short Code and 10DLC MT/MO traffic towards T-Mobile US
Maintenance Start Time: 2026-09-04 03:00 UTC
Maintenance End Time: 2026-09-04 11:00 UTC
Posted on Sep 02, 2026 - 20:25 UTC
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: 2026-09-04 03:00 UTC
Maintenance End Time: 2026-09-04 11:00 UTC
Posted on Sep 02, 2026 - 20:25 UTC
Sinch Digital Interconnect | Customer Management Portal | Planned Maintenance PCR # PCRSDI-12347 Sep 8, 2026 04:00-05:00 UTC
Start Date and Time: 08-Sep-2026 - 04:00 UTC
End Date and Time : 08-Sep-2026 - 05:00 UTC
Description:
We will be performing maintenance to upgrade the server hosting the Customer Management Portal.
This portal is accessed by the URL - https://eu5.cmp.sdi.sinch.com/SAPCMP/login#
Action required: None.
Impact: Customer Management Portal will be offline during the maintenance window. Customers are advised not to use the portal during this period.
If you experience any issues during or after 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.
Posted on Sep 01, 2026 - 17:24 UTC
End Date and Time : 08-Sep-2026 - 05:00 UTC
Description:
We will be performing maintenance to upgrade the server hosting the Customer Management Portal.
This portal is accessed by the URL - https://eu5.cmp.sdi.sinch.com/SAPCMP/login#
Action required: None.
Impact: Customer Management Portal will be offline during the maintenance window. Customers are advised not to use the portal during this period.
If you experience any issues during or after 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.
Posted on Sep 01, 2026 - 17:24 UTC
Sinch Internal Maintenance – Chatlayer Platform (EMEA region) Sep 9, 2026 06:00-07:00 UTC
We are writing to inform you that, as part of our continuous efforts to improve the performance and reliability of the Chatlayer platform, we will be performing a scheduled Kafka cluster upgrade at the times specified below.
Type: Scheduled Maintenance – Chatlayer Kafka Upgrade
Maintenance Start Time: 2026-09-09 06:00 UTC
Maintenance End Time: 2026-09-09 07:00 UTC
Impact: Customers may experience brief, intermittent delays to bot, voice, or integration traffic during their maintenance window. No message loss or extended downtime is expected.
We appreciate your patience and apologize for any inconvenience during this maintenance period. If for any reason the maintenance is extended or rescheduled, we will update this page accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Aug 21, 2026 - 12:57 UTC
Type: Scheduled Maintenance – Chatlayer Kafka Upgrade
Maintenance Start Time: 2026-09-09 06:00 UTC
Maintenance End Time: 2026-09-09 07:00 UTC
Impact: Customers may experience brief, intermittent delays to bot, voice, or integration traffic during their maintenance window. No message loss or extended downtime is expected.
We appreciate your patience and apologize for any inconvenience during this maintenance period. If for any reason the maintenance is extended or rescheduled, we will update this page accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Aug 21, 2026 - 12:57 UTC
Sinch Internal Maintenance – Chatlayer Platform (US region) Sep 9, 2026 08:00-09:00 UTC
We are writing to inform you that, as part of our continuous efforts to improve the performance and reliability of the Chatlayer platform, we will be performing a scheduled Kafka cluster upgrade at the times specified below.
Type: Scheduled Maintenance – Chatlayer Kafka Upgrade
Maintenance Start Time: 2026-09-09 08:00 UTC
Maintenance End Time: 2026-09-09 09:00 UTC
Impact: Customers may experience brief, intermittent delays to bot, voice, or integration traffic during their maintenance window. No message loss or extended downtime is expected.
We appreciate your patience and apologize for any inconvenience during this maintenance period. If for any reason the maintenance is extended or rescheduled, we will update this page accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Aug 21, 2026 - 12:59 UTC
Type: Scheduled Maintenance – Chatlayer Kafka Upgrade
Maintenance Start Time: 2026-09-09 08:00 UTC
Maintenance End Time: 2026-09-09 09:00 UTC
Impact: Customers may experience brief, intermittent delays to bot, voice, or integration traffic during their maintenance window. No message loss or extended downtime is expected.
We appreciate your patience and apologize for any inconvenience during this maintenance period. If for any reason the maintenance is extended or rescheduled, we will update this page accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Aug 21, 2026 - 12:59 UTC
Sinch Internal Maintenance – Chatlayer Platform (South America region) Sep 9, 2026 09:00-10:00 UTC
We are writing to inform you that, as part of our continuous efforts to improve the performance and reliability of the Chatlayer platform, we will be performing a scheduled Kafka cluster upgrade at the times specified below.
Type: Scheduled Maintenance – Chatlayer Kafka Upgrade
Maintenance Start Time: 2026-09-09 09:00 UTC
Maintenance End Time: 2026-09-09 10:00 UTC
Impact: Customers may experience brief, intermittent delays to bot, voice, or integration traffic during their maintenance window. No message loss or extended downtime is expected.
We appreciate your patience and apologize for any inconvenience during this maintenance period. If for any reason the maintenance is extended or rescheduled, we will update this page accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Aug 21, 2026 - 13:00 UTC
Type: Scheduled Maintenance – Chatlayer Kafka Upgrade
Maintenance Start Time: 2026-09-09 09:00 UTC
Maintenance End Time: 2026-09-09 10:00 UTC
Impact: Customers may experience brief, intermittent delays to bot, voice, or integration traffic during their maintenance window. No message loss or extended downtime is expected.
We appreciate your patience and apologize for any inconvenience during this maintenance period. If for any reason the maintenance is extended or rescheduled, we will update this page accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Aug 21, 2026 - 13:00 UTC
Sinch Internal Maintenance – Chatlayer Platform (India region) Sep 9, 2026 15:00-16:00 UTC
We are writing to inform you that, as part of our continuous efforts to improve the performance and reliability of the Chatlayer platform, we will be performing a scheduled Kafka cluster upgrade at the times specified below.
Type: Scheduled Maintenance – Chatlayer Kafka Upgrade
Maintenance Start Time: 2026-09-09 15:00 UTC
Maintenance End Time: 2026-09-09 16:00 UTC
Impact: Customers may experience brief, intermittent delays to bot, voice, or integration traffic during their maintenance window. No message loss or extended downtime is expected.
We appreciate your patience and apologize for any inconvenience during this maintenance period. If for any reason the maintenance is extended or rescheduled, we will update this page accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Aug 21, 2026 - 13:02 UTC
Type: Scheduled Maintenance – Chatlayer Kafka Upgrade
Maintenance Start Time: 2026-09-09 15:00 UTC
Maintenance End Time: 2026-09-09 16:00 UTC
Impact: Customers may experience brief, intermittent delays to bot, voice, or integration traffic during their maintenance window. No message loss or extended downtime is expected.
We appreciate your patience and apologize for any inconvenience during this maintenance period. If for any reason the maintenance is extended or rescheduled, we will update this page accordingly.
Please contact support@sinch.com should you require further information or assistance.
Posted on Aug 21, 2026 - 13:02 UTC
Sinch Internal Maintenance - EU1 Network Infrastructure Sep 10, 2026 02:00-04:00 UTC
Update -
Dear Client,
We are writing to inform you that the concerned maintenance activity has been rescheduled to the time window below:
Previous Start Time: 2026-09-10 19:00 UTC
Previous End Time: 2026-09-10 21:00 UTC
New Start Time: 2026-09-10 02:00 UTC
New End Time: 2026-09-10 04:00 UTC
Impact: Customers may experience multiple brief connectivity issues during the duration of this maintenance towards the impacted endpoints listed below.
Impacted endpoints:
eu1.smpp.api.sinch.com
eu1.httpsms.api.sinch.com
eu1.httplookup.api.sinch.com
To avoid connectivity issues we recommend connecting to the below endpoints during the duration of this maintenance.
Available endpoints:
eu3.smpp.api.sinch.com
eu3.httpsms.api.sinch.com
eu3.httplookup.api.sinch.com
If for any reason the maintenance is extended or cancelled we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Sep 01, 2026 - 14:50 UTC
We are writing to inform you that the concerned maintenance activity has been rescheduled to the time window below:
Previous Start Time: 2026-09-10 19:00 UTC
Previous End Time: 2026-09-10 21:00 UTC
New Start Time: 2026-09-10 02:00 UTC
New End Time: 2026-09-10 04:00 UTC
Impact: Customers may experience multiple brief connectivity issues during the duration of this maintenance towards the impacted endpoints listed below.
Impacted endpoints:
eu1.smpp.api.sinch.com
eu1.httpsms.api.sinch.com
eu1.httplookup.api.sinch.com
To avoid connectivity issues we recommend connecting to the below endpoints during the duration of this maintenance.
Available endpoints:
eu3.smpp.api.sinch.com
eu3.httpsms.api.sinch.com
eu3.httplookup.api.sinch.com
If for any reason the maintenance is extended or cancelled we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Sep 01, 2026 - 14:50 UTC
Scheduled -
Dear Client,
We are reaching out to inform you that a maintenance will be performed on our EU1 network infrastructure during the scheduled time window below.
Type: Network Maintenance
Affected Site: EU1
Maintenance Start Time: 2026-09-10 19:00 UTC
Maintenance End Time: 2026-09-10 21:00 UTC
Impact: Customers may experience multiple brief connectivity issues during the duration of this maintenance towards the impacted endpoints listed below.
Impacted endpoints:
eu1.smpp.api.sinch.com
eu1.httpsms.api.sinch.com
eu1.httplookup.api.sinch.com
To avoid connectivity issues we recommend connecting to the below endpoints during the duration of this maintenance.
Available endpoints:
eu3.smpp.api.sinch.com
eu3.httpsms.api.sinch.com
eu3.httplookup.api.sinch.com
If for any reason the maintenance is extended or cancelled we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Aug 27, 2026 - 17:14 UTC
We are reaching out to inform you that a maintenance will be performed on our EU1 network infrastructure during the scheduled time window below.
Type: Network Maintenance
Affected Site: EU1
Maintenance Start Time: 2026-09-10 19:00 UTC
Maintenance End Time: 2026-09-10 21:00 UTC
Impact: Customers may experience multiple brief connectivity issues during the duration of this maintenance towards the impacted endpoints listed below.
Impacted endpoints:
eu1.smpp.api.sinch.com
eu1.httpsms.api.sinch.com
eu1.httplookup.api.sinch.com
To avoid connectivity issues we recommend connecting to the below endpoints during the duration of this maintenance.
Available endpoints:
eu3.smpp.api.sinch.com
eu3.httpsms.api.sinch.com
eu3.httplookup.api.sinch.com
If for any reason the maintenance is extended or cancelled we will advise you accordingly.
Please contact support@sinch.com should you require further information or assistance.
Aug 27, 2026 - 17:14 UTC
Sinch Internal Maintenance - US2 Network Infrastructure Sep 10, 2026 04:00-07:00 UTC
Update -
Dear Client,
We are writing to inform you that the concerned maintenance activity has been rescheduled to the time window below:
Previous Start Time: 2026-09-10 07:00 UTC
Previous End Time: 2026-09-10 09:00 UTC
New Start Time: 2026-09-10 04:00 UTC
New End Time: 2026-09-10 07:00 UTC
Impact: No expected impact.
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.
Sep 01, 2026 - 15:16 UTC
We are writing to inform you that the concerned maintenance activity has been rescheduled to the time window below:
Previous Start Time: 2026-09-10 07:00 UTC
Previous End Time: 2026-09-10 09:00 UTC
New Start Time: 2026-09-10 04:00 UTC
New End Time: 2026-09-10 07:00 UTC
Impact: No expected impact.
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.
Sep 01, 2026 - 15:16 UTC
Scheduled -
Dear Client,
We are reaching out to inform you that a maintenance will be performed on our US2 network infrastructure during the scheduled time window below.
Type: Network Maintenance
Affected Site: US2
Maintenance Start Time: 2026-09-10 07:00 UTC
Maintenance End Time: 2026-09-10 09:00 UTC
Impact: No expected impact.
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.
Aug 27, 2026 - 16:52 UTC
We are reaching out to inform you that a maintenance will be performed on our US2 network infrastructure during the scheduled time window below.
Type: Network Maintenance
Affected Site: US2
Maintenance Start Time: 2026-09-10 07:00 UTC
Maintenance End Time: 2026-09-10 09:00 UTC
Impact: No expected impact.
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.
Aug 27, 2026 - 16:52 UTC
FR Market Service Reminder Sep 10, 2026 21:00 - Sep 11, 2026 00:00 UTC
This is a reminder that sender ID restriction for alphanumeric senders will be enabled in the FR market on 10th of September.
Enablement will take place between September 10th, 2026, 21:00 UTC and September 11th, 2026, 00:00 UTC.
Posted on Aug 28, 2026 - 13:45 UTC
Enablement will take place between September 10th, 2026, 21:00 UTC and September 11th, 2026, 00:00 UTC.
Posted on Aug 28, 2026 - 13:45 UTC
ES Market Service Reminder Sep 14, 2026 12:00-14:00 UTC
This is a reminder that sender ID validation for alphanumeric senders will be enabled in the ES market on 14th of September.
Enablement will take place between September 14th, 2026, 12:00 UTC and September 14th, 2026, 14:00 UTC.
Posted on Aug 28, 2026 - 13:46 UTC
Enablement will take place between September 14th, 2026, 12:00 UTC and September 14th, 2026, 14:00 UTC.
Posted on Aug 28, 2026 - 13:46 UTC
Sinch Internal Maintenance - IN1 Network Infrastructure Sep 14, 2026 19:00-21:00 UTC
Update -
Dear Client,
We are writing to inform you that the concerned maintenance activity has been rescheduled to the time window below:
Previous Start Time: 2026-09-10 12:00 UTC
Previous End Time: 2026-09-10 14:00 UTC
New Start Time: 2026-09-14 19:00 UTC
New End Time: 2026-09-14 21:00 UTC
Impact: No expected impact.
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.
Sep 01, 2026 - 15:41 UTC
We are writing to inform you that the concerned maintenance activity has been rescheduled to the time window below:
Previous Start Time: 2026-09-10 12:00 UTC
Previous End Time: 2026-09-10 14:00 UTC
New Start Time: 2026-09-14 19:00 UTC
New End Time: 2026-09-14 21:00 UTC
Impact: No expected impact.
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.
Sep 01, 2026 - 15:41 UTC
Scheduled -
Dear Client,
We are reaching out to inform you that a maintenance will be performed on our IN1 network infrastructure during the scheduled time window below.
Type: Network Maintenance
Affected Site: IN1
Maintenance Start Time: 2026-09-10 12:00 UTC
Maintenance End Time: 2026-09-10 14:00 UTC
Impact: No expected impact.
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.
Aug 27, 2026 - 17:06 UTC
We are reaching out to inform you that a maintenance will be performed on our IN1 network infrastructure during the scheduled time window below.
Type: Network Maintenance
Affected Site: IN1
Maintenance Start Time: 2026-09-10 12:00 UTC
Maintenance End Time: 2026-09-10 14:00 UTC
Impact: No expected impact.
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.
Aug 27, 2026 - 17:06 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