The ISWC-Net

The ISWC (International Standard Musical Work Code) is a unique, permanent and internationally recognized reference number for the identification of musical works. It is managed as part of the International Standards Organization, or ISO. The International Standard Musical Work Code for musical works prvides a means to uniquely identify a musical work as an intangible creation. (A musical work, in the terms of this standard, is a result of an intangible creation of one or more people (creators); it is composed of a combination of sounds with or without accompanying text)

The ISWC-Net has been developed by FastTrack on behalf of CISAC in its role as the ISO-appointed international agency for the ISWC. With the opening of ISWC-Net at, the public can obtain key information such as title, author, and composer of millions of musical works on the ISWC network.

ISWC numbers are assigned to musical works by authorized ISWC Agencies, typically Collective Management Organizations, registered as part of the ISWC International Agency.