How can I associate Twilio numbers to an A2P 10DLC Campaign?

Twilio phone numbers can be associated to an A2P 10DLC campaign at any time. This guide explains the process for adding numbers to your campaign during registration, and after it goes live.

Notice: Before associating your Twilio numbers to an A2P 10DLC Campaign, you’ll need to make sure that you have successfully registered your Business Profile and Brand(s) as described in How do I register to use A2P 10DLC messaging.

Associating numbers during Campaign Use Case registration

Associating your phone numbers can be done while registering your A2P Campaign Use Cases or after a Campaign has been successfully registered. During the Campaign registration process you will need to link each Campaign to a Messaging Service, and you have the option to add your phone number(s) at that time. You can find step-by-step instructions on how to do this in our A2P 10DLC Onboarding documentation.

Associating numbers after Campaign Use Case registration

Once your campaign is registered, any numbers that you add to that Messaging Service will be automatically associated with the Campaign. For help adding numbers to a Messaging Service, see How Do I Add Numbers to a Messaging Service.

Sending messages using an A2P Campaign Use Case

Once you add numbers to your Messaging Service/Campaign, it is not required to include the Messaging Service SID in your API requests to send messages. As long as those numbers remain in the Messaging Service, any messages that you send using those numbers will be associated with the registered Campaign.

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