What happens if I try to send SMS without completing 10DLC registration?

10DLC (10-Digit Long Code) registration is a mandatory compliance requirement for businesses sending SMS messages using U.S. long code numbers. Mobile carriers in the United States enforce strict regulations to prevent spam and ensure transparent messaging practices.

If SMS messages are sent without completing 10DLC registration, carriers may block, filter, or delay those messages—resulting in failed delivery and poor customer communication. Completing 10DLC registration ensures uninterrupted SMS delivery, regulatory compliance, and higher trust with U.S. carriers.

In accordance with industry regulations and mobile carrier requirements in the United States, 10DLC registration is a mandatory step for businesses wishing to send local SMS traffic using U.S. long code numbers.

If your business attempts to send SMS messages using an unregistered 10DLC number, there is a high likelihood that mobile carriers will block, filter, or significantly delay message delivery. This can result in your messages not reaching their intended recipients, which may negatively impact communication with your customers or clients.

To ensure reliable message delivery and full compliance with carrier guidelines, it is essential to complete the 10DLC registration process prior to initiating any SMS campaigns.

For more Queries, reach out to us at support@frejun.com or Live chat support through your FreJun Account

Sign up with FreJun and activate your free trail