10DLC Knowledge Base

Clear guides and checklists to help you stay compliant and improve deliverability.

Quick Compliance Tips

Identify your brand in the first message.
Include STOP instructions for promotional programs.
Use branded or first-party links; avoid public shorteners.
Do not send SHAFT content (Sex, Hate, Alcohol, Firearms, Tobacco).
Capture and store explicit consent before messaging.
Honor opt-out requests promptly across the program.

Getting Started

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What Is 10DLC?

What 10DLC is, why it exists, and how it differs from short codes and toll-free numbers.

Beginner5 min

CTIA Messaging Guidelines

Consent requirements, brand identification, STOP/HELP behavior, and content restrictions.

Beginner8 min

Pre-Send Compliance Checklist

Quick checks to reduce blocks, complaints, and carrier fees before you send.

Beginner4 min

Ready to Check Your Messages?

Use our free compliance checker to validate SMS campaigns before sending and avoid costly mistakes.

Try Compliance Checker Get the Chrome Extension