Scheduled Maintenance - US3 Site
Scheduled Maintenance Report for Sinch
The scheduled maintenance has been completed.
Posted Nov 18, 2021 - 12:00 UTC
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Nov 18, 2021 - 09:02 UTC
Dear Client,

We are notifying of the cancellation of the maintenance for US3 scheduled below:

Type: Scheduled Maintenance
Affected site: US3
Start Time: 2021-11-17 09:00 UTC
End Time: 2021-11-17 11:00 UTC

In lieu to the cancelled maintenance window above, we will be performing the scheduled network maintenance at our US3 site in the updated maintenance windows below:

Type: Scheduled Maintenance
Affected site: US3
SMPP FQDN: / / (
HTTP FQDN: / / (
ENUM FQDN: / / (

Maintenance Window #1:
Start Time: 2021-11-16 09:00 UTC
End Time: 2021-11-16 12:00 UTC

Maintenance Window #2:
Start Time: 2021-11-18 09:00 UTC
End Time: 2021-11-18 12:00 UTC

Clients will experience failures or unable to connect to SMPP and HTTP API on the US3 site for MT/MO traffic
Clients will experience failures to Number Lookups via US3 site

Impacted Destinations:

Canada 2-Way Short Code (SasKTel and Wind Mobile only)
Panama 2-Way Short Code
Mexico 2-Way Short Code
Venezuela (Telefonica)

Corresponding redundant sites will be available. Please make sure you are connected to two sites in advance to ensure no loss of service.

Alternate SMPP FQDN: / (
Alternate HTTP FQDN: / (
Alternate ENUM FQDN: / (

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 should you require further information or assistance.


Posted Nov 09, 2021 - 23:20 UTC
This scheduled maintenance affected: Messaging API - US (SMPP, HTTP), Connectivity by region (SMS - CA - ShortCode), and Lookup API Endpoints (HTTP US).