USPS Change-of-Address Data: What It Can and Cannot Tell You
Search results promise that a forwarding order will hand you somebody’s new address. The Postal Service’s own licensing rules say otherwise: change-of-address data moves through a closed, audited pipeline whose license text forbids looking up one person, and the regulation covering address requests has no door in it marked “curious member of the public”. Here is how that pipeline is built, what the rule at 39 CFR 265.14 genuinely allows, and where a current address is honestly obtainable instead.
The honest one-paragraph answer
You cannot query change-of-address data, and neither can we. The dataset behind every “NCOA” claim is NCOALink, licensed by the Postal Service to certified companies that run whole mailing lists through it to correct addresses before postage is paid. The Postal Service’s licensing announcement of 19 November 2020, Reminder on the Sole Purpose of NCOALink, states that queries of individual name and address combinations are specifically prohibited and must not be allowed under any circumstances, and that certified software has to reject any list of fewer than 100 unique names and addresses. Separately, 39 CFR 265.14 governs asking USPS directly — and for an individual or a family, the new address goes only to a government agency, a person empowered to serve legal process, a law enforcement agency working through the Postal Inspection Service, or a requester holding a court order. Everything a member of the public can lawfully do runs through other records entirely, which is where the rest of this page goes.
Change-of-address data, in about a minute
A short walk through what the forwarding system records, who is licensed to touch it, and why a single-name lookup is not on the menu.
One minute, thirteen seconds
What the NCOALink product actually is
Six license categories, a certification process, and a data window that differs depending on which license a company signed.
USPS describes NCOALink as a secure dataset of roughly 160 million permanent change-of-address records, built from the names and addresses of individuals, families and businesses who filed a change of address. Its stated function is narrow: it lets a mailer run a list through matching software and correct the addresses on that list before the mail is tendered, so fewer pieces come back undeliverable. It was never designed as, and is not sold as, a lookup service.
Access is granted through six license categories, each requiring certification and the use of CASS Certified matching software. The category decides how much history a company receives. A Full Service Provider, which must do at least 51 percent of its processing for unrelated third parties, receives 48 months of change-of-address data on a weekly basis. A Limited Service Provider receives 18 months, also weekly. An End User Mailer, restricted to processing its own house files and forbidden from processing for parents, subsidiaries or affiliates, receives 18 months on a monthly cycle. The remaining categories cover software developers, interface distributors and mail-processing-equipment operators.
The gap between the 18-month and 48-month windows is bridged by an add-on called ANKLink, and its design is the clearest statement of intent in the whole system. ANKLink is offered only to Limited Service Providers and End User Mailers, it covers moves that occurred in months 19 through 48, and USPS is explicit that it does not return the new address. It reports that a move happened and gives the effective date. A mailer can then suppress that record or take its business to a Full Service Provider. The product deliberately answers “they moved” without answering “to where”.
License fees run at the scale you would expect of infrastructure rather than a consumer tool: USPS publishes an annual Full Service Provider license fee of $436,300 and a Limited Service Provider fee of $36,440, with the first year prorated. Nobody buys that to settle one question about one person.
The license itself forbids the thing people want from it
A 2020 USPS licensing announcement, and the Privacy Act mechanism sitting underneath every processed list.
On 19 November 2020 the Postal Service’s Licensing and Certification Department issued a licensing announcement headed Reminder on the Sole Purpose of NCOALink, addressed to Full and Limited Service Providers, End Users, Software Developers and mail-processing-equipment licensees. The Postal Service publishes it on its PostalPro site, listed among the NCOALink licensing announcements as “Sole Purpose of NCOALink – Reminder (November 19, 2020)” and carried as the file SOLE_PURPOSE_OF_NL.pdf, so the full two-page text can be retrieved and read against what follows. Three of its statements settle the question this page exists to answer. First, a “Mailing List” is defined in every NCOALink license agreement as at least 100 unique names and addresses, and duplicating a record to pad a list up to that count is not allowed. Second, quoting the NCOALink software performance requirements at sections 4.6 and 4.5, certified software “must be capable of rejecting address lists of less than 100 unique names and addresses” — the floor is enforced in code, not by trust. Third, and most directly: queries of individual name and address combinations are specifically prohibited and must not be allowed under any circumstances.
The same announcement closes the resale route. Under sections 13.6 and 13.7 of the license agreement, a licensee must restrict access to address information to employees who need it to perform work under the agreement, and addresses obtained through NCOALink processing cannot be shared with parties outside the licensee’s own organization. Unauthorized disclosure is priced at treble the current annual fee charged under that agreement, or treble the revenue earned during the breach, whichever is greater. So even a licensee that matched your person on a legitimate 100-name list could not lawfully forward you the result.
Underneath all of it sits the Processing Acknowledgement Form. Every service-provider licensee must obtain a signed PAF from each customer before processing anything, and the USPS guide to those forms explains why in one sentence: the PAF is what lets USPS and the mailing industry comply with the Privacy Act of 1974, which bars an agency from disclosing a record contained in a system of records absent a written request by, or the prior written consent of, the individual the record concerns. The PAF must be renewed annually and retained for six years, and USPS names the abuse case it is guarding against outright — a mailer using the processing results to build a list of new movers.
That is the whole architecture in one line: forwarding data is disclosed to a mailer for the purpose of delivering mail the mailer was already sending, under a signed, renewable, auditable acknowledgement, and for nothing else.
Asking USPS directly: what 39 CFR 265.14 permits
The regulation governing requests for a named customer’s address — including the exception nearly every competing article gets wrong.
NCOALink is the industrial route. The other route is simply asking the Postal Service, and that is governed by 39 CFR 265.14, the rule on disclosing names and addresses of specifically identified postal customers. It draws one sharp line at the outset. The new address of a business or organization that filed a permanent change of address will be furnished to any person on request. The new address of an individual or family will not — it is released only in the narrow circumstances the rule then lists.
Those circumstances are: a federal, state or local government agency certifying in writing that it needs the information to perform its duties; a person empowered by law to serve legal process, or the attorney for a party on whose behalf service will be made, or a party acting for themselves, each supplying a specific written certification; compliance with a subpoena or court order, with the rule adding that change-of-address information not otherwise disclosable may be released only pursuant to a court order; and a law enforcement agency making an oral request through the Postal Inspection Service after that service confirms a criminal investigation is under way. A court official may obtain a mailing address for jury service. A government agency may ask USPS to verify an address it already holds — and the rule pointedly defines verification as confirming only that mail is currently delivered there, not that the customer actually lives there.
Read that list again for what is missing. There is no exception for a licensed private investigator, an employer, a landlord, a debt buyer, a journalist or a member of the public with a good reason. The claim circulating across skip-tracing blogs that USPS releases forwarding addresses to private investigators is not in the regulation. Where a genuine service-of-process need exists, the requester is the process server, the attorney, or the self-represented party, working under the certification the rule specifies — the route we support as research, never as a document we draft. That work is described on our page for process servers and service-of-process research.
The rule also carries deliberate protections. Where an individual has filed a copy of a protective court order with the postmaster, their address is withheld except as the rule specifically allows. A domestic violence shelter that files a qualifying letter from a state coalition has its address suppressed. Disclosure about an individual is limited to that individual — not to other family members whose names appear on the same change-of-address order. And USPS reserves the right to withhold an address outright for the protection of a person’s personal safety. Those are not accidents of drafting; they are why the system is closed.
Every route to a new address, and who it is open to
Five mechanisms get confused with one another constantly. They return different things to different people.
| Mechanism | Who it is genuinely open to | What comes back |
|---|---|---|
| Public-records address research | Anyone with a lawful purposeOpen to you | A current address with every source named, so you can re-check it yourself |
| NCOALink list processing | Certified licensees, for a customer with a signed Processing Acknowledgement Form | Corrected addresses on a list of 100 or more unique names — never a single-name answer |
| ANKLink flag | Limited Service Providers and End User Mailers only | The fact that a move occurred in months 19 to 48, plus the effective date. No address |
| Address Change Service notices | Enrolled mailers with a USPS business account and a fee arrangement | Corrections on mail the enrolled mailer actually sent, delivered electronically |
| Request under 39 CFR 265.14(d)(5) | Government agencies, process servers, attorneys, self-represented parties, law enforcement | One individual’s address, for the certified purpose only |
| Court order | The catch-all the regulation reserves for change-of-address information that no other paragraph reaches. Obtained through counsel, not through the Post Office counter | |
Only the first row is available to an ordinary person with an ordinary reason, and it is the one we operate. Our skip tracing service works entirely outside the postal pipeline, on records a client could in principle pull themselves given the time and the account access, which is exactly why every result arrives with its sources attached rather than as an unexplained address.
The forwarding clock, and what it stops doing
Timing decides whether any postal signal exists at all — and the classic envelope advice on the internet is out of date.
Standard forwarding runs for 12 months. USPS sells extensions in six, twelve or eighteen-month increments to a maximum of eighteen additional months, and its own forwarding and change-of-address page states that when the forwarding period ends, mail is returned to the sender for six months carrying a label with the new address. What is forwarded is also narrower than people assume: First-Class Mail and periodicals travel free, Priority and Ground Advantage items travel free, Media Mail is forwarded but the recipient pays the onward shipping, and USPS Marketing Mail is not forwarded at all. A promotional catalog arriving at an old address proves nothing whatsoever.
The senders’ side of that system is Address Change Service, and this is where most published advice has quietly expired. Corrections used to be available as hardcopy notices — PS Form 3547 for most mail, PS Form 3579 for periodicals — mailed back to the sender. A final rule published in the Federal Register on 7 February 2023 removed those hardcopy options for Full-Service and Seamless Acceptance mailers effective 9 July 2023, moving them to electronic ACS notices retrieved through the Business Customer Gateway. Mailers outside the Full-Service program were not affected, a distinction the summaries circulating online flatten in both directions. Either way, ACS is an enrolled service with fees, arranged in writing in advance — not a trick you perform with one envelope.
Note also what commenters raised during that rulemaking and how USPS answered, because it is a useful calibration. Publishers argued the electronic feed lags other sources and risks updating a record to a stale address; USPS replied that ACS and manual corrections are generated from the same data source, and that the hardcopy notices were merely slower because they had to be printed and mailed. Neither channel is fresher than the other. Both are as fresh as the underlying forwarding order.
All of which means the postal signal has a short half-life, and a search that begins more than a couple of years after the move will find nothing there regardless of who is asking. Address history assembled from other records does not expire on the same clock, which is the subject of our guide to building out a person’s previous addresses.
Six situations where the postal record is simply silent
A negative result carries almost no information. These are the reasons why.
The order was never filed
Filing a change of address is optional. Someone who told a handful of correspondents directly, or who moved between two addresses they already receive mail at, generates no record at all. Nothing in the dataset distinguishes that person from someone who never moved.
Identity verification failed
Since May 2023 an online change of address requires identity verification, with an in-person alternative at a Post Office. USPS states plainly that a customer who cannot verify either way cannot file at all and must contact senders directly. Those moves leave no forwarding order behind.
It was a temporary order
Temporary orders cover stays from fifteen days up to a year and are meant for students, seasonal absences and stays with family. Only permanent orders populate the NCOALink dataset, so a temporary forward can route a year of mail while leaving the permanent record untouched.
Only one name on a family order
A family order carries several people. The disclosure rule limits any release to the specifically identified individual asked about, and expressly not to other family members whose names appear on the same form. A household that moved together does not become a household you can ask about together.
The address is an agent, not a home
Where mail is delivered through a commercial agent, the rule on Form 1583 lets the public learn one thing only: that the address is an agent’s address. The identities of the people receiving mail there are not disclosable to the public. The record confirms a mailbox, not a residence.
The move is older than the license window
A Limited Service Provider holds eighteen months. Beyond that, an ANKLink flag reports the move and withholds the address, and past forty-eight months even the flag runs out. Older relocations have to be reconstructed from records that do not age out on a postal schedule.
How we work an address without the postal pipeline
Four steps, none of which involve asking the Postal Service a question it is not allowed to answer.
Establish purpose and anchor
We record why the address is needed and confirm it is a purpose we can lawfully act on, then fix the last address that is documented rather than remembered. A shaky anchor produces a confident wrong answer.
Work records that stay open
Court indexes, recorded instruments, assessment rolls, licensing registers and lawful commercial data — sources that remain checkable long after a forwarding order has lapsed and that do not depend on anyone having filed one.
Corroborate across independent sources
One record showing an address is a lead. Two unrelated record systems agreeing, with dates that make sense against each other, is a finding. We report the difference instead of blurring it.
Deliver with the sourcing attached
Each address arrives with the record it came from and the date it was captured, most within 24 hours where the relevant indexes are online. If the file will not support a defensible answer, we say so rather than sell you a guess.
Our own limits, stated plainly
An honest account of a closed records system has to include where our own reach stops.
This is a records-research and skip tracing firm. We are not licensed private investigators, we hold no NCOALink license, and we make no claim to sources unavailable to anyone else. We accept work only where the client has a permissible purpose under the applicable law, and we conduct research from lawful record sources — never by pretexting, impersonating a person or an agency, or misrepresenting who we are to obtain information a records custodian would otherwise withhold. We do not obtain bank balances, account statements, call detail, live device location or the contents of anyone’s private financial or communications records. This page is general information about how a federal records system operates and is not legal advice; whether a particular request qualifies under a particular rule is a question for your attorney.
This firm is also not a consumer reporting agency. Nothing we deliver qualifies as a consumer report within the meaning of the Fair Credit Reporting Act, and it must not be relied on, even partly, when deciding whether to extend credit or insurance, whether to hire or retain someone, whether to approve a rental applicant or screen a tenant, whether to grant a professional license, or for anything else the FCRA governs. Anyone who needs an FCRA-regulated report needs a consumer reporting agency instead, and we say so rather than take the work.
On safety, we decline more than we accept. We do not take work aimed at locating a person who is hiding from the requester, and we do not accept a search where the facts suggest domestic violence, stalking, harassment or a protective order between the parties. Postal change-of-address data is protected for exactly this reason: the regulation suppresses the address of anyone who has filed a protective court order with their postmaster, shields domestic violence shelters, and lets USPS withhold an address outright to protect an individual’s personal safety. We are not going to write a route around a protection built into a federal rule, and this page deliberately contains no method for defeating one. If you are the person whose address is at risk, the useful reading is our guide to keeping a new address private after a move. If someone’s immediate safety is at stake, that is a call to law enforcement, not a records request.
Where the postal trail has genuinely run out, the workable paths are the ones described in our walkthrough for a move with no forwarding order on file, and — where mail is going to an agent rather than a home — our explanation of addresses served by mail forwarding services.
Who asks us about change-of-address data
Six recurring callers, each of whom arrived believing the forwarding system would answer them.
Attorneys and process servers
Holders of the one individual-address exception the rule actually grants, who still need a current address to certify in the first place.
Judgment creditors
Holding an enforceable judgment against a debtor whose mail stopped arriving, with post-judgment deadlines that do not pause for a forwarding order.
Probate and estate researchers
Tracing heirs and beneficiaries whose last known address is a decade old, far outside any postal data window.
Property managers and landlords
Chasing a former tenant over an unpaid balance after the tenancy ended — a collection question, never a screening one, given the FCRA boundary above.
Claims and subrogation teams
Reaching a claimant or a responsible party who relocated mid-file, where the carrier needs a documented address rather than a plausible one.
Families reconnecting
Relatives and old friends who lost touch across a move, where consent is not in doubt and the only obstacle is a cold trail.
Whichever of those describes you, the deliverable is the same and the standard for it is described in our note on how an address is verified before it is reported.
An address you can check, or no charge
If we cannot produce a current address supported by records you are able to inspect for yourself, you do not pay for the search. We would rather return an honest “the file does not support it” than an address nobody can trace back to where it came from. That standard is why this page tells you what the postal system will not do for you instead of implying we have a private door into it.
Change-of-address questions we get asked most
Can I look up someone else’s USPS change of address?
No. For an individual or a family, 39 CFR 265.14 releases a new address only to a government agency certifying it needs the information for its duties, to a person empowered to serve legal process along with attorneys and self-represented parties, to law enforcement through the Postal Inspection Service in a criminal investigation, or under a court order. Business and organization changes of address are different — those are furnished to any person on request.
Does USPS release forwarding addresses to private investigators?
Not as such. This claim is repeated widely and it is not in the regulation. The listed exceptions are government agencies, process servers and the attorneys or self-represented parties they act for, subpoenas and court orders, and law enforcement via the Inspection Service. An investigator who also happens to be a person empowered by law to serve process is being granted the exception in that capacity, under a written certification tied to actual or prospective litigation — not by virtue of holding a license.
What is NCOALink, and can I buy access to it?
NCOALink is the Postal Service’s licensed dataset of roughly 160 million permanent change-of-address records, used by mailers to correct addresses on a list before mailing. There are six license categories, each requiring certification and CASS Certified matching software, with annual fees ranging from five figures to well into six. Even holding a license would not help with one person: USPS prohibits queries of individual name and address combinations outright, and certified software has to reject lists of fewer than 100 unique names and addresses.
How far back does change-of-address data reach?
It depends on the license. A Full Service Provider receives 48 months of data weekly. A Limited Service Provider and an End User Mailer receive 18 months. The ANKLink add-on extends coverage for those two categories across months 19 to 48, but it returns only the fact of a move and its effective date — never the new address. Past four years, the postal record contributes nothing at all.
How long does USPS forward mail after someone moves?
Standard forwarding runs 12 months, extendable in paid six, twelve or eighteen-month increments up to eighteen additional months. USPS states that once forwarding ends, mail is returned to the sender for six months with a label showing the new address. First-Class Mail and periodicals forward at no charge; USPS Marketing Mail is not forwarded at all, so promotional mail still landing at an old address tells you nothing.
What does an “Address Service Requested” endorsement do now?
It is a mailer instruction, not a consumer tool. Ancillary endorsements tell USPS how to treat mail that cannot be delivered as addressed and whether to report a correction. A final rule effective 9 July 2023 removed the hardcopy notice options for Full-Service and Seamless Acceptance mailers, who now receive corrections electronically through Address Change Service. Other mailers were not affected by that change, but ACS in any form requires an enrolled account and a fee arrangement set up in advance.
If there is no change-of-address record, does that mean they did not move?
No, and this is the most costly misreading of the source. Filing is voluntary, temporary orders do not enter the permanent dataset, and since 2023 a person who cannot complete identity verification cannot file at all. A change of address also updates nothing except mail routing — USPS says explicitly that you must still update your driver’s license, voter registration, benefits and financial accounts separately. Absence of a forwarding order is not evidence of anything.
How quickly can you return a current address?
Most searches come back within 24 hours where the relevant court, recording and assessment indexes are online, and longer where a county still requires a manual pull or a records request. We would rather take an extra day and hand you an address with the record behind it than meet a deadline with something you cannot verify.
Skip the closed door. Work the records that are open.
Tell us the last address you can document and why you need the current one, and we will tell you honestly whether the record set supports an answer before you commit to anything. Questions first are welcome — send them through here and a researcher will read them.
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