What is A2P 10DLC Registration?
A2P 10DLC (Application-to-Person 10-Digit Long Code) registration is a requirement introduced by U.S. mobile carriers in early 2022. Its purpose is to ensure that only verified businesses send SMS messages, helping reduce spam, phishing, and fraudulent activity.
Key Information
You must complete your A2P 10DLC registration before sending SMS messages through Practice by Numbers.
Fees:
$4 Brand Registration Fee
$20 Campaign Fee (charged once by The Campaign Registry, or TCR)
$10 Monthly Campaign Fee
Practice by Numbers will submit your information to The Campaign Registry on your behalf once you provide your business details.
What is TCR, and why do you need to register?
The Campaign Registry (TCR) is an organization that makes sure business text messaging follows laws like the Telephone Consumer Protection Act and FCC rules. It helps reduce spam and prevents businesses from getting fined or having messages blocked.
Registration with TCR is required for all application-to-person (A2P) text messages sent using 10-digit business phone numbers (10DLC). If a number is not registered, major carriers such as Verizon, AT&T, and T-Mobile will block the messages.
How to Register
Important Notes
Ensure your business information exactly matches what’s on file with your state/tax registration.
Submissions with incorrect or mismatched details may be rejected.
A $4 resubmission fee applies for each correction or resubmission.
Open Settings
Click the Menu icon in the top-right corner of Practice by Numbers.
Select New Settings > Communication Settings > A2P 10DLC Settings.
Enter Your Business Information
Legal business name
Address
Tax ID/EIN
Phone number
Website address
Practice by Numbers will securely submit your information to TCR on your behalf.
Website Verification
Your website must meet the following requirements:
Your website must be fully active and complete. | Your website should be completed before the TCR registration is submitted.
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Your website must include a dedicated Privacy Policy page. | Your website must include a dedicated Privacy Policy page.
To meet TCR requirements, your Privacy Policy must:
Additional Privacy Policy guidance:
Additional notes:
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Your website must be secure and use HTTPS (not HTTP). | Your website must be considered secure and start with HTTPS (e.g. https://practicenumbers.com/).
If your site is not secure, contact your website platform or developer for help. |
Business Information | Your website must include basic business details, such as:
This information is usually found on an “About Us” or “Contact Us” page. |
SMS Consent Disclosure | Any form that collects a phone number must clearly explain what text messages the user is agreeing to receive. This disclosure must appear on every form that collects phone numbers. Your SMS disclosure must include:
If a checkbox is used, it must be unchecked by default.
Example SMS disclosure: |
Please note that TCR registration requirements continue to evolve as new violations and standards are identified. These best practices should not be seen as a guarantee of approval. Instead, they serve as a baseline that reflects the general expectations for compliant, high-quality text messaging. For any questions about privacy or SMS compliance, consult your business’s legal advisors.