The FCC's Reassigned Numbers Database (RND) is designed to prevent a consumer from getting unwanted calls intended for someone who previously held their phone number. Callers can use the database to determine whether a telephone number may have been reassigned so they can avoid calling consumers who do not want to receive the calls.

Callers that use the database can also reduce their potential Telephone Consumer Protection Act (TCPA) liability by avoiding inadvertent calls to consumers who have not given consent for the call.

The Reassigned Numbers Database can be found at www.reassigned.us.

How Will the Reassigned Numbers Database Help?

Once the database is operational, callers can check before making a call to find out if the phone number may have been reassigned. If the database wrongly indicates that the number has not been reassigned, the caller may be protected against TCPA liability when placing the call.

When Can Callers Start Using the Reassigned Numbers Database?

Development of the database is underway. This webpage will be updated with more information—including when the RND will be operational—as it becomes available. For more information, click through the tabs below.

For Consumers

To reduce unwanted and intrusive calls intended for a phone number's previous owner, the Commission now requires service providers to regularly report number disconnections and to wait a minimum of 45 days before reassigning a disconnected number to a new user.

Once the database is available, callers may check the database before making a call. Callers may be liable for violating the TCPA if:

  • they call a reassigned number without checking the database; or
  • they check the database, and then knowingly call a reassigned number without consent.

If you receive an unwanted call intended for the prior owner of your number, you can:

For Service Providers

  • Record-keeping requirement: As of July 27, 2020, service providers are required to maintain records of the most recent date that each phone number assigned to one of their subscribers was permanently disconnected. Small business service providers (those providers with 100,000 or fewer domestic retail subscribers) had until January 27, 2021, to comply with the record maintenance rule.
  • Aging requirement: As of July 27, 2020, all service providers are required to age telephone numbers for at least 45 days after permanent disconnection prior to reassignment.
  • Reporting requirement: As of April 15, 2021, and recurring on the 15th of every month, service providers must report permanent disconnections of their subscribers' telephone numbers to the Reassigned Numbers Database Administrator (RNDA). Small business service providers (those service providers with 100,000 or fewer domestic retail subscribers) have until October 15, 2021, to comply with this reporting requirement.
    • Providers are required to submit disconnected number data to the RNDA in accordance with prescribed technical specifications.

For Callers and Other Database Users

Once the database is operational, callers can check to see if a telephone number is still assigned to the consumer they are trying to reach. Doing so may reduce their calls to consumers who have reassigned numbers and who may not wish to receive such calls.

How to query: A caller will enter a phone number they wish to call, and either the date the caller obtained consent from the consumer or the last date the caller was able to verify that the consumer was at that telephone number. Callers may query individual numbers or groups of numbers.

Query responses: The database will return one of three responses: "Yes," "No," or "No Data."

  • Yes — indicates the number has been disconnected, and possibly reassigned, after the date provided, and the caller should not call the number unless they have separate consent from the current holder of the number.
  • No — indicates the number has not been disconnected or reassigned and the caller can place the call provided they have obtained consent from the consumer, if consent is required under the TCPA.
  • No Data — indicates the queried number is not contained in the database and the date provided in the query is before the date all providers are required to report disconnected numbers to the Reassigned Numbers Database.

You can learn more about these query results and review other database guidelines.

Safe Harbor: To be shielded from liability under the TCPA, a caller must prove that it: (1) obtained consent from the intended call recipient; (2) checked the database prior to calling the number to verify that the number had not been permanently disconnected, or reassigned, after the date the caller obtained consent; and (3) received from the database a query response of "no" that was incorrect.

Fees for use: Users of the database will be required to pay a subscription fee.

FAQs and Additional Information

The database administrator has provided a list of FAQs at www.reassigned.us.

RND Technical requirements

Creation of the Reassigned Numbers Database:

The Commission released the Reassigned Numbers Database Order on December 13, 2018. The Order established the creation of a database that will allow callers to determine whether a telephone number has been permanently disconnected, or reassigned, and therefore is no longer assigned to the party that the caller intends to reach.

The Commission selected SomosGov Inc. as the RNDA, or database administrator, under a five-year contract.

Updated: 
Monday, March 22, 2021