About Codabar Barcodes
Codabar is a linear barcode symbology developed in 1972 by Pitney Bowes. It is a self-checking barcode format that uses start and stop characters (A, B, C, or D) to define the beginning and end of each barcode. Codabar is also known by several other names, including NW-7, Monarch, and Code 2 of 7.
Although newer barcode standards have largely replaced Codabar in many applications, it remains in active use within specific industries that have established workflows built around this format.
Codabar Character Set
Codabar supports the following characters:
- Numeric Digits: 0 through 9 for encoding numeric data.
- Special Characters (6): The symbols
- $ : / . +can be included in the barcode data. - Start/Stop Characters (4): The letters A, B, C, and D are used exclusively as start and stop delimiters. Each barcode must begin and end with one of these characters.
Common Use Cases
- Library Book Tracking: Many libraries use Codabar barcodes on book labels and membership cards for circulation and inventory management.
- Blood Bank Sample Labeling: Codabar is widely used in blood banks and medical laboratories to label blood bags, samples, and test tubes for reliable identification.
- FedEx Airbills (Legacy): Codabar was historically used on FedEx airbill tracking labels, though newer systems have since transitioned to other formats.
- Photo Finishing Labs: Photo processing labs have used Codabar to track film rolls and print orders through their workflow.
Related Barcode Types
Explore other barcode formats for different use cases:
- Code 39 Barcode Generator — A versatile alphanumeric barcode commonly used in manufacturing, military, and healthcare.
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