When someone asks ‘What is my SMS code’, normally he is asking:

a. What is my SMS verification code?
b. What is my SMS long code?
c. What is my SMS short code?
For a circumstance, an SMS verification code is received on the phone sent by the merchants to verify the identity of the recipients.In this way, the merchants can verify whether the phone number is valid.
For b circumstance, an SMS long code can also be known as Response Numbers, Virtual Numbers, or Inbound Numbers. It looks like a standard phone number, and it is designated for the business to send online text messages. It can be used as a standard phone number.
For c circumstance, an SMS short code is a compact number that is shorter than a standard phone number so that people can better remember it. It is used for businesses to send bulk messages for advertisements, promotions, and customer services.
