Incident History

SMS Delivery Delays to CAMTEL Network in Cameroon

We are no longer experiencing SMS delivery delays when sending messages to CAMTEL Network in Cameroon. This incident has been resolved.

1742148721 - 1742172215 Resolved

SMS Delivery Delays to AWN/AIS Networks in Thailand

During investigation by our engineers, message delivery to the AWN/AIS Networks in Thailand is confirmed to be operating as expected due to the routing of international long code numbers to numeric Sender IDs required. Pre-registration of Alphanumeric Sender ID is suggested to optimize delivery. This incident has been resolved.

1742132353 - 1742136915 Resolved

Whatsapp Messages Are Not Delivered With Error 63021

We are no longer experiencing issues where outbound WhatsApp messages with media are not being delivered with error 63021. This incident has been resolved.

1742099211 - 1742107823 Resolved

Whatsapp messages are not delivered with error 63021

We've become aware of a potential issue with Whatsapp where messages are not delivered with error 63021. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

1742097000 Ongoing

SMS Delivery Delay to Brisanet Network in Brazil

We are no longer experiencing SMS delivery delays when sending messages to Brisanet network in Brazil. This incident has been resolved.

1742075878 - 1742120919 Resolved

SMS Delivery Delays to Etisalat/Moov Network in Niger

We are no longer experiencing SMS delivery delays when sending messages to Etisalat/Moov Network in Niger. This incident has been resolved.

1742056041 - 1742077416 Resolved

Intermittent Outages or Failed API Requests with Dialing Permissions

The intermittent outages or failed API requests with Dialing Permissions in our Voice API are operating normally at this time.

1741985271 - 1741998696 Resolved

SMS Delivery Report Delays to CAMTEL in Cameroon

We are no longer experiencing MMS/SMS delivery delays when sending messages to CAMTEL in Cameroon. This incident has been resolved.

1741964420 - 1741983059 Resolved

AccSec US Verizon API Issue

We are no longer seeing AccSec - US Verizon API Errors. This incident has been resolved.

1741919888 - 1741927898 Resolved

Incorrect Data on Deactivations API for 2025-03-05

Twilio has identified a large number of incorrect entries in the Deactivation API for March 5th, 2025. We are working with the carrier to identify the corrected list. To avoid further customer impact, we have removed the incorrect file until we can replace it with a corrected one.

When querying 2025-03-05 on the Deactivations API, you will receive a 20404 error response.

1741915408 - 1741916808 Resolved
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