Facebook, Inc. v. Duguid
Decided April 1, 2021. Sonia Sotomayor delivered the opinion of the Court.
Docket 19-511 · 592 U.S. 395 (2021) · Cited 386 times
Holding
To qualify as an “automatic telephone dialing system” under the Telephone Consumer Protection Act of 1991, a device must have the capacity either to store, or to produce, a telephone number using a random or sequential number generator.
The Court’s statement of the holding, from the opinion’s syllabus. The syllabus is prepared by the Reporter of Decisions and is not part of the opinion of the Court. Read the official opinion for authority.
How the Justices voted
Decided 9–0.
Majority · 8
- John G. Roberts, Jr.
- Clarence Thomas
- Sonia Sotomayor · delivered the opinion of the Court
- Elena Kagan
- Neil M. Gorsuch
- Brett M. Kavanaugh
- Amy Coney Barrett
- Stephen G. Breyer
Concurring · 1
- Samuel A. Alito, Jr. · filed an opinion concurring in the judgment
“Concurring” means agreeing with the outcome; any split shown is the Court’s judgment, not each Justice’s reasoning. The lineup is the syllabus’s disposition of who wrote and joined each opinion. Source: the opinion’s syllabus (supremecourt.gov).
Precedents cited
Supreme Court decisions this opinion relies on, ordered by how often it cites each. Cases in our collection link through; others are named.
- Jama v. Immigration and Customs Enforcement · 543 U.S. 335 (2005)
- Lockhart v. United States · 577 U.S. 347 (2016)
- Barnhart v. Thomas · 540 U.S. 20 (2003)
- United States v. Bass · 404 U.S. 336 (1971)
- United States v. Detroit Timber & Lumber Co. · 200 U.S. 321 (1906)
- United States National Bank v. Independent Insurance Agents of America, Inc. · 508 U.S. 439 (1993)
- BFP v. Resolution Trust Corporation · 511 U.S. 531 (1994)
- Campbell-Ewald Co. v. Gomez · 577 U.S. 153 (2016)
- Porto Rico Railway, Light & Power Co. v. Mor · 253 U.S. 345 (1920)
Cited by
Later Supreme Court opinions in our collection that cite this case.
- Delligatti v. United States · 604 U.S. 423 (2025)
Official text
Read the official opinion (PDF, supremecourt.gov)
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Sonia Sotomayor’s profile · All Supreme Court opinions · The Supreme Court
Source: Supreme Court of the United States, slip opinions (2021). Citation count from the Free Law Project’s CourtListener bulk data. Data last verified 2026-08-15. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).