Turn the boat around, this one’s a no-can-do.
Once an ISRC has been approved in the RouteNote system, it can’t be reused on another release.
Unfortunately, only one instance of an ISRC code is able to be registered on our site. You’ll need to add new ISRCs to your new release, even if the release contains the same tracks you’ve already uploaded.
If you leave the ISRC section of your track details blank, we will automatically generate these codes for you with no costs involved.
See also:
How do I get my ISRCs and UPCs?
Where do I find my UPC and ISRCs in my RouteNote account?
What is an “ISRC” code and how does it work?