What is 10DLC?

10DLC (10-Digit Long Code) is a messaging standard developed for businesses operating in the United States. It enables companies to send SMS (Short Message Service) and MMS (Multimedia Messaging Service) using local, 10-digit phone numbers.

Unlike short codes or toll-free numbers, 10DLC numbers are tailored for Application-to-Person (A2P) communication, making them ideal for sending appointment reminders, alerts, promotional messages, and customer service notifications.

The 10DLC system is regulated by U.S. mobile carriers and governed by organizations such as The Campaign Registry to prevent spam and misuse. Businesses must register their campaigns and use cases to ensure compliance, optimize message throughput, and maintain trust and deliverability with their audience.

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