A short code number is a special five or six-digit telephone number typically used to send and receive text messages on an Application to Person (A2P) basis, where a computer or application sends a text message to many people at once. A long code is a standard phone number (usually ten digits) used to send and receive both voice calls and SMS messages. Toll free numbers are a subset of ten-digit long codes. Usually starting with an “800” or “888”, toll free numbers were originally designed for business landlines but now have the ability to text message. We answer all of your questions here.