You require a dedicated number if you wish to receive replies to SMS messages you send (i.e., two-way communication). You can choose between using a long number or a short code.

A short code is a memorable 5- or 6-digit number that is ideal if you want to receive replies and it is important that people easily remember your number (e.g., SMS marketing campaigns, lead generation, and promotions).

Note that short codes are country-specific and can't be used if you want to send and receive international messages. Short codes are registered by a national registry and can either be random (any numbers) or vanity (specific numbers chosen by you).

It requires an application process that may take up to 16 weeks to process. If you are on one of our paid packages, Clickatell will assist you in applying for a short code should you wish to use one.

Also see:

• How do I apply for a short code?

• Can I use a short code to send international messages?