Sinch: External Maintenance - United States - T-Mobile
Affected components: External Connectivity - MMS - USExternal Connectivity - MMS - US - 10DLCExternal Connectivity - SMS - US - 10DLCExternal Connectivity - SMS - US - ShortCodeMMS - USMMS - US - 10DLCSMS - US - 10DLCSMS - US - ShortCode
Timeline of updates
- 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: 2025-10-19 07:00 UTC
Maintenance end time: 2025-10-19 12:00 UTC - scheduled
We are writing to inform you that the concerned maintenance activity has been changed to the below mentioned timeframe.
Previous Start Time: 2025-10-19 07:00 UTC
Previous End Time: 2025-10-19 12:00 UTC
New Start Time: 2025-10-19 04:00 UTC
New End Time: 2025-10-19 12:00 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 - in progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
- completed
The scheduled maintenance has been completed.
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-22 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
ef3859d794f362d0…
Impact, status and times are the vendor’s own, as last archived. View on status.sinch.com (opens in new tab).
Cite this
Maintenance posted by Sinch, started 2026-10-15 19:40 UTC, resolved after 4 d, 4 update(s).
- Title
- External Maintenance - United States - T-Mobile
- Vendor
- Sinch
- Date
- URL
- https://rewindex.com/company/sinch/incidents/f6txd6kxjpks
Sinch profileRecent Sinch incidentsAll outages on October 15, 2026Sinch in October 2026MarkdownJSON