What is an ISRC?
An ISRC is a 12-digit unique identifier for sound recordings. One code is allocated to each version of a sound recording, and only this code is used for that recording. The ISRC is specific to the recording, and does not apply to the underlying composition.
How long is an ISRC good for?
Once assigned, the ISRC identifies the track throughout its life. No other sound recording should have the same ISRC and only one ISRC should be used to identify a sound recording. The ISRC functions like a vehicle identification number on a car or a serial number on a piece of equipment.
A comprehensive list of situations that require a new ISRC is available here:
Does the change in ownership affect ISRC?
Changes in ownership do not affect the ISRC. Any time an unchanged sound recording is reused on a new album or single release, a new ISRC is not needed even if there is a new owner of the sound recording.
For more information about releasing previously-released recordings, see also: