Updated A2P 10DLC Phone Number Registration Events

We’ve made an important update to A2P 10DLC Phone Number Registration events in Twilio Event Streams — now including the Messaging Service SID in all related events.

With this enhancement, you can directly identify which A2P Campaign a phone number is associated with by referencing the messaging_service_sid field in the 2.0 schema version. This improves traceability and helps streamline debugging, monitoring, and automation workflows tied to number registration.

The following Event Streams now include the messaging_service_sid field:
- com.twilio.messaging.compliance.number-deregistration.pending
- com.twilio.messaging.compliance.number-deregistration.successful
- com.twilio.messaging.compliance.number-registration.pending
- com.twilio.messaging.compliance.number-registration.successful

To learn more about A2P Notifications through Event Streams , check out our guide docs.