If your business sends SMS messages to customers in the U.S., then A2P 10DLC is something you can no longer ignore. Whether you’re sending appointment reminders, marketing campaigns, or follow-ups, understanding A2P 10DLC is key to making sure your messages are delivered reliably and stay compliant with carrier regulations.
What Does A2P 10DLC Mean?
A2P stands for Application-to-Person messaging, and 10DLC refers to a 10-digit long code, a standard U.S. phone number used to send text messages. A2P 10DLC is the sanctioned system for businesses to send SMS via standard local numbers.
Before A2P 10DLC, businesses were often limited to short codes or used long codes not meant for high-volume messaging, which led to message filtering or outright blocking. With A2P 10DLC, carriers now offer a reliable and approved way for businesses to use local numbers for bulk and automated texting.
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Why Was A2P 10DLC Introduced?
A2P 10DLC was introduced to reduce spam, improve message deliverability, and provide a sanctioned framework for businesses to use messaging responsibly. Carriers like AT&T and T-Mobile wanted to ensure that high-volume messaging doesn’t overwhelm users with unsolicited messages.
By requiring registration and brand vetting, the system adds a layer of accountability and helps ensure that only legitimate businesses can access these tools.
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How Does A2P 10DLC Work?
Brand Registration: You register your business and its legal information through The Campaign Registry (TCR).
Campaign Registration: You define your use case, such as alerts, promotions, or customer service.
Number Linking: You link one or more local numbers (10DLC) to the registered campaign.
Carrier Vetting: Carriers assess your trust score, which affects your daily message limits.
Once approved, you’re authorized to send messages through compliant SMS platforms like Twilio, GoHighLevel, or LeadConnector.
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Benefits of A2P 10DLC for Your Business
Improved Deliverability: Messages are less likely to be blocked or flagged as spam.
Higher Trust: Carriers and customers recognize your business as legitimate.
Local Presence: Use a local area code to build familiarity and trust.
Cost-Effective: Often cheaper than short codes with better engagement than toll-free numbers.
Is A2P 10DLC Mandatory?
Yes. As of 2023, major U.S. carriers require businesses to register their messaging campaigns under the A2P 10DLC framework. Non-compliant messages may be blocked or incur hefty penalties.
What Happens If You Don’t Register? If you continue to send bulk or automated SMS through unregistered numbers, your messages are likely to be filtered, blocked, or penalized by carriers. Worse, it could harm your sender reputation and overall communication strategy.
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How to Get Started with A2P 10DLC
If you’re using platforms like GoHighLevel or Twilio, you can register directly within the platform. The process usually includes:
Submitting business info
Declaring your messaging use case
Verifying your numbers
Need help with the process? I offer A2P 10DLC registration services to ensure your brand gets approved and your messages reach your audience.
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A2P 10DLC is not just a compliance measure, it’s a smarter, more trustworthy way to communicate with your audience. By registering your brand and campaigns properly, you enhance your SMS marketing, protect your reputation, and stay ahead of the curve.
If you’re ready to register or want to ensure you’re set up the right way, let’s talk.
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