What Counts as an Autodialer Under the TCPA After Facebook v. Duguid

For years, what actually counted as an "autodialer" under the TCPA was one of the most litigated questions in the statute. In 2021, the Supreme Court answered it — narrower than a lot of plaintiffs' attorneys wanted, but not narrow enough to make the question irrelevant.

The statutory definition

The TCPA defines an automatic telephone dialing system (ATDS) as equipment with the capacity to store or produce telephone numbers using a random or sequential number generator, and to dial those numbers. Before 2021, courts disagreed on how literally to read that — some treated almost any equipment capable of automated dialing from a stored list as an ATDS, which swept a huge amount of ordinary CRM and dialer software into TCPA territory.

What Facebook v. Duguid changed

In Facebook, Inc. v. Duguid (2021), the Supreme Court held that equipment only qualifies as an ATDS if it uses a random or sequential number generator to either store or produce the numbers it dials. Equipment that simply dials from a curated, stored list of numbers — the way most modern outbound dialers and CRMs actually work — generally falls outside that definition.

What this means in practice

This narrowed autodialer liability meaningfully, but it did not eliminate TCPA risk for a typical outbound calling operation. A few things are important to keep in mind:

• The DNC rules still apply regardless of dialer type. Calling a number on the National DNC Registry is a violation whether or not the equipment used counts as an ATDS.
• Prerecorded and artificial voice calls are covered separately under a different part of the TCPA, and that restriction wasn't affected by Duguid.
• State mini-TCPA statutes may define autodialer differently. Some states didn't adopt the narrower federal reading, so equipment that's safe under federal law can still be regulated more strictly at the state level.

Why this doesn't change your scrubbing obligations

Duguid addressed one specific legal question — what equipment counts as an ATDS — and left the rest of the TCPA's framework intact. DNC scrubbing, consent requirements, and honeypot/litigator exposure are all unaffected. If anything, narrower autodialer liability shifts relative risk further toward the areas that Duguid didn't touch — which is exactly where scrubbing matters most.

The takeaway

Don't treat Duguid as a general TCPA green light. It resolved a specific technical question about dialing equipment; it didn't touch DNC compliance, consent, or the honeypot/litigator risk we cover in this comparison guide. Scrub your list either way. Get started free.