What the Reassigned Number Database Is

The Reassigned Number Database, or RND, is the FCC's official registry of U.S. phone numbers that have changed subscribers or been disconnected since the registry started in 2021. It now holds over 300 million numbers. The problem it solves is real: a Lead who gave you permission to call last year may have given up that number, and the wireless carrier may have handed it to a stranger. Call the stranger and you have an unwanted call on your hands, plus possible TCPA exposure. The RND lets organizations confirm that the person on their Lead list is still tied to the number before the dialer fires.

How the database works

The RND does not tell you who owns a number. Instead, you give it a number and a date, and it tells you whether the number was permanently disconnected or reassigned after that date. The date you supply is your last-contact date or your consent date, the day you last had a confirmed connection to that person. If the answer comes back that the number has not been reassigned since your date, you can call with confidence. If it comes back yes, that contact is stale and you should suppress it the same way you handle an Internal DNC entry.

You can check up to 50 individual numbers per query, or up to 250,000 numbers in a single batch. Pricing is tiered, running from $10 for 1,000 queries up to $357,000 for 600 million queries per year, and in April of 2025 the FCC reduced every tier by 20 percent. The RND is one piece of a layered suppression strategy. It works alongside DNC scrubbing, which we cover in filtering leads against the federal DNC, and fits into the wider picture in our VICIdial compliance overview.

Where the RND sits in your call flow

flowchart TD
  A[Lead enters dialer] --> B[Read last contact date]
  B --> C[Query RND with number and date]
  C --> D{Reassigned after that date?}
  D -->|Yes| E[Suppress the lead]
  D -->|No| F[Safe to dial]
  F --> G[Place the call]

The diagram shows the RND acting as a gate just before dialing. You send the number plus your consent date, the database answers, and only numbers that have not been reassigned move on to the call. Everything that comes back reassigned gets parked instead of dialed.

VICIfast helps you keep clean, current lead data and ships compliant defaults so RND scrubbing fits naturally into your dialing routine. Check our pricing to see plans.