Reassigned Numbers Database

The Reassigned Numbers Database is an FCC-created tool that lets callers check whether a phone number has been permanently disconnected and possibly given to a new person.

Phone numbers get recycled. Someone gives you consent, cancels their line months later, and the carrier reassigns that number to a stranger. If you call it, you are now calling a person who never agreed to hear from you. That is a common source of TCPA claims.

The FCC set up the Reassigned Numbers Database, which launched in late 2021 at reassigned.us. Callers can query a number with a date, usually the date consent was given, and learn whether the number has been permanently disconnected since then. Carriers report disconnections to the database.

Using it has a legal benefit. FCC rules provide a safe harbor for a call to a reassigned number if the caller checked the database and it wrongly reported that the number had not been disconnected.

How teams use it:

• Check older lead lists before a new campaign.
• Check numbers when consent is more than a few months old.
• Remove or re-confirm numbers flagged as disconnected.

There are subscription fees based on usage. The database does not tell you who owns a number now, only whether it was disconnected after a given date.

Sources

• Reassigned Numbers Database: https://www.reassigned.us/ (accessed October 17, 2026)
• 47 CFR 64.1200 (eCFR): https://www.ecfr.gov/current/title-47/chapter-I/subchapter-B/part-64/subpart-L/section-64.1200 (accessed October 17, 2026)

This entry is general information, not legal advice.