For customers who may have multiple messaging use cases, below is our guidance on how to register multiple use cases for A2P 10DLC. 

Can I use my phone numbers for multiple Campaigns?

Phone numbers can only belong to one A2P 10DLC Campaign at a time. Twilio manages this by requiring your Twilio numbers to be associated with an approved Messaging Service in order to belong to a Campaign. You may move numbers between different Campaigns, but a given number can only belong to one Campaign at a time. 

What if I have phone numbers used across different use cases?

If your phone numbers are being used for different use cases (i.e. 2FA and Customer Care) you can register for a “Mixed” Campaign use case. Please keep in mind that a “Mixed” use case is likely to have a lower throughput than a Declared use case, and slightly higher cost per message due to higher carrier fees (see throughput info and pricing info). If you do a large volume of messaging, it may make sense to separate your messaging use cases into separate Campaigns.

Where can I find a full list of Campaign types and use case descriptions? 

You can find a full list of Campaign types and use case descriptions in our List of Campaign Use Case Types for A2P 10DLC Registration.

How do I register for a “Special” Campaign use case?

Registering for a Special Campaign is very similar to Standard Campaigns, although some additional steps may be required. For details, please see Special Use Cases for A2P 10DLC.

How do I verify that all my use cases are successfully registered?

Please see How do I check that I have completed US A2P 10DLC registration?