U.S. A2P 10DLC FAQs:

The Same Number Just Got Better

Twilio is your strategic partner as changes in business messaging improve consumer trust and increase the ROI of each message. 


We have compiled a set of resources with everything you need to prepare for the new A2P 10DLC requirements. You can find answers to some frequently asked questions below or click "get more info" to access detailed resources. 

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What A2P 10DLC Registration Means for You

A2P 10DLC and US Business Messaging

What is U.S. A2P 10DLC?

A2P 10DLC refers to a system in the United States that allows businesses to send Application-to-Person (A2P) type messaging via local 10-digit long code (10DLC) phone numbers. Carriers in the US consider all Twilio traffic to be A2P. 

A2P 10DLC offers businesses the opportunity to engage with their customers using a verified local identity. New A2P dedicated routes will offer increased throughput, improved deliverability, and ensure SMS is a channel for long term customer engagement, using the same 10DLC phone numbers.

In order to protect consumers and create a trusted ecosystem with high customer engagement, AT&T and T-Mobile are requiring companies to register who they are and what they are sending via SMS and MMS -- for both current and future local long code numbers. 

What do I need to do?

If you do not send messages via local long codes within the United States, you do not need to do anything. 

If you do send messages via long codes in the U.S., you will need to register. Twilio empowers you to register for all KYC initiatives, including A2P 10DLC through Twilio’s Trust Hub.

We are partnering with carriers on a phased onboarding approach. Once registration opens for you, you will need to:

  1. Register your Primary Customer Profile within Twilio’s Trust Hub in the Console. This will take 1-3 business days for approval.
  2. Register your Brand for U.S. A2P Messaging. This will take minutes.
  3. Create and register your Campaigns. This will take minutes. 

Why do I need to do this?

SMS is one of the most trusted channels businesses have to communicate with their customers. SMS messages have a 98% open rate (90% of those messages will be opened within 3 minutes of delivery), and a 45% average response rate. However, as business messaging has scaled, spam and unwanted messages have increased -- mostly through traditional P2P (person-to-person) long codes and shared short codes. Over the past year, the FTC has documented a 1.3x increase in texting spam complaints. 

In order to maintain a trusted ecosystem, carriers need transparency to determine what is being sent and from who. These new regulations and registration requirements will protect end users from spam, and enable businesses to reliably send messages via local 10-digit long codes. 

Why A2P 10DLC?

A2P 10DLC enables your business to take advantage of a verified ecosystem, with higher throughput and deliverability, and combines it with the power of a local identity. Create a personalized, high engagement SMS experience with your local customers.

When do I need to register?

For our most updated timelines and registration requirements please view our support article (click here).

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Access more resources and information about A2P 10DLC

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