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Twilio Services
Issues related to Twilio’s Software
External Connectivity
Issues found outside of Twilio’s Network
MAINTENANCE UPDATE NOTIFICATIONS
UPCOMING CARRIER MAINTENANCE
External carriers notify us when they are conducting maintenance.
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SYSTEM METRICS
Stay up to date on the speed at which you connect.
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All Systems Operational
PROGRAMMABLE MESSAGING Operational
MMS   Operational
SMS   Operational
SMPP   Operational
Channels   Operational
Notify   Operational
PROGRAMMABLE VOICE Operational
PSTN   Operational
SIP Interface   Operational
Client Web   Operational
Client Mobile   ? Operational
Conference   ? Operational
Recording   ? Operational
Queue   ? Operational
Text-to-Speech   ? Operational
Recording Transcriptions   Operational
TwiML   Operational
Voice Insights   Operational
Speech Recognition   Operational
AUTHY Operational
Authy 2FA   Operational
Verify   Operational
Authy App   Operational
Lookup   ? Operational
AUTOPILOT   Operational
CONTACT CENTER Operational
TaskRouter   ? Operational
Flex   Operational
ELASTIC SIP TRUNKING   ? Operational
INTERCONNECT   Operational
PHONE NUMBERS   ? Operational
PROGRAMMABLE CHAT   Operational
PROGRAMMABLE FAX   Operational
PROGRAMMABLE VIDEO Operational
Peer-to-Peer Rooms   Operational
Network Traversal Service   ? Operational
Group Rooms   Operational
PROGRAMMABLE WIRELESS   Operational
PROXY   Operational
SERVERLESS Operational
Studio   Operational
Sync   Operational
Functions   Operational
TwiML Bins   Operational
TWILIO PLATFORM Operational
Billing   Operational
Debugger & Alerts   Operational
Console   Operational
REST API   ? Operational
Customer Support Center   ? Operational
CARRIER NETWORK Operational
SMS Long Code, North America   Operational
MMS Long Code, North America   Operational
SMS Short Code, North America   Operational
MMS Short Code, North America   Operational
SMS Toll-Free, North America   Operational
SMS, Latin America   Operational
SMS, APAC   Operational
SMS, Europe   Operational
SMS, Middle East & Africa   Operational
SMS Delivery Notifications & Status Callbacks   Operational
Voice, North America   Operational
Voice, Latin America   Operational
Voice, APAC   Operational
Voice, Europe   Operational
Voice, Middle East & Africa   Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
System Metrics Month Week Day
API Uptime
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API Response Time - North America
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API Response Time - Europe
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Past Incidents
Jan 22, 2019
SMS Delivery Delays on US Short Codes
Resolved - We have confirmed that the issue is now resolved. We are now observing immediate and stable delivery for inbound SMS from all networks to Twilio short codes. All services are operating normally at this time.
Jan 22, 07:21 PST
Update - Our carrier partner has successfully implemented a fix. Inbound SMS from AT&T and Sprint handsets to Twilio US short codes are now being processed. There is still a queue on the carrier partner’s platform, so customers may still experience latency until this queue is processed. We will provide an update once the queue clears.
Jan 22, 06:31 PST
Identified - We are observing recovery for inbound SMS sent from Verizon, T-Mobile and MetroPCS devices. Inbound SMS sent from AT&T and Sprint devices to a subset of Twilio short codes however, are still experiencing delays. Outbound SMS sent from short codes and long code SMS are not affected. Our carrier partner has identified the issue and is working on a fix. We will provide an update as soon as available.
Jan 22, 03:36 PST
Investigating - We’re observing further delays for inbound SMS sent from AT&T, T-Mobile and Sprint devices to a subset of Twilio short codes. SMS sent from Verizon devices and outbound SMS are not affected. We are working with our carrier partner to resolve the issue.
Jan 22, 01:27 PST
Monitoring - We are observing recovery in short code SMS latency for outbound and inbound messages sent from and to US short codes. We will continue to monitor and work with our carrier partners to confirm the issue is fully resolved.
Jan 22, 00:30 PST
Investigating - We are observing increased delays in SMS delivery for inbound and outbound SMS sent from/to a subset of US short codes. Our engineers are working with our carrier partner to resolve the issue and will provide more information as soon as available.
Jan 22, 00:15 PST
Jan 21, 2019
Inbound Call Disconnections on Peru Numbers
Resolved - The issue with disconnections on inbound calls to Peru numbers has been resolved. All systems are now operating normally.
Jan 21, 10:37 PST
Update - We are continuing to work with our carrier partner to resolve the issue with disconnections on inbound calls to Peru numbers. The carrier is actively working on the issue and we will provide further updates when available.
Jan 21, 07:08 PST
Investigating - We have detected an increase in inbound calls disconnecting for a subset of Peru phone numbers. Customers may experience calls disconnecting after 30 seconds. Our engineers are working with our carrier partner to resolve the issue and will provide more information as soon as available.
Jan 21, 02:16 PST
Jan 20, 2019
US/Canada Toll-Free SMS carrier maintenance - Jan 19 20:00 - Jan 20 02:00 PT
Completed - The scheduled maintenance has been completed.
Jan 20, 02:00 PST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 19, 20:00 PST
Scheduled - Our carrier partner for US/Canada Toll-Free SMS traffic is conducting maintenance Saturday 19 January 2019 20:00 - Sunday 20 January 2019 02:00 Pacific Time. Message delays on incoming and outgoing Toll-Free SMS may occur during this period.

Carrier maintenance period:

US Pacific: 01/19/2019 20:00 - 01/20/2019 02:00
US Mountain: 01/19/2019 21:00 - 01/20/2019 03:00
US Central: 01/19/2019 22:00 - 01/20/2019 04:00
US Eastern: 01/19/2019 23:00 - 01/20/2019 05:00
UTC: 01/20/2019 04:00 - 01/20/2019 10:00
Jan 14, 15:41 PST
Jan 18, 2019

No incidents reported.

Jan 17, 2019

No incidents reported.

Jan 16, 2019
Wireless: SIM Lifecycle Management activities temporarily in unscheduled maintenance mode
Resolved - This incident has been resolved since 11.30pm PST
Jan 16, 23:47 PST
Investigating - A downstream SIM connectivity provider (T-Mobile USA) is currently experiencing issues. As such, SIM lifecycle activities (activation, suspension, Rate Plan changes, etc) are currently being accepted in the `scheduled` state, and will be automatically queued and actioned at a later time when the downstream provider becomes available.
Jan 16, 22:53 PST
Programmable Wireless: SIM Lifecycle Management activities temporarily in unscheduled maintenance mode
Resolved - This incident is resolved. All systems are working as designed.
Jan 16, 15:26 PST
Update - We remain in maintenance mode. We are working with T-Mobile toward a resolution.
Jan 16, 13:44 PST
Investigating - A downstream SIM connectivity provider (T-Mobile USA) is currently experiencing issues. As such, SIM lifecycle activities (activation, suspension, Rate Plan changes, etc) are currently being accepted in the `scheduled` state, and will be automatically queued and actioned at a later time when the downstream provider becomes available.
Jan 16, 12:38 PST
Jan 15, 2019

No incidents reported.

Jan 14, 2019
Australia Inbound SMS Delivery Delay
Resolved - The issue with inbound SMS sent to some of Twilio’s Australia phone numbers has been resolved. All systems are operating normally.
Jan 14, 22:13 PST
Update - We are continuing to investigate this issue.
Jan 14, 19:56 PST
Update - We are continuing to investigate this issue.
Jan 14, 19:48 PST
Investigating - Australia Inbound SMS Delivery Delay

We are experiencing an issue with the receipt of inbound SMS sent to some Twilio Australia phone numbers. The messages are experiencing delays and are currently queued for delivery. Our engineers are working with our carrier partner to resolve the issue and will provide additional information as it becomes available.
Jan 14, 19:33 PST
Delivery Issues on Indonesia Hutchinson
Resolved - All systems are operating normally at this time.
Jan 14, 12:30 PST
Monitoring - A fix has been implemented and we are monitoring the results.
Jan 14, 11:46 PST
Investigating - We are experiencing an issue with delivery of outbound SMS to Hutchinson handsets in Indonesia. Our engineers are working with our carrier partner to resolve the issue and will provide additional information as it becomes available.
Jan 14, 10:08 PST
Jan 13, 2019

No incidents reported.

Jan 12, 2019

No incidents reported.

Jan 11, 2019
AT&T US Short Code Carrier Maintenance - Jan 10th 19:00 - Jan 11th 04:00 PST
Completed - The scheduled maintenance has been completed.
Jan 11, 04:00 PST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 10, 19:00 PST
Scheduled - AT&T (United States) will be conducting maintenance on their short code (A2P) platform on Thursday, January 10th at 19:00 (PST) until 04:00 (PST) on Friday, January 11th. During this time, customers may experience inbound and outbound message delays via short codes to and from AT&T handsets for SMS and MMS. Long Code SMS is not expected to be affected.

Carrier maintenance period:
US Pacific: 1/10/2019 19:00 - 1/11/2019 4:00
US Central: 1/10/2019 21:00 - 1/11/2019 6:00
US Eastern: 1/10/2019 22:00 - 1/11/2019 7:00
UTC: 1/11/2019 03:00 - 12:00
Jan 9, 09:12 PST
Jan 10, 2019
Conference Hold Event Failing
Resolved - The issue affecting conference hold functionality has been resolved.
Jan 10, 21:33 PST
Identified - We are working on fixing issues regarding placing participants on hold using the Conference API.
Jan 10, 20:18 PST
Conference Hold Event Failing
Resolved - Conference hold is now working properly.
Jan 10, 19:34 PST
Identified - We have identified the root cause and deployed a fix for the issue. Will update once we confirm that the problem has been resolved.
Jan 10, 19:30 PST
Investigating - We are investigating reports of problems placing participants on hold using the Conference API. We will report more details shortly.
Jan 10, 19:19 PST
AT&T US Short Code Carrier Maintenance - Jan 9th 19:00 - Jan 10th 04:00 PST
Completed - The scheduled maintenance has been completed.
Jan 10, 04:00 PST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 9, 19:00 PST
Scheduled - AT&T (United States) will be conducting maintenance on their short code (A2P) platform on Wednesday, January 9th at 19:00 (PST) until 04:00 (PST) on Thursday, January 10th. During this time, customers may experience inbound and outbound message delays via short codes to and from AT&T handsets for SMS and MMS. Long Code SMS is not expected to be affected.

Carrier maintenance period:
US Pacific: 1/9/2019 19:00 - 1/10/2019 04:00
US Central: 1/9/2019 21:00 - 1/10/2019 06:00
US Eastern: 1/9/2019 22:00 - 1/10/2019 07:00
UTC: 1/10/2019 03:00 - 12:00
Jan 9, 09:07 PST
United States Cellular Corp US Short Code, US Toll-Free Carrier Maintenance
Completed - The scheduled maintenance has been completed.
Jan 10, 02:00 PST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 9, 23:00 PST
Scheduled - Please be advised that US Cellular will be performing an emergency maintenance activity as per the below schedule. Inbound and Outbound SMS messaging for US toll-free and US short codes will be delayed for approximately 30 minutes during the maintenance window.
Carrier maintenance period:
UTC: 01/10/2019 07:00 - 01/10/2019 10:00
US Pacific: 01/09/2019 23:00 - 01/10/2019 02:00
US Central: 01/10/2019 01:00 - 01/09/2019 04:00
US Eastern: 01/10/2019 02:00 - 01/09/2019 05:00
Jan 9, 18:20 PST
Jan 9, 2019
United States Cellular Corp US Short Code, US toll-free Carrier Maintenance - Thursday 10 January 2019 07:00 GMT - Thursday 10 January 2019 10:00 GMT
Resolved - This incident has been resolved.
Jan 9, 18:10 PST
Identified - Please be advised that US Cellular will be performing an emergency maintenance activity as per the below schedule. Inbound and Outbound SMS messaging for US toll-free and US short codes will be delayed for approximately 30 minutes during the maintenance window.
Carrier maintenance period:
UTC: 01/10/2019 07:00 - 01/10/2019 10:00
US Pacific: 01/09/2019 23:00 - 01/10/2019 02:00
US Central: 01/10/2019 01:00 - 01/09/2019 04:00
US Eastern: 01/10/2019 02:00 - 01/09/2019 05:00
Jan 9, 17:28 PST
SMS Delivery Delays to Kyivstar, Ukraine
Resolved - The operator has confirmed that they have resolved the issue causing SMS delivery delays to their network. We are now observing full and stable recovery for SMS sent to Kyivstar, Ukraine.
Jan 9, 03:54 PST
Investigating - We are observing SMS delivery delays for SMS sent to the Kyivstar network in Ukraine. We are working with our carrier partners to resolve the issue and will provide an update as soon as we have more information.
Jan 8, 23:17 PST
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