A short code, often a five-digit number, serves as an address for sending and receiving SMS and MMS messages. This method provides a dedicated, easily recognizable communication channel for businesses and organizations to interact with customers or members. As an example, an individual might send the word “JOIN” to a specific five-digit number to subscribe to a text messaging service or promotion.
The use of short codes enables efficient communication and offers several benefits, including improved brand recognition, increased customer engagement, and the ability to deliver targeted marketing campaigns. Historically, these numbers became prevalent as a convenient and cost-effective way for businesses to reach large audiences via mobile devices, bypassing the limitations and costs associated with traditional phone numbers.