ISRC
I Didn’t Change My Number
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USUM72105926 is the International Standard Recording Code (ISRC) for the recording “I Didn’t Change My Number” by Billie Eilish, released 2021-07-28. ISRCs are 12-character ISO 3901 identifiers that uniquely tag a specific sound recording — different masters, remixes, and live versions each receive a distinct ISRC. The underlying musical work is ISWC T-304757154-6. Written by BILLIE EILISH O'CONNELL, FINNEAS BAIRD OCONNELL.
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USUM72105926 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “I Didn’t Change My Number” by Billie Eilish. ISRCs are 12-character alphanumeric codes defined by ISO 3901, used globally by streaming platforms, record labels, and rights organizations to track plays and distribute royalties.
This recording is linked to the musical work T-304757154-6, which represents the underlying composition. Multiple recordings can share the same musical work — for example, an original version, a remix, and a cover would each have their own ISRC but reference the same ISWC.
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MLC Song Code
USUM72105926 is the International Standard Recording Code (ISRC) for the recording “I Didn’t Change My Number” by Billie Eilish, released 2021-07-28. ISRCs are 12-character ISO 3901 identifiers that uniquely tag a specific sound recording — different masters, remixes, and live versions each receive a distinct ISRC. The underlying musical work is ISWC T-304757154-6. Written by BILLIE EILISH O'CONNELL, FINNEAS BAIRD OCONNELL.
