Who assigns IPI numbers?

IPI numbers are assigned by performing rights organizations (PROs) like ASCAP, BMI, SESAC, SOCAN, PRS, GEMA, SACEM, JASRAC, and others. SUISA (the Swiss PRO) maintains the global IPI database on behalf of CISAC, the international confederation of authors and composers societies.

IPI · Songwriter

MARK J WILLIAMSON

00128836454

101 works

Last verified: September 13, 2026

The IPI number for MARK J WILLIAMSON is 00128836454. IPI numbers are unique 11-digit Interested Parties Information codes managed by SUISA on behalf of CISAC, used by performing rights organizations worldwide to track royalty payments to rights holders. MARK J WILLIAMSON is indexed as a songwriter. MARK J WILLIAMSON has 101 registered works indexed on Credits.fm.

Format

0012883645Sequential number

4Check digit

Sequential number:: Globally unique number assigned by CISAC/SUISA when the rights-holder was registered.
Check digit:: ISO 7064 Mod 10-1 check digit that validates the IPI.

Credit Chain

ISWC101 works

IPIMARK J WILLIAMSON

101

Works

Publishers

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Avg. Share

Releases (1)

Releases that include recordings connected to this catalog.

UPC: 4050538767445

SourcesMLC

Identifier Graph

Who is IPI 00128836454?

00128836454 is an Interested Parties Information (IPI) code assigned to MARK J WILLIAMSON, a songwriter. IPI numbers are unique identifiers managed by SUISA on behalf of CISAC, used by performing rights organizations worldwide to identify rights holders and distribute royalties.

MARK J WILLIAMSON has 101 musical works (ISWCs) in our database.

MARK J WILLIAMSON

Format

Releases (1)

People also ask

Who is IPI 00128836454?

MARK J WILLIAMSON

Format

Musical Works (ISWC) (101)

Releases (1)

People also ask

Who is IPI 00128836454?

Musical Works (ISWC) (101)