Twilio 10DLC Registration

All 10-digit long code (10DLC) phone numbers that send text messages to mobile phones in the US must be registered for Application-to-Person (A2P) messaging with US carriers. Twilio manages the 10DLC Registration process as follows:

• Each customer (business) must register their Brand. If you are an ISV selling a solution to multiple customers, each of your customer’s brands must be registered individually.
• Each Brand must register one or more Campaigns (use cases).
• Each Campaign must be associated with a Messaging Service. One Campaign per Messaging Service.
• All phone numbers in a Messaging Service number pool will be associated with its Campaign.

Registration methods

Twilio offers two methods for registering for 10DLC A2P:

1. Trust Hub Console - enables you to register brands and campaigns through a web interface.
2. Trust Hub API - can be used to register brands and campaigns programatically. There are two APIs to choose from:
   • Starter Registration - For your low-volume customers sending less than 3,000 SMS per day.
   • Standard Registration - For your customers sending greater than 3,000 SMS per day.

For more information, see Twilio’s A2P 10DLC docs.