A2P SMS Compliance: Get Your Phone Numbers Registered

A2P (Application-to-Person) SMS compliance is now required for businesses sending text messages in the United States. Here's what you need to know.

What Is A2P 10DLC?

A2P 10DLC is a system that registers your business and phone numbers with carriers:

• A2P — Application-to-Person messaging
• 10DLC — 10-Digit Long Code (standard phone numbers)

Why Registration Matters

Without registration:

• Messages may be blocked or filtered
• Delivery rates drop significantly
• You risk carrier penalties
• Customers don't receive your texts

With registration:

• Better deliverability
• Higher throughput limits
• Carrier trust
• Compliant messaging

Compliance Requirements

Opt-In Process

You must have clear opt-in from contacts:

• Checkbox on forms
• Clear language about what they're signing up for
• Easy opt-out instructions

Message Content

Include required elements:

• Business identification
• Opt-out instructions (STOP to unsubscribe)
• No prohibited content

Privacy Policy

Your website needs a privacy policy that covers:

• How you collect phone numbers
• How you use them
• How to opt out

Getting Compliant in HighLevel

Step 1: Register Your Brand

Submit your business information for verification.

Step 2: Register Your Campaign

Describe how you'll use SMS (marketing, transactional, etc.).

Step 3: Register Phone Numbers

Link your phone numbers to your approved campaign.

Step 4: Update Your Forms

Add proper opt-in language to all forms collecting phone numbers.

See Also

• HighLevel — The platform
• HighLevel SMS — Text messaging features
• SMS compliance — Detailed requirements
• lead generation — Collecting contacts properly