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Retail (UPC/EAN/GS1) · since 1975
ISSN Magazines, newspapers and journals
Serial publications use the 977 prefix. The two digits before the check digit are free for the publisher, often the issue or price variant, and a 2- or 5-digit add-on can carry the issue number.
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At a glance
Introduced 1975
Created by ISO 3297, ISSN International Centre
Characters Digits 0–9
Length 13 digits as EAN-13 (prefix 977)
Check EAN-13 Mod 10; ISSN-8 uses Mod 11
Capacity 7 identifying digits + 2 variant digits Example: 9770317847001 Anatomy Start guard Digit 7 · L (odd parity) set · parity pattern LGGLGL encodes the leading 9 7 Digit 7 · G (even parity) set · parity pattern LGGLGL encodes the leading 9 7 Digit 0 · G (even parity) set · parity pattern LGGLGL encodes the leading 9 0 Digit 3 · L (odd parity) set · parity pattern LGGLGL encodes the leading 9 3 Digit 1 · G (even parity) set · parity pattern LGGLGL encodes the leading 9 1 Digit 7 · L (odd parity) set · parity pattern LGGLGL encodes the leading 9 7 Centre guard Digit 8 · R set 8 Digit 4 · R set 4 Digit 7 · R set 7 Digit 0 · R set 0 Digit 0 · R set 0 Digit 1 · R set · check digit 1 End guard 9 Hover or tap a digit.
