Uploaded April 2022 | Updated September 2026, 2 weeks ago
Interested Party Information (IPI) numbers are a key part of any musical work registration with The MLC that help you accurately register your musical works and receive all the royalties you’re owed. This video explains the basic difference between writer and publisher IPI numbers, and shows you how to locate your IPI numbers on four of the major performing rights organization (PRO) websites in the United States.
DISCLAIMER: This video was uploaded to the MLC’s YouTube channel on 04/25/2022. Some content may no longer be accurate or up-to-date. For the latest information, please visit THEMLC.COM or reach out to our support team with any questions.
Interested Party Information (IPI) numbers are a key part of any musical work registration with The MLC that help you accurately register your musical works and receive all the royalties you’re owed. This video explains the basic difference between writer and publisher IPI numbers, and shows you how to locate your IPI numbers on four of the major performing rights organization (PRO) websites in the United States.
DISCLAIMER: This video was uploaded to the MLC’s YouTube channel on 04/25/2022. Some content may no longer be accurate or up-to-date. For the latest information, please visit THEMLC.COM or reach out to our support team with any questions.










