Code 93

The barcode symbology Code 93 was designed in 1982 by Intermec Technologies in order to provide a higher density and an improved security enhancement to its sister symbology, Code 39.

The Code 93 symbology is an alphanumeric, variable length barcode that is used primarily by the Canadian Postal service in order to encode supplementary delivery information. Code 93 employs two check digits and is designed to encode up to 26 upper case letters, 10 digits and 7 special characters.

Code 93 is divided into nine modules and has three bars and three spaces, with each bar and space being between 1 and 4 modules wide.