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Linear (1D) · since 1974

Code 39

Automotive (AIAG), defence (LOGMARS), ID badges, inventory

The first alphanumeric barcode. Each character is nine elements, three of them wide (hence ‘3 of 9’), and the asterisk marks start and stop. Simple and self-checking, but wide.

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At a glance

Introduced
1974
Created by
David Allais and Ray Stevens at Intermec
Characters
A–Z, 0–9, space and - . $ / + %
Length
Variable
Check
Optional Mod 43
Capacity
Limited by width

Example: CODE39

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