IPI stands for “Interested Party Information.”
It is alternately referred to as a “CAE number,” and is sometimes still written as “CAE/IPI.” It is a 9-11 digit international identification number assigned to songwriters and publishers by their Performance Rights Organization (PRO) to uniquely identify them as rightsholders.
Example: 00052210040 (Leading zeros are not required.)
IPIs are provided to a writer or publisher after they join a PRO. PROs in the U.S. are: ASCAP, BMI, GMR and SESAC. To find your IPI number, you can search the repertory of your PRO’s website or contact your PRO directly.