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A2P Text Messaging 2025 Approval Guide
A2P 10DLC might sound like technical jargon, but in 2025, it’s an essential piece of doing business if you’re using text messages to reach your audience in the U.S.
It’s no longer enough to just “have a number” and send messages. U.S. carriers require that your phone number, your business, and even your messaging intent are registered, reviewed, and approved. This shift is designed to reduce spam, improve deliverability, and make business messaging more secure for everyone.
Key Takeaways
- A2P 10DLC registration is mandatory for business texting in the U.S.
- Non-compliance leads to message blocking and higher carrier fees
- You need a live website, privacy policy, terms of service, and compliant forms
- Phone numbers must not be required on forms asking for SMS consent
- Approval depends on accurate business information and clear opt-in methods
What is A2P Text Messaging and Why It Matters in 2025
A2P (Application-to-Person) text messaging allows businesses to send SMS messages to customers using a local 10-digit phone number. But as of 2025, U.S. carriers like AT&T, T-Mobile, and Verizon are enforcing stricter guidelines to prevent spam and misuse.
If you’re not registered, your messages could get blocked or carry heavy fees. This makes A2P registration more than a good idea—it’s non-negotiable for any brand using text messaging to communicate with customers.
Step-by-Step A2P Registration Guide
1. Prepare a Compliant Website
- Your site must be live and functional.
- Include:
Business Name (matching your EIN registration)
Logo
Working Forms (with proper consent checkboxes)
Links to Privacy Policy & Terms of Service
Ensure all forms (website, funnel pages, calendars) requesting a phone number include:
- Two checkboxes:
One for Transactional SMS
One for Promotional SMS
Phone number field must be optional, not required.
2. Create Compliant Policies
Privacy Policy
Must clearly state you do not share user data, especially with affiliates or third parties.
Avoid high-risk language related to selling data.
Terms of Service
Add a dedicated SMS section covering:
Consent
Message frequency
Opt-out instructions (e.g., text STOP to unsubscribe)
Boilerplate templates are available from HighLevel, but they must be customized to your business.
3. Buy a Phone Number
4. Register Your Brand
Use your CP 575 IRS form details to ensure accuracy:
Legal Business Name (exact match)
EIN Number
Registered Business Address
Mismatched data is the #1 reason for registration failure.
5. Register Your Campaign
Include:
Use case (e.g., appointments + promotional offers)
Sample messages (e.g., appointment reminders, discounts)
Opt-in URLs and explanation of the opt-in process
Screenshots of forms, if needed, with proof of compliance

6. Activate Compliance Across All Forms
Ensure your forms—calendars, website, landing pages—all include:
Two opt-in checkboxes
- Optional phone field
- Links to privacy/terms
Failing on even one form can result in campaign rejection or suspension.

7. Set Up Automations
Create flows that:
- Respond to STOP/HELP
- Tag users opting in/out
- Alert your team for compliance
These automations help demonstrate compliance and enhance user experience.
A2P Messaging Pricing in 2025
One-Time Registration Fees
Item | Cost |
|---|---|
| Sole Proprietor Brand | $4.41 |
| Low Volume Standard Brand | $4.41 |
| Standard Brand | $48.51 |
| Campaign Use Case | $16.54 |
Monthly Campaign Fees
| Campaign Type | Monthly Fee |
|---|---|
| Low Volume Mixed | $1.70 |
| Standard Campaign | $12.00 |
| Sole Proprietor | $2.21 |
| Emergency Services | $5.50 |
| Charity/Nonprofit (501c3) | $3.30 |
Avoid These Common Mistakes
- Using “Company Name” placeholders in message samples
- Not including opt-in checkboxes on all forms
- Requiring the phone number field on forms
- Linking to a broken or placeholder website
- Forgetting to upload screenshots or opt-in proof
Pro Tips
- Use a Coming Soon page with all compliance elements if your main site isn’t ready.
- Review the LC Phone System pricing and registration fees before starting.
- Test everything, including opt-in links, before submitting your campaign.
Frequently Asked Questions
Yes. All businesses sending texts through 10DLC numbers must register—even for transactional messages.
Yes, as long as the form is compliant and used consistently across your site.
You’ll get feedback. Fix the issues (usually forms or privacy language) and resubmit.
Yes! HighLevel and similar CRMs allow you to track opt-in data with tags and automate segmentation.
A2P (Application-to-Person) text messaging allows businesses to send SMS messages to customers using a local 10-digit phone number. But as of 2025, U.S. carriers like AT&T, T-Mobile, and Verizon are enforcing stricter guidelines to prevent spam and misuse.
Conclusion
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