Code 39 (also referred to as Code 3 of 9, LOGMARS, HIBC) can encode uppercase letters, numbers, and a few special characters such as the minus, period, space, asterisk, dollar sign, forward slash, plus and percent signs. Code 39 is a self-checking barcode type, meaning that a check digit is not required for a barcode scanner to read it, although many implementations include a check character to further assure data integrity.
Application: 39 barcode card is usually used as telecom card, phone card, prepaid card, member card, VIP card, loyalty card, etc