Quick Answer (TL;DR):
The Reassigned Numbers Database (RND) is an official FCC registry tracking disconnected and reassigned U.S. telephone numbers to help callers avoid placing unauthorized calls to new subscribers who never granted consent.
The Statutory Rule:
Established pursuant to the TRACED Act and FCC mandate (47 C.F.R. ยง 64.1200), the RND enables callers to determine whether a telephone number has been permanently disconnected or reassigned to a new subscriber since the date consent was originally captured.
Operational Implication:
- RND Safe Harbor: Querying the database using the date of consent prior to dialing provides an FCC-recognized safe harbor defense against liability if the database incorrectly returns a “No” result.
- Query Cadence: To maintain safe harbor protections, databases should be queried before launching campaigns, with records aged beyond 45 days refreshed systematically.
- Result Handling: A “Yes” response (number reassigned) must immediately invalidate prior consent and suppress the record from outbound marketing pipelines.
Related Guide:
Discover automated RND verification workflows in our TCPA compliance checklist for outbound campaigns (2026 update).