What is A2P 10DLC?
A2P 10DLC refers to a system in the United States that allows businesses to send Application-to-Person (A2P) type messaging via standard 10-digit long code (10DLC) phone numbers.
Frequently Asked Questions
Do I need to register?
Yes, if you send SMS or MMS to U.S. phone numbers using long code numbers, you need to register for A2P 10DLC.
If you do NOT Send Messages to US Numbers
US A2P 10DLC registration is not required, you can continue messaging as usual.
If you do Send Message to US Numbers
Your registration options will depend on your Tax ID status, volume, and use case. Use the tables below to determine your Brand Type and Campaign Use-Case:
Step 1 - Brand Registration
| Type | Tax ID (EIN) | MSG Volume | Comment |
| Sole Proprietor | No | Up to 3000 to US, based on hard limit of 1000 per day to T-Mobile | Users in the U.S. / Canada without a Tax ID |
| Low Volume Standard Brand | Yes | Under 6000 segments per day | |
| Standard Brand | Yes | Over 6000 segments per day |
Step 2 - Campaign Registration
| Use-Case | Resources | Comment |
| Standard | Refer to our Use Case Support Article for more information before proceeding | |
| Special | Refer to our Special Use Cases Guide for more information before proceeding | Require additional carrier approval or specific registrations (e.g., political organizations) |
How do I register?
Registration is done through the purchase number feature within Pabau.
How long does it take to get registered?
A2P 10DLC registration is a multiple-step process that includes registering a Business Profile, a US A2P Brand, and a Campaign use case.
Brand registration can typically be completed in a few minutes (in some cases, may take up to 24 hours) if you've already collected all of the required information. For example, if you are registering a US-based business, you should ensure you have your Employer Identification Number (EIN) ready when you begin registration. However, in the event that there is a discrepancy with the information you provide, a manual review may be required for Secondary Vetting which can take up to 7 days. To avoid this please see A2P 10DLC Brand Approval Best Practices.
All A2P Campaign registrations are subject to a vetting process. Registration currently takes about 7 business days for standard use cases. Please account for this vetting time when registering and for more information visit our FAQ on A2P 10DLC Campaign Vetting FAQ.
If your vetting remains in progress after 10 days please feel free to reach out to Twilio Support.
What pricing and fees are associated with the A2P 10DLC service?
For an overview of registration costs and per-message carrier fees associated with A2P 10DLC, please see What pricing and fees are associated with the A2P 10DLC service?
What message sending throughput (MPS) do I get?
Message throughput (MPS) will be allocated per registered Campaign Use Case. For many customers, A2P 10DLC will offer much higher throughput than the traditional 1 MPS for long code messaging, without the requirement of using additional numbers to get higher throughput.