Barcody 3 > Barcodes Index

ISSN

Valid Characters

0123456789

Length of Code

7

Checksum

Calculated automatically.

The ISSN barcode is also a special variant of the GTIN-13 code. The ISSN in principle is the ISBN for continuously released publications (e.g. magazines). The ISSN always has 8 digits. When transforming it into a barcode, the cyphers 977 are prefixed to the ISSN. Barcody does this automatically, so you have to enter only the first 7 digits of the ISSN.

The digits 11 and 12 of the GTIN-13 code usually stay unused but can be used for special or double volume tagging.