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Outage in Twilio

Delays with Phone Number Registration to A2P 10DLC

Resolved Minor
September 18, 2026 - Started 10 days ago - Lasted about 5 hours
Official incident page

Incident Report

Summary AI Generated

Twilio experienced a 4.7-hour incident where customers faced delays adding, deleting, or updating North American phone number registrations to A2P 10DLC campaigns, affecting the Phone Numbers and Trust Hub components. Engineers identified the root cause and deployed a fix in coordination with carrier partners, with full recovery confirmed by 5:00 PM PT on September 18, 2026. North American Toll Free numbers were not impacted, and the service returned to normal operation following the fix.

Our monitoring systems have detected a potential issue with delays with phone number provisioning. Our engineers have been alerted and are investigating. We will provide an update when we have more details.

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Latest Updates ( sorted recent to last )
RESOLVED 10 days ago - at 09/19/2026 12:00AM

The delays have been resolved and phone number registration to A2P 10DLC campaigns is operating normally at this time.

MONITORING 10 days ago - at 09/18/2026 11:00PM

Phone number registration to A2P 10DLC campaigns is now operating normally. We will continue to monitor for system stability. We'll provide another update in 1 hour or as soon as more information becomes available.

IDENTIFIED 10 days ago - at 09/18/2026 10:02PM

Our engineers have identified the issue impacting phone number registration to A2P 10DLC campaigns, and we have deployed a fix. At this time we are seeing recovery, but customers may still experience delays in adding, deleting, or updating number registration to A2P 10DLC campaigns. We recommend customers to not move North American phone numbers between Messaging Services. A remove or an add of a phone number would distrust the traffic on that number. This does not impact North American Toll Free numbers. We will provide another update in 2 hours or as soon as more information becomes available.

IDENTIFIED 10 days ago - at 09/18/2026 09:01PM

Our engineers have identified the issue impacting phone number registration to A2P 10DLC campaigns, and are working with our carrier partners to deploy a fix. At this time customers may experience delays in adding, deleting, or updating number registration to A2P 10DLC campaigns. We recommend customers to not move North American phone numbers between Messaging Services. A remove or an add of a phone number would distrust the traffic on that number. This does not impact North American Toll Free numbers. We will provide another update in 1 hour or as soon as more information becomes available.

INVESTIGATING 10 days ago - at 09/18/2026 08:01PM

We are investigating an issue affecting phone number registration to A2P 10DLC campaigns. At this time customers may experience delays in adding, deleting, or updating number registration to A2P 10DLC campaigns. We recommend customers to not move North American phone numbers between Messaging Services. A remove or an add of a phone number would distrust the traffic on that number. This does not impact North American Toll Free numbers. We will provide another update in 1 hour or as soon as more information becomes available.

INVESTIGATING 10 days ago - at 09/18/2026 07:31PM

We are aware of an issue affecting phone number registration to A2P 10DLC campaigns. At this time customers may experience delays in adding, deleting, or updating number registration to A2P 10DLC campaigns. Our team is actively investigating and we will provide another update in 1 hour or as soon as more information becomes available.

INVESTIGATING 10 days ago - at 09/18/2026 07:21PM

Our monitoring systems have detected a potential issue with delays with phone number provisioning. Our engineers have been alerted and are investigating. We will provide an update when we have more details.

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