Short codes are five-digit numbers that are easy to remember, such as 95001. It’s a versatile and simple method of sending and receiving SMS text messages to and from customers. Customers can send text messages by typing the appropriate keyword and addressing them to the business’s 5 digit SMS short code. Short codes are often used for value-added services such as charitable donations, telephone services, ringtone ordering, and voting. Short Codes are of following two types,