Summary
In this article, you will learn why 10DLC (10-digit long code) is required for sending text messages to patients from your practice. 10DLC is a US carrier and regulatory standard for business (A2P) SMS. Barti uses it so your appointment reminders, intake form links, and other messages are delivered reliably and stay compliant.
Important Note: US carriers can block or filter SMS sent from unregistered numbers. Completing 10DLC registration (handled during Barti onboarding) ensures your practice's messages reach patients.
1. What is 10DLC?
10DLC means 10-digit long code—a standard local phone number (e.g. (555) 123-4567) used to send SMS. In the US, when a business sends texts to customers or patients (called A2P—application-to-person messaging), carriers and industry rules require that business to register its Brand and Campaign through The Campaign Registry (TCR). That process is 10DLC registration.
2. Why is 10DLC needed?
Carrier requirements: Major US carriers (AT&T, Verizon, T-Mobile, etc.) require 10DLC registration for business SMS. Unregistered traffic can be blocked or heavily throttled, so your messages may not reach patients.
Consumer protection: 10DLC helps reduce spam and fraud by tying messages to a verified business. Patients can see who is messaging them and how to opt out (e.g. reply STOP).
Compliance: The Cellular Telecommunications Industry Association (CTIA) and carriers set the rules. Non-compliance can lead to blocked messages or fines.
Trust and deliverability: Registered, verified business messaging is more likely to be delivered and trusted by recipients.
3. What does Barti do for 10DLC?
Registration: Barti works with Twilio to complete 10DLC registration for your practice during onboarding. This ties your organization (and, when applicable, your business entity/EIN) to a registered Brand and Campaign so your SMS is compliant.
Compliance disclaimer: When a patient receives their first text from your practice (e.g. an intake form link or reminder), they may also receive a one-time compliance message. That message explains how your practice will use the number and includes opt-out instructions (e.g. Reply HELP for help, STOP to opt out). This is required for US SMS and is sent automatically only once per phone number.
Timing: 10DLC registration can take up to a few weeks depending on your plan and carrier review. For details, see Barti Onboarding Integration Timelines.
4. Where can I learn more?
Twilio (Barti's SMS provider): SMS compliance and A2P 10DLC in the US
Twilio docs: Programmable Messaging and A2P 10DLC
If you have any questions, please refer to Barti's Help Center or create a support ticket at support.barti.com.