An RN textile lookup searches the FTC's Registered Identification Number database to name the business that registered the number on a garment's tag. It tells you who, not when, and it never tells you the condition.
That distinction matters. We have watched sellers write "1970s, per RN lookup" in a listing, then take a not-as-described claim when the buyer spotted a modern care label. The lookup is a clue about the maker. It is not a date stamp, and it is not a grade.
What an RN number is, and what a textile lookup returns
RN stands for Registered Identification Number. The Federal Trade Commission issues it to US businesses that make, import, distribute, or sell textile, wool, or fur products. A company can put its RN on the label instead of printing its full name. You will usually see it as "RN 12345" near the fiber content and care text.
A lookup on the FTC database typically returns:
- The legal business name tied to the number
- A business address, which may be outdated
- Sometimes a note about the type of registrant
It does not return a manufacture year, a production run, a factory, or a style. Numbers can also be reassigned, updated, or cancelled, so a result is a starting point you verify against the rest of the tag.
How to run an RN textile lookup
- Find the tag with the number. Check the side seam, the inside back neck, and the waistband. Many garments carry several labels, and only one has the RN.
- Read the digits carefully. Photograph the tag under raking light if the print has faded. A 3 and an 8 are easy to confuse on worn labels.
- Confirm the format. You want "RN" followed by digits. A "WPL" number is a separate wool registration, and "CA" numbers are Canadian identifiers. They are not searched the same way.
- Open the FTC's RN database and search by the RN number.
- Record the business name and address in your notes along with the tag photo.
- Cross-check the result against the brand label. If the registrant is a parent company or private-label manufacturer, that is normal. If it names an unrelated business, slow down.
If the search returns nothing, the number may be mistyped, cancelled, or from a registrant who never updated their record. Try neighboring digits only to catch a reading error, not to force a match.
What the result can and cannot prove
| Question | Can an RN lookup answer it? |
|---|---|
| Which company registered the tag? | Yes |
| Is the brand label consistent with that company? | Often, as one data point |
| What year was the garment made? | No |
| Is the item authentic? | No, not on its own |
| What condition is it in? | No |
An RN is useful for ruling things out. A number that belongs to a company that never made that kind of product is a flag. A number that matches the brand's known manufacturer is mildly reassuring. Neither is proof. Our authenticity check guides cover the other signs you stack alongside it: hardware, stitching, fiber content, and label construction.
Using the lookup for era clues without overclaiming
RN numbers were issued in roughly ascending order starting in the late 1950s. Lower numbers generally came from earlier registrations. That gives you a rough lower bound: a tag with an RN cannot predate the program. But a company can keep using an old number for decades, so a low number does not mean an old garment.
Better era evidence comes from combining signals:
- Care label format: a full set of care symbols points to later production
- Fiber content wording and country of origin lines
- Union labels, size systems, and zipper branding
- The registrant's own history, if the business name shows when it operated
In a listing, write what you can support. "Tag registered to [company name]" is accurate. "Made in 1974" is a guess unless several signals agree. If you are unsure, say "vintage-style tag, era uncertain" and let the photos carry the rest.
Where condition comes in: the lookup is not the grade
Even a perfect lookup leaves the hardest question open. A garment from a legitimate maker can still be a Fair piece with a failing seam, or a clean NWOT. GradeThread scores condition on a 1.0–10.0 scale across five factors, and none of them depend on who registered the tag:
- Fabric Condition: thinning, fading, pilling, brittleness
- Structural Integrity: seams, shoulder and underarm stress points, holes
- Cosmetic Appearance: stains, discoloration, marks
- Functional Elements: zippers, buttons, snaps, elastic
- Odor & Cleanliness: smoke, storage smell, washability
Those factors map to the tiers buyers recognize: NWT, NWOT, Excellent, Very Good, Good, Fair, and Poor. A rare maker's tag may raise interest, but it does not move a Good garment into Very Good. Price follows condition first. We have seen sellers anchor on provenance and lose a week of sell-through because the listing buried a Cosmetic Appearance defect.
Add the lookup to your listing workflow
Keep it fast. A lookup takes a minute once you have a clear tag photo. Use it on items where the brand label is missing, faded, or ambiguous, and on pieces you are considering buying at a premium.
- Photograph the RN tag and the brand label together, plus the care label.
- Put the registrant name in your private notes or item specifics only if it is verified.
- Describe condition separately, with defect close-ups, so the era story never substitutes for the condition story.
On eBay, accurate item specifics and a clean condition description cut the odds of a not-as-described case. On Poshmark and Mercari, the same photos support your side if a buyer disputes.
Try it on one garment
Run an RN textile lookup on the next unlabeled piece in your pile, then grade the same garment so the maker and the condition both sit in the listing. Upload one item to GradeThread and you will get a 1.0–10.0 grade, a five-factor condition report, and a certificate buyers can verify.