ISRC stands for International Standard Recording Code. It is a unique, 12-character identifier for a specific sound recording or music video. Think of it as the passport number for one particular audio master, not for the song (composition) itself.
The standard format is:CC-XXX-YY-NNNNN
- CC (Country code) – usually the country of the registrant or an overflow code used in high-volume territories.
- XXX (Registrant code) – identifies the company or individual issuing the code (label, producer, rights owner, or ISRC manager).
- YY (Year) – last two digits of the year the ISRC was assigned. This is not necessarily the recording year.
- NNNNN (Designation code) – a five-digit number that uniquely identifies the recording within that registrant and year.
Once you know this pattern, you can quickly spot impossible years, invalid country codes, or multiple “versions” that should in fact share the same ISRC. Once assigned, an ISRC should remain attached to that recording for its entire life, regardless of which distributor or label handles it later.