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How SMS Short Codes Work: A Step-by-Step Explanation

Posted: Sat Jan 18, 2025 7:20 am
by tanjimajuha20
You should note however that in many countries, most carriers have discontinued shared short codes. In the US for example, mobile operators now require users to migrate shared short codes to either a dedicated short code or a ten-digit long code (10DLC).

Dedicated codes indonesia telegram do not require a dedicated keyword, and are for the exclusive use of a single company. With a dedicated code, SMS traffic goes directly to your account – and you can choose the digits that make up the short code. Typically, this might be a combination of numbers that spells out a word associated with your brand or industry. Alternatively, you can opt for a random code, which is a combination of random numbers assigned by the operator. This is usually the cheaper option.

Zero-rated short codes are a special class of code which companies can use for two-way interactions with their customers. Here, the customer does not pay the cost of sending messages to the company – rather, the business takes on this liability. Organizations typically use zero-rated short codes for opting out, as many regional jurisdictions require free opt-out for business text messaging.


With dedicated short codes now being the norm, businesses will typically lease a short code for a set period, such as three months, six months, or a year. The application for a short code takes place through your SMS service provider.

In the US for example, businesses must apply to the US Short Code Administration before leasing a short code. The application process typically involves providing information about how the short code will be used, and what types of messages the company will send.

As an alternative to applying directly, a business may engage with an SMS API (Application Programming Interface) provider or aggregator, which undertakes to acquire a short code on their behalf.