The National Do Not Call Registry is a federal list of telephone numbers whose owners have asked not to receive telemarketing calls, and a real estate agent who calls one of those numbers to solicit a listing has broken the same rule a timeshare company would break by doing it. That is the whole definition. Most agents know it. What most agents do not know is that the registry creates three separate obligations rather than one, that only one of them involves the registry itself, and that the phrase “we scrub our lists” usually describes a fraction of the first.
The three obligations are to scrub against the national list on a 31-day clock, to keep your own do-not-call list for as long as the rule says, and to be able to prove you did both if a call goes wrong. Miss any of them and the accidental call that every agent eventually makes has no defense attached to it. This is operational education rather than legal advice, and your state may add requirements of its own.
Obligation one: the national list, on a 31-day clock
The rule is at 16 CFR 310.4(b)(1)(iii)(B) in the FTC’s Telemarketing Sales Rule and at 47 CFR 64.1200(c)(2) in the FCC’s. A solicitation call to a registered number is prohibited unless one of two exceptions applies, and the version of the registry you checked has to have been obtained no more than 31 days before the call.
Accessing the registry is a registration, and agents are often surprised to learn that. Sellers and telemarketers obtain a Subscription Account Number at the FTC’s telemarketer portal, identify the area codes they intend to call, and download the registered numbers for those area codes. The first five area codes are free; since October 2025 each additional one is $82 a year, with an annual cap. A solo agent working one metro usually needs two or three. A team calling across a state may need a dozen, and the fee is still smaller than a single statutory damages award.
Once downloaded, the file is matched against your calling list and every match is removed or flagged as uncallable. Then, no more than 31 days later, the download is refreshed and the match is run again, because numbers are added continuously and a number that was clear in August may be registered in September. Registered numbers do not expire. A homeowner who signed up in 2009 is still on the list today. And the list includes cell numbers, which matters for real estate lists more than most, since almost every homeowner number you will ever hold is a mobile.
The registry may be used for one purpose, which is to avoid calling the people on it. Using the download to build, sort, or enrich a list is a violation in its own right.
The two exceptions, applied to real estate
Express written permission. A registered number may be called if the homeowner has given written agreement to receive calls, and the agreement has to include the number to be called and the homeowner’s signature, electronic signatures included. A checkbox on a web form that names the number and says calls are welcome can qualify. A business card handed over at an open house does not, and neither does “sure, call me sometime” on a doorstep.
An established business relationship. The rule recognizes two: a transaction with your company in the last eighteen months, and an inquiry or application to your company in the last three. The relationship is with the company, which is the point agents miss in both directions. Your past clients are callable for eighteen months after closing, and so are your brokerage’s past clients if the relationship ran through the brokerage. An expired seller’s relationship, by contrast, is with the brokerage that held the listing, and it does not transfer to you when the listing fails. A FSBO’s phone number in an advertisement is not an inquiry to you. NAR’s own telemarketing guidance says so directly: a FSBO or expired number on the registry cannot be called to solicit the listing.
The inquiry exception is the one worth understanding well, because it is how a lead form creates a legal calling window. A homeowner who requests a home valuation on your site, asks a question through your listing page, or fills in a form at your open house has made an inquiry, and for three months you may call that number even if it is registered. After three months, absent a transaction or written permission, the window closes. Record the date of every inquiry.
An established business relationship ends early if the homeowner asks you not to call. That request overrides the exception, which is where the second obligation begins.
| The situation | Registered number callable? | Why |
|---|---|---|
| Expired listing, another brokerage held it | No | The relationship was with that brokerage, not yours |
| Expired listing, your brokerage held it, within 18 months | Usually yes | Transaction-based relationship with your company; check your broker’s policy |
| FSBO with a phone number in the ad | No | An advertisement to buyers is not an inquiry to you |
| Homeowner submitted a valuation request on your site 6 weeks ago | Yes, until 3 months from the request | Inquiry-based relationship |
| Same homeowner, 4 months ago, no further contact | No | The inquiry window has closed |
| Past client, closed 14 months ago | Yes | Transaction within 18 months |
| Farm household, never contacted you | No | No relationship of any kind |
| Any of the above, after “please don’t call me” | No | The internal do-not-call request overrides every exception |
Obligation two: your own list, kept for five years
Separate from the national registry, every seller has to maintain a company-specific do-not-call list under 47 CFR 64.1200(d) and 16 CFR 310.4(b)(1)(iii)(A). When anyone you call, registered or not, asks not to be called again, the number goes on that list and it stays there for five years. There is no reset. The request binds your company across every campaign, list and agent, and it survives a list refresh, a CRM migration and a change of dialer.
The internal list is the obligation most often broken, because it depends on the person on the phone recording the request in the moment. The objections piece treats “take me off your list” as an instruction rather than an objection for this reason. Operationally, the outcome has to be one click, it has to suppress the number everywhere and not just in the list that was being dialed, and it has to be impossible to clear by accident. The list-building article covers carrying the flag through a merge, which is the moment it is most often lost.
Two further requirements live in the same paragraph. You must have a written policy for maintaining the list, available on demand. And everyone who dials on your behalf must be trained on it, which for a solo agent means you, and for a team means the inside sales associate who started last week.
Obligation three: proving it
The safe harbor is what turns an accidental call into a defensible mistake. Under 16 CFR 310.4(b)(3), a seller who calls a registered number is not liable if the call was an error and the seller can show that it had written procedures, trained its personnel on them, monitored and enforced compliance, maintained a company-specific do-not-call list, used a version of the national registry obtained within 31 days of the call, and that the call itself was the result of an error rather than a practice.
Read that list as a checklist, because a regulator or a plaintiff’s lawyer will. A document that describes your scrubbing process and your internal list handling, dated. A record that you and anyone who dials for you read it, dated. The download logs showing the registry pulled monthly. The internal list with entry dates. Evidence you check your own compliance, even if it is a quarterly spot-check of twenty dialed numbers against both lists. None of it is difficult. All of it has to exist before the call in question, not after.
This is also where the phrase “my data vendor scrubs it” falls apart. A vendor’s scrub, however good, is not your written procedure, your training, your internal list or your registry download. It can be one input. It cannot be the process, and a list bought scrubbed six weeks ago is outside the 31-day window on the day it arrives if the vendor’s pull was old. Ask the vendor for the date of the registry version they used, and run your own match regardless. The phone sourcing piece covers the rest of what a purchased list does and does not include.
What this looks like on a Monday
The lists for the week are pulled: the fresh expireds, the new FSBOs, the farm segment. Each one is matched against the registry download, which was refreshed within the month, and against the internal list. Matches are flagged as uncallable and stay in the record so nobody re-adds them from another source. Anything with a live inquiry date inside three months is marked callable with the date the window closes. The rest of the list is dialed by a person, inside calling hours, and every request not to be called goes onto the internal list before the next number rings. Once a quarter, twenty dialed numbers are checked against both lists and the result is written down.
That is the entire system. It fits on one page. The four-rule overview places it alongside calling hours, the cell-phone rules and identification, and the compliance guide carries the state detail. The registry is the part everyone has heard of. The list you keep yourself and the paper that proves you keep it are the parts that decide what an accidental call costs.