Short alpha or numeric sequences, ranging between 3 and 8 characters in length, enable businesses to send and receive SMS text messages from anywhere in the world.
Shared short codes are TeleSign-assigned SenderIDs available to customers for use from a managed pool of verified, high-quality numbers that can be shared across many brands and are typically available immediately, in select countries.
Dedicated short codes are available for purchase and enable customers to send and receive SMS from a familiar, consistent, custom identifier. Dedicated short codes are assigned to customer accounts for exclusive use to send and receive SMS messages. Dedicated short codes are highly recommended for customers with a database bigger than 500 numbers for one off sends, and for regularly scheduled messages to their database, no matter what the size.
Some countries require the business to pre-register and/or meet certain license requirements that may require additional costs, however certain use cases may be eligible for pre-approved dedicated short codes, allowing immediate launch of dedicated short code programs.