About Us

Learn more about the U.S. Short Code Directory.

About U.S. Short Code Directory

For a business to text message a consumer on their mobile phone, they have to use a unique 5-6 digit phone number called a short code. The U.S. Short Code Directory has assumed responsibility for the indexing of these unique phone numbers, creating the industry's only public address book.

Without this public service, there would be no public central repository for short code ownership information. This service is critical to the daily operation of business to consumer mobile messaging.

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