Notice history

Jul 2026

Aug 2026

Sep 2026

Jul 2026

Aug 2026

Sep 2026

Jul 2026

Aug 2026

Sep 2026

Jul 2026

Aug 2026

Sep 2026

Jul 2026

Aug 2026

Sep 2026

Jul 2026

Aug 2026

Sep 2026

Sep 2026

United States SMS and MMS Carrier Maintenance - T-Mobile

Completed
September 25, 2026 at 11:00 AMUTC
Completed
September 25, 2026 at 11:00 AMUTC
The scheduled maintenance has been completed.
In progress
September 25, 2026 at 3:00 AMUTC
In progress
September 25, 2026 at 3:00 AMUTC
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Update
September 25, 2026 at 2:00 AMUTC
Update
September 25, 2026 at 2:00 AMUTC
Maintenance will begin as scheduled in 60 minutes.
Scheduled
September 22, 2026 at 6:54 PMUTC
Scheduled
September 22, 2026 at 6:54 PMUTC
The T-Mobile network in the United States is conducting a planned maintenance from 24 September 2026 at 20:00 PDT until 25 September 2026 at 04:00 PDT. During the maintenance window, there could be intermittent delays delivering SMS and MMS to and from T-Mobile United States handsets when sending via long codes and short codes.

United States and Canada Twilio SMS and MMS Maintenance

Completed
September 24, 2026 at 7:00 AMUTC
Completed
September 24, 2026 at 7:00 AMUTC
The scheduled maintenance has been completed.
In progress
September 24, 2026 at 3:00 AMUTC
In progress
September 24, 2026 at 3:00 AMUTC
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Update
September 24, 2026 at 2:00 AMUTC
Update
September 24, 2026 at 2:00 AMUTC
Maintenance will begin as scheduled in 60 minutes.
Scheduled
August 12, 2026 at 6:57 PMUTC
Scheduled
August 12, 2026 at 6:57 PMUTC
Twilio is conducting a planned maintenance from 23 September 2026 at 20:00 PDT until 24 September 2026 at 00:00 PDT. During the maintenance window, there could be intermittent delays or failures delivering SMS and MMS to and from United States and Canada handsets via subset of long codes, short codes and toll free numbers.

United States SMS and MMS Carrier Maintenance - T-Mobile

Completed
September 24, 2026 at 11:00 AMUTC
Completed
September 24, 2026 at 11:00 AMUTC
The scheduled maintenance has been completed.
In progress
September 24, 2026 at 3:01 AMUTC
In progress
September 24, 2026 at 3:01 AMUTC
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Update
September 24, 2026 at 2:01 AMUTC
Update
September 24, 2026 at 2:01 AMUTC
Maintenance will begin as scheduled in 60 minutes.
Scheduled
September 22, 2026 at 6:53 PMUTC
Scheduled
September 22, 2026 at 6:53 PMUTC
The T-Mobile network in the United States is conducting a planned maintenance from 23 September 2026 at 20:00 PDT until 24 September 2026 at 04:00 PDT. During the maintenance window, there could be intermittent delays delivering SMS and MMS to and from T-Mobile United States handsets when sending via long codes and short codes.

Resolved
September 23, 2026 at 8:10 PMUTC
Resolved
September 23, 2026 at 8:10 PMUTC
The incident has been resolved and SMS delivery from Twilio to affected countries is operating normally.
Monitoring
September 23, 2026 at 6:11 PMUTC
Monitoring
September 23, 2026 at 6:11 PMUTC
We have observed a recovery in SMS delivery from Twilio Alphanumeric Sender Type to multiple countries and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
Update
September 23, 2026 at 2:15 PMUTC
Update
September 23, 2026 at 2:15 PMUTC
Twilio customers may be experiencing SMS delivery failures from Twilio Alphanumeric Sender Type to multiple networks in multiple countries. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
Update
September 23, 2026 at 12:15 PMUTC
Update
September 23, 2026 at 12:15 PMUTC
Twilio customers may be experiencing SMS delivery failures from Twilio to multiple networks in multiple countries. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
Identified
September 23, 2026 at 11:14 AMUTC
Identified
September 23, 2026 at 11:14 AMUTC
Twilio customers may be experiencing SMS delivery failures from Twilio Alphanumeric Sender IDs to network subscribers on multiple networks in multiple countries. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
Investigating
September 23, 2026 at 10:58 AMUTC
Investigating
September 23, 2026 at 10:58 AMUTC
Twilio customers may be experiencing SMS delivery failures from Twilio Alphanumeric Sender IDs to multiple networks in multiple countries. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

United States SMS Carrier Maintenance - AT&T

Completed
September 23, 2026 at 7:00 AMUTC
Completed
September 23, 2026 at 7:00 AMUTC
The scheduled maintenance has been completed.
In progress
September 23, 2026 at 3:00 AMUTC
In progress
September 23, 2026 at 3:00 AMUTC
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Update
September 23, 2026 at 2:01 AMUTC
Update
September 23, 2026 at 2:01 AMUTC
Maintenance will begin as scheduled in 60 minutes.
Scheduled
September 18, 2026 at 12:30 PMUTC
Scheduled
September 18, 2026 at 12:30 PMUTC
The AT&T network in the United States is conducting a planned maintenance from 22 September 2026 at 20:00 PDT until 23 September 2026 at 00:00 PDT. During the maintenance window, there could be intermittent delays delivering SMS to and from AT&T United States handsets.

Aug 2026

United States SMS and MMS Carrier Maintenance - T-Mobile

Completed
August 31, 2026 at 11:00 AMUTC
Completed
August 31, 2026 at 11:00 AMUTC
The scheduled maintenance has been completed.
In progress
August 31, 2026 at 3:00 AMUTC
In progress
August 31, 2026 at 3:00 AMUTC
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Update
August 31, 2026 at 2:01 AMUTC
Update
August 31, 2026 at 2:01 AMUTC
Maintenance will begin as scheduled in 60 minutes.
Scheduled
August 27, 2026 at 8:45 PMUTC
Scheduled
August 27, 2026 at 8:45 PMUTC
The T-Mobile network in the United States is conducting a planned maintenance from 30 August 2026 at 20:00 PDT until 31 August 2026 at 04:00 PDT. During the maintenance window, there could be intermittent delays delivering SMS and MMS to and from T-Mobile United States handsets when sending via long codes and short codes.

Resolved
August 30, 2026 at 6:17 PMUTC
Resolved
August 30, 2026 at 6:17 PMUTC
The incident has been resolved and SMS delivery receipts from Twilio Long Codes to Liberty network subscribers in Puerto Rico are operating normally.
Monitoring
August 30, 2026 at 4:15 PMUTC
Monitoring
August 30, 2026 at 4:15 PMUTC
We have observed a recovery in SMS delivery receipts from Twilio Long Codes to Liberty network subscribers in Puerto Rico and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
Update
August 30, 2026 at 4:59 AMUTC
Update
August 30, 2026 at 4:59 AMUTC
Twilio customers may be experiencing SMS delivery receipt delays from Twilio Long Codes to Liberty network subscribers in Puerto Rico. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 24 hours or as soon as more information becomes available.
Update
August 29, 2026 at 12:53 PMUTC
Update
August 29, 2026 at 12:53 PMUTC
Twilio customers may be experiencing SMS delivery receipt delays from Twilio Long Codes to Liberty network subscribers in Puerto Rico. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 16 hours or as soon as more information becomes available.
Update
August 29, 2026 at 4:49 AMUTC
Update
August 29, 2026 at 4:49 AMUTC
Twilio customers may be experiencing SMS delivery receipt delays from Twilio Long Codes to Liberty network subscribers in Puerto Rico. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 8 hours or as soon as more information becomes available.
Update
August 29, 2026 at 12:48 AMUTC
Update
August 29, 2026 at 12:48 AMUTC
Twilio customers may be experiencing SMS delivery receipt delays from Twilio Long Codes to Liberty network subscribers in Puerto Rico. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 4 hours or as soon as more information becomes available.
Update
August 28, 2026 at 10:47 PMUTC
Update
August 28, 2026 at 10:47 PMUTC
Twilio customers may be experiencing SMS delivery receipt delays from Twilio Long Codes to Liberty network subscribers in Puerto Rico. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 2 hours or as soon as more information becomes available.
Identified
August 28, 2026 at 9:46 PMUTC
Identified
August 28, 2026 at 9:46 PMUTC
Twilio customers may be experiencing SMS delivery receipt delays from Twilio Long Codes to Liberty network subscribers in Puerto Rico. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.
Monitoring
August 28, 2026 at 6:10 PMUTC
Monitoring
August 28, 2026 at 6:10 PMUTC
We have observed a recovery in SMS delivery receipts from Twilio Long Codes to Liberty network subscribers in Puerto Rico and are monitoring service stability. We will provide another update in 16 hours or as soon as more information becomes available.

United States and Canada Twilio SMS and MMS Maintenance

Completed
August 27, 2026 at 7:00 AMUTC
Completed
August 27, 2026 at 7:00 AMUTC
The scheduled maintenance has been completed.
In progress
August 27, 2026 at 3:00 AMUTC
In progress
August 27, 2026 at 3:00 AMUTC
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Update
August 27, 2026 at 2:00 AMUTC
Update
August 27, 2026 at 2:00 AMUTC
Maintenance will begin as scheduled in 60 minutes.
Scheduled
July 07, 2026 at 2:26 AMUTC
Scheduled
July 07, 2026 at 2:26 AMUTC
Twilio is conducting a planned maintenance from 26 August 2026 at 20:00 PDT until 27 August 2026 at 00:00 PDT. During the maintenance window, there could be intermittent delays or failures delivering SMS and MMS to United States and Canada handsets when sending via subset of long codes and short codes.

US SMS Carrier Maintenance - Small US Carriers

Completed
August 26, 2026 at 6:00 AMUTC
Completed
August 26, 2026 at 6:00 AMUTC
The scheduled maintenance has been completed.
In progress
August 26, 2026 at 4:00 AMUTC
In progress
August 26, 2026 at 4:00 AMUTC
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Update
August 26, 2026 at 3:00 AMUTC
Update
August 26, 2026 at 3:00 AMUTC
Maintenance will begin as scheduled in 60 minutes.
Scheduled
August 21, 2026 at 5:41 PMUTC
Scheduled
August 21, 2026 at 5:41 PMUTC
A subset of small networks in the US are conducting a planned maintenance from 25 August 2026 at 21:00 PDT until 25 August 2026 at 23:00 PDT. During the maintenance window, there could be intermittent delays delivering SMS to small US carriers handsets.

United States SMS Carrier Partner Maintenance

Completed
August 25, 2026 at 11:30 AMUTC
Completed
August 25, 2026 at 11:30 AMUTC
The scheduled maintenance has been completed.
In progress
August 25, 2026 at 7:00 AMUTC
In progress
August 25, 2026 at 7:00 AMUTC
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Scheduled
August 25, 2026 at 6:53 AMUTC
Scheduled
August 25, 2026 at 6:53 AMUTC
Our SMS carrier partner in the United States is conducting a planned maintenance from 25 August 2026 at 00:00 PDT until 25 August 2026 at 04:30 PDT. During the maintenance window, there could be intermittent delays delivering SMS to and from United States handsets via subset of United States long codes and short codes.

We are aware of the short notice and are working with our Carrier Partners to provide earlier notification where possible.

Jul 2026

Jul 2026 to Sep 2026

Autoflow - Notice history

Twilio → Carrier Networks experiencing degraded performance

Notice history

Sep 2026

Aug 2026

Jul 2026