Paperwork
ISRC code format checker
An ISRC is a 12-character code that identifies one sound recording, written like US-S1Z-24-00001. Paste yours below to check the format; in the US, codes come from the US ISRC Agency or from your distributor.
Key takeaways
One recording, one code
Identical recordings share one ISRC, and a code should not change over the life of the track.
$95 once, then free
The US ISRC Agency charges a one-time $95 for a Rights Owner Prefix; assigning individual codes costs nothing after that.
Format only
The checker confirms the shape of a code. It does not prove the code was issued to you.
How an ISRC is built
- Agency code. Two letters. In the US this can be US, QM, QZ or QT.
- Registrant (prefix). Three characters that are unique to the recording owner.
- Year of reference. The year the code was assigned, not the year the recording was made.
- Designation. A five-digit number you assign, one per recording.
The code has four parts: a two-letter agency code, a three-character registrant (prefix) code, a two-digit year of reference and a five-digit designation number. In the US the agency code can be US, QM, QZ or QT. The year is when the code was assigned, not when the recording was made, and the code carries no other meaning. US ISRC Agency: Guidance and support · checked October 20, 2026
Who issues ISRCs in the US
The US ISRC Agency issues a Rights Owner Prefix for a one-time $95 administrative fee. After that, assigning individual codes costs nothing, and one prefix covers up to 100,000 codes per year. If you do not own your recordings, the agency has a separate manager account. US ISRC Agency FAQ · checked October 20, 2026
You may not need to apply at all. The agency says distribution providers can assign ISRCs on behalf of rights owners, and approved ISRC managers can provide codes to artists. Ask your distributor whether it assigns one and whether you can see it before release.
One recording, one code
Questions people ask
What is an ISRC?
An International Standard Recording Code is a 12-character identifier for one specific sound recording. Streaming services, distributors and royalty collectors use it to match plays to the right recording.
How much does an ISRC cost in the US?
The US ISRC Agency charges a one-time $95 administrative fee for a Rights Owner Prefix, with no further cost for assigning individual codes. Your distributor may also assign codes for you; check its help pages.
Does a remix need a new ISRC?
Yes. The US ISRC Agency lists remixes and edits among the changes that need a new code. A remaster generally keeps the same ISRC unless it involves significant new creative input.
Is an ISRC the same as an ISWC?
No. An ISRC identifies a recording (a specific performance on a track). An ISWC identifies the underlying musical work, the song itself.
Does this checker confirm my ISRC is registered?
No. It only checks the format. A well-formed code can still be unissued or belong to someone else.