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  1. Home
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  3. USRC19900906
I Don’t Know Why album cover

I Don’t Know Why✓2

ISRC

USRC19900906

Song: I Don't Know Why

Starship
matched
Released 1987-01-01

Last verified: September 8, 2026

The ISRC for “I Don’t Know Why” by Starship is USRC19900906. 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. Released 1987-01-01. The underlying musical work is ISWC T-802525468-7. Written by GRACE SLICK, MICHAEL LUNA, JEFF PENNIG.

Format

US
Country
RC1Registrant
99Year (1999)
00906Designation
Country:
ISO 3166-1 alpha-2 country code (US).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (1999):
Last two digits of the reference year (1999). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCI Don’t Know Why
ISWCI Don't Know Why

Musical Work (ISWC)

T-802525468-7I Don't Know Why

People also ask

What is the ISRC for “I Don’t Know Why” by Starship?+
The ISRC for “I Don’t Know Why” by Starship is USRC19900906.
What is the ISWC for “I Don't Know Why”?+
The ISWC for “I Don't Know Why” is T-802525468-7. This recording is titled “I Don’t Know Why”. The ISRC USRC19900906 identifies this specific recording; the ISWC identifies the underlying musical work shared by all versions.
Who wrote “I Don't Know Why”?+
“I Don't Know Why” was written by GRACE SLICK, MICHAEL LUNA, JEFF PENNIG. The ISWC for this composition is T-802525468-7.
What is an ISRC and what does it tell you?+
An ISRC (International Standard Recording Code) is a 12-character ISO 3901 identifier that uniquely tags a specific sound recording. The first two characters are the country code, the next three are the registrant (label or distributor), the next two are the year, and the last five are a unique recording number.
Is the ISRC the same as the ISWC?+
No. The ISRC identifies a specific recording, while the ISWC identifies the underlying musical composition. USRC19900906 is the ISRC for this recording; T-802525468-7 is the ISWC for the composition it is a recording of. One composition (ISWC) can have many recordings (ISRCs) — originals, remixes, live versions, and covers each get their own ISRC but share the same ISWC.

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What is ISRC USRC19900906?

USRC19900906 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “I Don’t Know Why” by Starship. 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-802525468-7, 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.

Learn more about ISRCs · Powered by Notes.fm

Who wrote this song?

GRACE SLICKComposer
MICHAEL LUNAComposer
JEFF PENNIGComposer

Credits Graph

Explore this code's connections on the live Credits Graph.

MLC Song Code

I10300
Verify on MLC Portal →
SourcesMusicBrainzMLC✓2 sources

Verified on

  • MusicBrainz recording record
  • MLC song record
  • Starship

    The ISRC for “I Don’t Know Why” by Starship is USRC19900906. 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. Released 1987-01-01. The underlying musical work is ISWC T-802525468-7. Written by GRACE SLICK, MICHAEL LUNA, JEFF PENNIG.

    Starship

    Related

    Other versions of this workView all on iswc.fm

    You don't know

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    GBKQU1765375
    I DON'T KNOW WHYIT8VL1800655
    I DON'T KNOW WHYUSLZJ1979148
    I DON'T KNOW WHYGBCEN0900699
    I DON'T KNOWIEBWM0800005

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