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  1. Home
  2. ISRCs
  3. USAT21501219
Knocked Off album cover

ISRC

USAT21501219

Knocked Off✓2

Song: KNOCKED OFF

Young ThugBirdman
matched
Released 2015-01-01

Last verified: August 31, 2026

USAT21501219 is the International Standard Recording Code (ISRC) for the recording “Knocked Off” by Young Thug, Birdman, released 2015-01-01. 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 T9193501449. Written by WESLEY TYLER GLASS, JEFFERY LAMAR WILLIAMS, BRYAN WILLIAMS.

Format

USCountry
AT2Registrant
15Year (2015)
01219Designation
Country:
ISO 3166-1 alpha-2 country code (US).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (2015):
Last two digits of the reference year (2015). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCKnocked Off
ISWCKNOCKED OFF
IPIWESLEY TYLER GLASS

Musical Work (ISWC)

T9193501449KNOCKED OFF

People also ask

What is the ISRC for "Knocked Off" by Young Thug?+
The ISRC for "Knocked Off" by Young Thug, Birdman is USAT21501219.
Who wrote "Knocked Off"?+
"Knocked Off" was written by WESLEY TYLER GLASS, JEFFERY LAMAR WILLIAMS, BRYAN WILLIAMS. The ISWC for this composition is T9193501449.
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. USAT21501219 is the ISRC for this recording; T9193501449 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 USAT21501219?

USAT21501219 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Knocked Off” by Young Thug, Birdman. 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 T9193501449, 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?

WESLEY TYLER GLASSComposerLyricist
IPI: 00607011004
PAYDAY EMPIRE MUSIC OriginalPublisherIPI: 01295942900
WHEEZYHITMAKER OriginalPublisherIPI: 00873780595
JEFFERY LAMAR WILLIAMSComposerLyricist
IPI: 00664487309
BRYAN WILLIAMSComposerLyricist
IPI: 00355765921

Who publishes this song?

PAYDAY EMPIRE MUSICOriginalPublisher
IPI: 01295942900
WHEEZYHITMAKEROriginalPublisher
IPI: 00873780595

Which contributors are credited?

0000 0000 7999 639XBRYAN WILLIAMS0000 0004 0690 4932BRYAN WILLIAMS0000 0004 6729 6272WESLEY TYLER GLASS0000 0004 4809 8633JEFFERY LAMAR WILLIAMS

Identifier Graph

ISRCUSAT21501219ISWCT9193501449IPIWESLEY TYLER GL…IPIJEFFERY LAMAR W…IPIBRYAN WILLIAMSISNIBRYAN WILLIAMSISNIBRYAN WILLIAMSISNIWESLEY TYLER GL…

MLC Song Code

KA0ONK
Verify on MLC Portal →
SourcesMusicBrainzMLC✓2 sources

Verified on

  • MusicBrainz recording record
  • MLC song record

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WESLEY TYLER GLASSIPIJEFFERY LAMAR WILLIAMSIPIBRYAN WILLIAMSIPI
Young ThugBirdman

USAT21501219 is the International Standard Recording Code (ISRC) for the recording “Knocked Off” by Young Thug, Birdman, released 2015-01-01. 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 T9193501449. Written by WESLEY TYLER GLASS, JEFFERY LAMAR WILLIAMS, BRYAN WILLIAMS.

Young Thug, Birdman