# TCPA Reassigned Number Database: A Practitioner Field Guide

> Understand RND query outputs, safe harbor rules, and workflow integration. Plura AI helps contact centers manage reassigned number risk.

**Published:** 2026-09-07 | **Updated:** 2026-11-06 | **Author:** plurasync
**URL:** https://www.plura.ai/articles/tcpa-reassigned-number-database
**Type:** post

**Categories:** AI SMS Automation

![TCPA Reassigned Number Database: A Practitioner Field Guide](https://plura.sites.aigrowthagent.co/wp-content/uploads/sites/75/2026/09/1788722837978-fe563e6d2fd7-1024x572.webp)

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## Content

*Written by: Matt Beucler, CEO, Plura AI | Last updated: September 29, 2026*

*Updated September 2026*

## Key Takeaways

- The TCPA Reassigned Numbers Database (RND) functions as an ongoing pre-dial control that teams query before every outbound call using an accurate consent date.
- Query results of “Yes” or “No Data” provide no safe harbor protection and require immediate suppression or further review of the number.
- Accurate consent dates are critical. Using incorrect or undocumented dates voids the safe harbor and increases TCPA exposure.
- The 45-day aging period and monthly RND refresh cycle require regular re-queries for ongoing campaigns instead of one-time checks.
- Plura AI integrates RND validation with real-time DNC scrubbing, TCPA-litigator screening, and immutable consent logging to help maintain systematic compliance.

[See how Plura AI automates RND compliance.](https://www.plura.ai/plura-webchat?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent)

![Screenshot of Plura’s fully compliant AI communications platform showing business registration and phone number provisioning workflows for AI Voice, SMS, RCS, and Webchat communication automation.](https://cdn.aigrowthmarketer.co/1779337911454-8c3a9645d906.png)**Plura’s FCC-licensed AI communications platform simplifies compliant business registration and phone number provisioning for AI Voice, SMS, RCS, and Webchat workflows.*1*

## How the Reassigned Numbers Database Works in Practice

The RND is an FCC-mandated database [accessible at reassigned.us](https://reassigned.us) that aggregates permanent disconnection data reported by every facilities-based voice provider in the United States. [The FCC finalized the RND rules in December 2018 and the database went live in January 2021](https://leadcompliant.com/articles/tools-and-processes/tcpa-tools), operated by Somos, Inc. under FCC authorization.3 The FCC’s order establishing the safe harbor framework is docket DA-20-423A1. The safe harbor is codified at 47 CFR 64.1200(m). The RND is distinct from the National Do Not Call Registry, which the FTC administers. They solve different problems and operate as separate controls.

## How TCPA Liability Connects to Reassigned Numbers

The TCPA (Telephone Consumer Protection Act, P.L. 102-243, signed December 20, 1991) restricts the use of autodialers, prerecorded or artificial voice messages, and unsolicited advertisements by voice call and fax.2 [TCPA statutory damages run $500 to $1,500 per call or text violation under 47 U.S.C. § 227, with no cap on violations per lawsuit.](https://leadcompliant.com/articles/tools-and-processes/tcpa-tools)

The RND addresses the reassigned-number problem. [Consent under the TCPA belongs to the person who gave it, not to the phone number.](https://uspeoplesearch.net/compliance/faq) When a number is reassigned, the new subscriber has not given consent, so the original consent no longer covers calls to that number. Calling a reassigned wireless number using an autodialer or prerecorded voice, without new consent from the current subscriber, is the risk pattern the RND is designed to help manage.

This guide describes the TCPA framework neutrally. It does not constitute legal advice. Consult the regulation at 47 U.S.C. § 227 and qualified counsel to determine how the framework applies to your specific program.

## The Three RND Query Outputs and Related Exposure

Every RND query returns one of three outputs. [The database accepts a phone number and a consent date and returns “Yes,” “No,” or “No Data.”](https://uspeoplesearch.net/compliance/faq) Each output carries a distinct liability implication. The table below maps each result to what it means and how it affects your exposure. Most current guidance glosses over the “No Data” result. It does not provide safe harbor protection.

| Query Output | What It Means | Liability Implication |
| --- | --- | --- |
| Yes | [Number was permanently disconnected after the date provided; a new subscriber may now hold it](https://leadcompliant.com/articles/tools-and-processes/how-to-remove-reassigned-numbers-from-your-calling-list) | No safe harbor. Suppress the number immediately and add it to your internal DNC list. |
| No | [No permanent disconnect on record after the date provided, or consent date is on or after January 27, 2021](https://bluereacher.com/blog/reassigned-numbers-in-old-lead-lists) | Safe harbor under 47 CFR 64.1200(m) may apply if all other conditions are met. |
| No Data | [Database lacks sufficient information, often because consent predates carrier reporting or the number was ported rather than disconnected](https://airship.com/blog/airship-sms-rnd-scanning) | No safe harbor. Exercise caution and consult qualified counsel on next steps. |

[Under 47 CFR 64.1200(m)(1), the safe harbor requires the caller to prove two conditions: the most recent RND query returned “No,” and the call occurred because the database erroneously returned “No.”](https://bluereacher.com/blog/reassigned-numbers-in-old-lead-lists) The burden of proof sits with the caller. A “No Data” result satisfies neither condition.

## Why the Date of Consent Drives Safe Harbor Protection

The date-of-consent input is the single most common operational failure point in RND workflows. [The RND uses the submitted consent date to determine whether a permanent disconnection occurred after consent was established.](https://leadcompliant.com/articles/tools-and-processes/how-to-remove-reassigned-numbers-from-your-calling-list) If the date is wrong, the query result is unreliable and the safe harbor does not hold.

A legally defensible RND query requires a documented, accurate consent date for every number in the campaign. [A legally defensible TCPA consent record must include the exact disclosure language the consumer saw at opt-in, the date and time in UTC, the channel, the specific phone number consented, and confirmation that consent was not a condition of purchase.](https://leadcompliant.com/articles/tools-and-processes/tcpa-tools) This full record supports the consent date you feed into the RND.

For audit purposes, log the following for every RND query:

- The phone number queried
- The consent date submitted with the query
- The query timestamp (must pre-date the call)
- The output returned (Yes, No, or No Data)
- The source of the consent date (web form, IVR, SMS keyword, or other channel)

[FCC rules require callers to keep records sufficient to support a safe harbor claim, including a dated record of the RND query run, the consent dates used, and the results.](https://leadcompliant.com/articles/tools-and-processes/how-to-remove-reassigned-numbers-from-your-calling-list) For purchased lead lists with no known opt-in date, [the conservative approach is to use the list acquisition date or the earliest plausible lead creation date as a proxy](https://leadcompliant.com/articles/tools-and-processes/how-to-remove-reassigned-numbers-from-your-calling-list). That approach flags more numbers as possibly reassigned and produces a smaller but safer dial list. Consult qualified counsel on the appropriate approach for your specific program.

For broader program-level consent documentation requirements, see the [TCPA Compliance Checklist: 12 Control Areas to Know](https://www.plura.ai/articles/tcpa-compliance-checklist/?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent) and the [TCPA Compliance Guide for Contact Centers 2026](https://www.plura.ai/articles/tcpa-compliance-contact-centers/?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent).

## RND Timing Rules and the 45-Day Aging Window

Under 47 CFR 52.15(f)(1)(ii), a number last assigned to a residential customer may be aged no less than 45 days and no more than 90 days before reassignment; business numbers may be aged no less than 45 days and no more than 365 days. The 45-day floor is a regulatory minimum, not a guarantee. [A carrier that needs numbers in a busy area code can release a business number at the 45-day floor rather than waiting the full 365 days.](https://bluereacher.com/blog/reassigned-numbers-in-old-lead-lists)

This aging window explains why RND checks cannot operate as one-time campaign hygiene. [RND service providers must submit disconnect reports covering data through at least the 10th of the month no later than the 15th, meaning the RND refreshes once a month with new data by the 15th.](https://airship.com/blog/airship-sms-rnd-scanning) Compliance teams running ongoing programs should schedule queries after the monthly refresh, not before it.

Two practical timing rules follow from this:

- [For campaign-based outbound, batch RND queries 24 to 72 hours before dialing starts. Querying more than a week out weakens the protection.](https://leadcompliant.com/articles/tools-and-processes/how-to-remove-reassigned-numbers-from-your-calling-list)
- [For ongoing relationship programs dialing the same pool of contacts over months, re-query the RND every 30 days at minimum.](https://leadcompliant.com/articles/tools-and-processes/how-to-remove-reassigned-numbers-from-your-calling-list)

The 45-day aging period governs carrier reassignment, not consent expiration. Leads inactive for 45 days do not automatically require re-checking. [The aging period defines when a carrier may reassign a disconnected number, while consent management follows its own rules.](https://searchbug.com/info/marketers-guide-to-tcpa-compliance-for-lead-generation)

## How Long Numbers Typically Sit Before Reassignment

Residential numbers must age at least 45 days after permanent disconnection, with a maximum of 90 days. Business numbers follow the same 45-day minimum and can age up to 365 days. In practice, the actual time before reassignment varies by carrier and by demand for numbers in a given area code. [The FCC has stated that approximately 35 million U.S. phone numbers are disconnected and made available for reassignment annually.](https://leadcompliant.com/articles/tools-and-processes/how-to-remove-reassigned-numbers-from-your-calling-list) The 45-day floor operates as a regulatory minimum, not a reliable prediction of when a specific number will reach a new subscriber.

## How to Get Access to the Reassigned Numbers Database

Once you understand the timing rules, the next step is gaining access. Access to the RND is subscription-based through the official portal at [reassigned.us](https://reassigned.us). Organizations register as queriers through the FCC’s portal.

[As of July 2025, entry tiers start at 1,000 queries for $8 per month ($0.008 per number) and 10,000 queries for $60.](https://bluereacher.com/blog/reassigned-numbers-in-old-lead-lists) An annual option provides 120,000 queries for $648. Volume pricing drops sharply at scale. 500,000 queries cost $2,000 per month, and the top tier of 50,000,000 queries costs $28,000 per month. If a subscriber exhausts their query allowance before the term ends, additional capacity is available by paying 10% of the subscription price to add 10% more queries on the same term.

## Step-by-Step: Checking If a Number Has Been Reassigned

RND checks rely on two core inputs: the phone number and the date of last verified consent. The process follows five steps:

1. Register as a querier through the FCC’s portal at [reassigned.us](https://reassigned.us).
2. Submit the phone number and the date of last verified consent.
3. Receive one of three outputs: Yes, No, or No Data.
4. Apply your internal handling rules for each output, based on the liability implications described earlier.
5. Document the query timestamp, consent date used, and result for audit.

[Queries can be submitted through four methods: the web interface (up to 50 numbers at a time), file upload or bulk lookup (up to 1,000,000 numbers), SFTP, or an API (1,000 numbers per call). Each query must carry the phone number, the caller’s last known contact date, and the caller’s company ID.](https://bluereacher.com/blog/reassigned-numbers-in-old-lead-lists) [RND query result downloads remain available for only 45 days](https://bluereacher.com/blog/reassigned-numbers-in-old-lead-lists), so compliance teams should archive results in a system that outlives that window to preserve safe harbor evidence.

[See how Plura runs RND checks before every dial.](https://plura.ai/ai-predictive-dialer?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent)

![Plura Predictive Dialer dashboard displaying AI-powered outbound call pacing, transfer analysis, and dialing performance insights.](https://cdn.aigrowthmarketer.co/1779338793506-2d33c5dff8e8.png)**Plura Predictive Dialer automates outbound calling with AI-powered pacing, transfer optimization, and real-time performance analytics.**

## Wiring RND Checks Into a Dialing Workflow

Manual RND lookups do not scale for high-volume contact centers. Convoso VP of Product Marketing Daniel Foppen stated that more than a million phone numbers change hands every day, and that without real-time validation organizations risk contacting consumers who never provided consent.3 A batch scrub run at list-build time may be stale by the time the campaign dials. The control needs to sit at the point of contact.

A systematic pre-dial RND workflow has three components:

- **Pre-dial API call:** Query the RND via API for each number before the call is initiated. The query timestamp must pre-date the call. Numbers returning “Yes” are suppressed immediately. Numbers returning “No Data” are flagged for review.
- **Caching with expiration:** Cache “No” results with a 30-day expiration for ongoing programs. Do not reuse cached results beyond that window without re-querying.
- **Audit logging:** Write the query timestamp, consent date used, phone number, and output to an immutable log. This record forms the evidentiary foundation of any safe harbor claim.

Plura lists the Reassigned Numbers Database (RND) among its [validation integrations](https://plura.ai/integrations?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent) alongside IP Quality Score and TrestleIQ.1 The platform enforces real-time DNC scrubbing, TCPA-litigator screening, automated quiet hours, and immutable consent logging on every outbound contact. Plura’s [AI Predictive Dialer](https://plura.ai/ai-predictive-dialer?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent) runs on Plura’s own FCC-licensed audio bridging carrier, with STIR/SHAKEN caller ID authentication on every outbound call. Plura supports customer compliance workflows; customers remain responsible for their own regulatory obligations and the claims they make to their end users.

![Plura Security & Compliance dashboard highlighting SOC 2, ISO, and GDPR standards with secure trust verification management.](https://cdn.aigrowthmarketer.co/1779339090994-980045ddacd2.png)**Plura Security & Compliance supports SOC 2, ISO, and GDPR standards with trust registration, verification management, and secure AI communications.**

[Automated compliance checks embedded directly into outbound call workflows replace periodic batch processes and manual lookups, and produce detailed records with each transaction, including scrub receipts, timestamps, suppression sources, and consent histories.](https://possiblenow.com/resources/do-not-call-solutions/how-to-automate-dnc-compliance-checks-in-your-outbound-call-process)

## Limits of the RND Safe Harbor

The RND safe harbor is narrow in scope. [The FCC safe harbor does not cover calls made without querying the RND at all, calls made after a “Yes” response, calls where the query is stale, or calls to numbers that returned “No Data.”](https://leadcompliant.com/articles/tools-and-processes/how-to-remove-reassigned-numbers-from-your-calling-list)

Additional conditions that fall outside the safe harbor include:

- Calls placed using an inaccurate or undocumented consent date
- Calls placed after the new subscriber has signaled a wrong number (the safe harbor covers a single database miss, not ongoing contact after notice of reassignment)
- Numbers not yet reflected in the database because the carrier has not yet reported the disconnect in the current monthly cycle
- State law claims, which the federal safe harbor does not address

[The FCC’s RND safe harbor is a regulatory protection that primarily shields callers from FCC enforcement; it does not automatically immunize callers from private TCPA lawsuits brought directly under 47 U.S.C. § 227.](https://leadcompliant.com/articles/tools-and-processes/how-to-remove-reassigned-numbers-from-your-calling-list) Consult qualified counsel on the scope of protection available under your specific program and the states you call into.

## Frequently Asked Questions

### When RND Checks Qualify for TCPA Safe Harbor

The safe harbor codified at 47 CFR 64.1200(m) applies only when several conditions align. Prior consent from the intended recipient must exist. The RND must have been queried before the call using an accurate consent date, and the query must have returned “No.” The safe harbor applies when the database itself was wrong, not when the process was skipped or the consent date was inaccurate. A “No Data” result does not qualify. The safe harbor also addresses FCC enforcement exposure and does not automatically resolve private TCPA lawsuits. Consult qualified counsel on the full scope of protection available for your program.

### How to Interpret a “No Data” RND Result

“No Data” means the RND lacks sufficient information to answer the query for the phone number and consent date combination submitted. This typically occurs when the consent date predates January 27, 2021, when carriers began keeping disconnect records in the RND, or when the number was ported to a new carrier rather than permanently disconnected. “No Data” does not provide safe harbor protection. Callers receiving this output should exercise caution and consult qualified counsel before proceeding with outreach to that number.

### Practical Access Options for the RND

Organizations register as queriers through the FCC’s portal at reassigned.us. Access is subscription-based with tiered pricing by query volume. As of July 2025, tiers range from 1,000 queries for $8 per month up to 50,000,000 queries for $28,000 per month. Queries can be submitted through a web interface, file upload for bulk lookups, SFTP, or an API. Each query requires the phone number, the caller’s last known contact or consent date, and the caller’s company ID. Third-party compliance vendors also offer RND access through their own APIs, typically at a higher per-query cost that includes additional data layers such as carrier line status and number portability information.

### How the RND Query Date of Consent Works

The date of consent is the input the RND uses to determine whether a permanent disconnection occurred after the caller established a relationship with the subscriber. It is the date the caller last obtained or verified consent from the person they believe holds the number. If the date is inaccurate, the query result may not reflect the actual reassignment risk, and the safe harbor may not apply. For purchased lists with no documented opt-in date, compliance teams often use the list acquisition date or the earliest plausible lead creation date as a conservative proxy. Consult qualified counsel on the appropriate approach for your specific program.

### Why the RND Does Not Replace DNC Scrubbing

The RND and the National Do Not Call Registry solve different problems and operate as separate controls. The RND tells you whether a number was permanently disconnected and possibly reassigned to a new subscriber who never consented. The DNC Registry is a preference signal from a real person who does not want telemarketing calls. A number can be absent from the DNC list and still be reassigned, or sit on the DNC list with no reassignment history. Both checks belong in a complete pre-dial compliance workflow, and they address separate liability exposures.

## Conclusion and Next Steps for Contact Center Leaders

The TCPA reassigned number database functions as an ongoing control that operations teams run before each outbound call, not as a one-time lookup. The safe harbor at 47 CFR 64.1200(m) holds only when the RND is queried before every call, the consent date input is accurate and documented, the result is logged with a pre-call timestamp, and the output is acted on immediately. The safe harbor fails in three common cases: a “No Data” result, a stale query, and an inaccurate consent date.

Practical next steps for compliance and operations teams:

- Audit your current consent date documentation to confirm every number in active campaigns has a verifiable, logged opt-in date.
- Review your query timing against the RND’s monthly refresh cycle and schedule queries after the 15th of each month when new disconnect data is available.
- Evaluate whether your current dialing workflow runs RND checks as a pre-dial API call or as a periodic batch process, and identify the operational gap between those two approaches.
- Confirm that RND query logs, consent records, and suppression history are retained for at least four years, matching the TCPA statute of limitations in most courts.
- Consult qualified counsel on how the safe harbor framework applies to your specific program, including any state-law exposure that the federal safe harbor does not address.

Plura’s [validation integrations](https://plura.ai/integrations?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent) include the Reassigned Numbers Database (RND), and the platform enforces real-time DNC scrubbing, TCPA-litigator screening, automated quiet hours, and immutable consent logging on every outbound contact. Compare [plans and rates](https://plura.ai/pricing?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent) side by side, or run your numbers through Plura’s [ROI calculator](https://plura.ai/calculator?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent) to check your cost savings in real time.

[Book a live demo with Plura.](https://plura.ai/ai-predictive-dialer?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent)

1 Plura AI maintains SOC 2, HIPAA, ISO, and GDPR posture as part of its platform infrastructure. References to compliance frameworks in this article describe Plura’s platform capabilities and do not constitute a guarantee that any customer using Plura will themselves be compliant with applicable laws or standards. Customers remain solely responsible for their own regulatory obligations, certifications, consent management, recordkeeping, and the claims they make to their own end users. Consult qualified legal counsel for guidance specific to your use case.

2 This article describes regulatory frameworks at a general level and does not constitute legal advice. Laws and regulations vary by jurisdiction, change over time, and apply differently depending on facts and circumstances. Readers should consult qualified legal counsel before making compliance decisions.

3 References to third-party products, services, companies, or research are made for informational and comparative purposes only. Plura AI is not affiliated with, endorsed by, or sponsored by any third party named in this article unless explicitly stated. Trademarks and product names referenced remain the property of their respective owners.

This article is provided for informational purposes only and reflects Plura AI’s understanding at the time of publication. Product capabilities, integrations, and specifications are subject to change. For the most current information, visit plura.ai.

This article was produced with the assistance of AI tools and reviewed by Plura AI prior to publication.

## Read Next

- [TCPA Compliant Predictive Dialer: 2026 Rules and Controls](https://www.plura.ai/articles/tcpa-compliant-predictive-dialer-2026/?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent)
- [TCPA Lead Qualification: Consent, DNC, and AI Voice](https://www.plura.ai/articles/tcpa-compliant-lead-qualification/?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent)
- [TCPA Compliance Audit: A Practitioner’s Guide](https://www.plura.ai/articles/tcpa-compliance-audit-guide/?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent)
- [TCPA Compliance for Contact Centers: 2026 Guide](https://www.plura.ai/articles/tcpa-predictive-dialer-rules-2026/?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent)
- [How to Build a TCPA Compliant AI Contact Center](https://www.plura.ai/articles/tcpa-compliant-ai-contact-center/?utm_term=tcpa-reassigned-number-database&utm_campaign=ai_growth_agent)

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## Citations

- [Stop Keyword Opt-Out Requirements for SMS: 2026 Guide](https://www.plura.ai/articles/sms-stop-keyword-opt-out-requirements)
- [Automated Text Back When a Lead Form Is Filled Out](https://www.plura.ai/articles/automated-text-back-lead-form)
- [AI SMS Agent Opt-Out Handling: A Build Spec for Dev and Ops](https://www.plura.ai/articles/ai-sms-agent-opt-out)
- [How To Run AI SMS Follow-Up for Window and Door Leads](https://www.plura.ai/articles/ai-sms-follow-up-window-door)
- [Mortgage Lead SMS Follow-Up: Consent and Compliance](https://www.plura.ai/articles/mortgage-lead-sms-compliance-guide)

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