Scheduled maintenance
Twilio Services
Issues related to Twilio’s Software
External Connectivity
Issues found outside of Twilio’s Network
System Metrics
SMS delivery degradation towards Mobifone Vietnam
Incident
Report for Twilio
Resolved
Mobile operators in Vietnam have informed us that they are filtering numeric non-registered senders towards the Mobifone network in Vietnam. Alphanumeric SenderID Pre-registration is required for Mobifone Vietnam. Messages with Pre-registered Alphanumeric SenderID are successfully delivered. Please contact Support to pre-register for Mobifone, Vietnam if you are sending messages with numeric non-registered senders. For more information, please review our SMS Guidelines for Vietnam:
https://www.twilio.com/guidelines/vn/sms
https://www.twilio.com/guidelines/vn/sms
Update
We continue to actively investigate into this issue with our carrier partner and will provide more updates as soon as we have additional information.
Update
We continue to actively investigate into this issue with our carrier partner and will provide more updates as soon as we have additional information.
Investigating
We are observing delivery degradation for SMS sent towards the Mobifone network in Vietnam. We are working with our carrier partners to resolve the issue and will provide an update as soon as we have more information.
This incident affected: CARRIER NETWORK (SMS, APAC).