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SMS registration for US numbers (A2P 10DLC)

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Register an A2P 10DLC campaign so your US numbers can send SMS, what the registration needs, and how long it takes.

US numbers can receive SMS straight away. To send SMS from a US number, US regulations require your business and your messaging to be registered first. This is called A2P 10DLC (application-to-person messaging over standard 10-digit numbers). Until it’s done, the number shows SMS: Incoming messages only, with the link A2P is required to send SMS.

How it works

Section titled “How it works”
  • You register an A2P campaign: a description of who you are and what kind of messages you send.
  • One campaign covers up to 49 of your US numbers.
  • Registration with the US messaging bodies can take up to six weeks.
  • A monthly campaign fee and an activation fee apply, plus an SMS plan for US A2P messaging. Ask the support team for the current prices.

What you need

Section titled “What you need”
  • Your business’s legal details, and whether it’s a private company, a publicly traded company, or a charity or non-profit organisation.
  • Your industry (vertical), and the kind of messages you send, such as account notifications, customer care, delivery notifications, two-factor authentication codes or marketing.
  • How people agree to receive your messages (opt-in). Your opt-in message must:
    • name your business;
    • say how often you’ll send messages;
    • say “Message and data rates may apply”;
    • tell people they can reply STOP to opt out and HELP for help.

Your messages, opt-out replies and help replies must also name your business. Follow the CTIA Messaging Principles for business messaging.

Register

Section titled “Register”
  1. Ask the support team for the A2P 10DLC Registration Form: raise a support ticket.
  2. Fill it in and send it back to the support team, with the US numbers you want to use.
  3. The support team submits the registration and tells you when it’s approved.

Once the campaign is approved, route the numbers for SMS: see SMS to Webphone users and SMS to email.

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