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Reassigned Numbers Database

RND / FCC Reassigned Numbers Database / reassigned number safe harbor

In short

The Reassigned Numbers Database is an FCC database that tells a caller whether a phone number has been permanently disconnected since a given date, which means it may now belong to someone else. Querying it before calling on old consent is how a caller qualifies for the FCC's safe harbor for reaching a reassigned number.

The FCC created the database in an order released in December 2018, aimed at unwanted calls to people who inherited a number from its previous owner. Phone companies report to the database administrator each month the most recent date each of their numbers was permanently disconnected.

A number counts as permanently disconnected when the subscriber gives it up for good, or the provider takes it back from the subscriber. A number ported to another provider does not count.

A caller queries a number together with the date consent was obtained. The answer says whether the number has been permanently disconnected since that date. A number that has been disconnected since then may have a new owner who never agreed to anything.

The safe harbor in the FCC's rule is narrow. It covers a caller who had consent, queried the database, received a no, and still reached the wrong person because that no was an error. The caller bears the burden of proof and persuasion for all of it.

In practice

A heating and cooling company plans a round of automated maintenance reminder calls to customers who gave consent when they bought a system. Before the round goes out, it queries each number with the date that customer consented, and removes every number the database reports as disconnected since then. The company keeps the query records. If a stranger still receives a call because the database answered wrongly, those records are what the safe harbor asks it to produce.

Not the same as

National Do Not Call Registry
The Do Not Call Registry lists numbers whose owners have asked not to receive telemarketing calls. The Reassigned Numbers Database answers a different question: whether a number has been permanently disconnected since a date, so that consent given by its old owner may no longer apply.

Why it matters to you

Consent is given by a person, and a phone number can pass to someone else. A calling list built on consent collected years ago can have numbers that now reach strangers. Querying the database before each campaign, and keeping the results, is the route the FCC's rule offers to protection for those calls.

What to ask or check

  1. 01Does the calling platform query the Reassigned Numbers Database before a campaign, and with which consent date for each number?
  2. 02Where are the query results stored, and for how long?
  3. 03Which of these calls rely on prior express consent, and when was that consent collected?

What people get wrong

That checking the database protects any call made afterwards. The FCC's safe harbor covers a call that reached the wrong person because the database wrongly answered no, and the caller has to prove it.

Prior express written consent

Prior express written consent is the standard the FCC's rules require before a business sends marketing calls or texts using an autodialer or an artificial voice. It has to be a signed agreement naming the phone number, and the rule says a person cannot be required to sign it as a condition of buying anything.

Robocall

A robocall is an outbound call that plays a recorded message. The Telemarketing Sales Rule prohibits placing one to sell something unless the person gave express agreement in writing beforehand. The rule covers calls you place. A system that answers calls coming in to you is a different thing.

National Do Not Call Registry

The National Do Not Call Registry is the federal list of numbers telemarketers may not call. Sellers subscribe by area code, and FTC guidance says call lists must be scrubbed against it at least every 31 days. Business to business calls are largely outside the rule, with narrow exceptions.

Telemarketing Sales Rule

The Telemarketing Sales Rule is the FTC rule governing sales calls. Beyond the do not call list, it sets what a caller must say and when they may call: residential calls only between 8am and 9pm local time, and a prompt disclosure that the purpose of the call is to sell something.

AI voice calls

An AI voice call uses a synthesized or cloned voice to speak to the person who answers. In February 2024 the FCC confirmed those voices fall under the existing rules on artificial or prerecorded voice, so the same consent requirements apply. The message must also identify your business and offer an automated way to opt out.

Call tracking

Call tracking replaces the phone number shown to a visitor with a substitute number that routes to your real one. Only calls dialed through that substitute are measured. Google assigns a forwarding number when call reporting is on, and Microsoft requires an ad group to have reached 10 clicks and 10 dollars of spend in 30 days.

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