Clothing Label Codes Explained: a Guide for Resellers and Thrifters

If you flip over a clothing tag and see a jumble of letters, numbers, or symbols that mean nothing to you, you're not alone. For resellers and thrifters, those little codes printed on labels can be the difference between pricing a $5 shirt correctly and accidentally selling a vintage designer piece for pocket change. Understanding clothing label codes helps you identify manufacturers, determine a garment's country of origin, and spot quality pieces faster than anyone else on the thrift store floor. This skill directly impacts your profit margins and saves you hours of guesswork.

What Are Clothing Label Codes and Where Do You Find Them?

Clothing label codes are printed or woven identifiers found on the tags inside a garment. They typically appear on the main brand label, the care instruction tag, or a separate manufacturer's label sewn into a seam. These codes can include RN numbers (Registered Identification Numbers issued by the FTC), garment maker codes, country of origin codes, and sometimes proprietary batch or style numbers used by the manufacturer.

An RN number, for example, is a five- to six-digit number assigned by the United States Federal Trade Commission to companies that manufacture, import, or sell textile products. If you see "RN 12345" on a label, that number traces directly back to the company that made or brought that garment into the country. You can look these up in the FTC's public database to identify who made the piece.

Some labels also carry CA numbers (used in Canada), or manufacturer-specific alphanumeric codes that only make sense once you learn the brand's internal system. If you want a deeper breakdown of how to spot and read these on an actual tag, identifying garment maker codes on clothing labels walks through the visual process step by step.

Why Should Resellers and Thrifters Care About These Codes?

Knowing how to read label codes gives you an edge in several real situations:

Authenticating vintage pieces. Older garments often lack modern branding cues, but their RN numbers and maker codes can confirm whether a piece is legitimately from a specific era or manufacturer.
Identifying quality manufacturers. Some factories produce garments for multiple brands. When you recognize a maker code, you can spot high-quality construction even under an unfamiliar or missing brand name.
Spotting fakes. Counterfeit clothing often has mismatched or fabricated label codes. If a "designer" jacket has an RN number that points to a random import company in a different industry, that's a red flag.
Pricing accurately. Understanding the origin and manufacturer of a garment helps you price it fairly in online marketplaces, which builds your seller reputation over time.

For thrifters who resell on platforms like Poshmark, eBay, or Depop, this knowledge translates directly into money. A garment that looks unremarkable at a glance might carry the code of a respected manufacturer, bumping its resale value significantly.

How Do You Read an RN Number on a Clothing Label?

An RN number is usually printed near the bottom of a tag, often near the care instructions or fiber content information. It will appear as "RN" followed by a number, or sometimes just the number alone if it's a well-known registration.

To look one up, visit the FTC's RN database and enter the number. The search will return the company name and address associated with that registration. This is free and takes seconds. Many resellers keep a tab open on their phone while they shop thrift stores so they can check codes in real time.

One thing to watch: some brands reuse RN numbers or register multiple labels under a single number. So the result might show a parent company rather than the specific sub-brand. Cross-referencing with the garment manufacturer identification database organized by country can help narrow things down when the RN result is vague.

What Do the Country Codes on Labels Actually Mean?

Every garment sold in the United States is required to list its country of origin. You'll usually see this as a simple statement like "Made in Vietnam" or "Product of Bangladesh." But some labels also carry two-letter ISO country codes or customs codes, especially on tags meant for international shipping or wholesale.

For resellers, country of origin matters for a few reasons:

Perceived quality. Some buyers specifically look for garments made in Italy, Japan, Portugal, or the United States, associating those origins with higher craftsmanship.
Ethical sourcing preferences. Certain buyers on resale platforms actively avoid products from countries with poor labor practice records.
Vintage identification. Older garments made in countries like Hong Kong (pre-1997), Yugoslavia, or West Germany immediately suggest a specific era, which can increase collectible value.

Country codes alone won't tell you everything, but combined with maker codes and brand information, they paint a much clearer picture of a garment's story and value.

What Are Garment Maker Codes and How Do They Differ from Brand Names?

A garment maker code identifies the factory or company that physically produced the clothing, which is not always the same as the brand on the tag. Many well-known brands outsource production to third-party manufacturers. A single factory in Portugal, for instance, might produce garments for ten different fashion labels.

When you learn to read maker codes, you start recognizing the same manufacturers across different brands. This is especially useful when thrifting because you might find a no-name brand that was made in the same factory as a premium label. The construction quality, stitching patterns, and materials will often be comparable.

Maker codes typically appear as short alphanumeric strings near the care label or on a separate tag. They're not standardized the way RN numbers are, so decoding them sometimes requires brand-specific knowledge. Our breakdown of clothing label codes for resellers and thrifters covers the most common code formats you'll encounter in the wild.

What Are the Most Common Mistakes When Reading Label Codes?

Resellers who are new to label codes often run into the same problems:

Confusing style numbers with manufacturer codes. A style number is a product-specific identifier used for inventory. It tells you about the garment model, not who made it. Don't mistake it for an RN or maker code.
Assuming the brand name on the tag is the manufacturer. As explained above, the brand and the maker are often two different companies. Always check the RN number if you want to know who actually produced the piece.
Ignoring codes on garments with missing or cut tags. Some thrifters skip items with partially removed labels. But maker codes or RN numbers sometimes appear on secondary tags in side seams or hem areas that resellers forget to check.
Over-relying on a single code. No single code tells the full story. Use the RN number, country of origin, fiber content label, and care instructions together to build a complete profile of the garment.
Not verifying codes that look suspicious. If an RN number doesn't return results or points to a company in an unrelated industry, the garment might be counterfeit. Always cross-check.

How Can You Build a Quick Reference System for Label Codes?

Experienced resellers don't memorize every code. Instead, they build simple systems that speed up their workflow:

Bookmark the FTC RN lookup tool on your phone browser for instant access while shopping.
Keep a spreadsheet or note of commonly encountered maker codes and which brands they're associated with. Over time, you'll recognize patterns without needing to look them up.
Take photos of labels when you're unsure. Research them at home rather than spending too long in the store aisle.
Join reseller communities on Reddit, Facebook groups, or Discord servers where members share label code knowledge and crowdsource identifications.

If you're building custom labels or care tags for your own clothing brand or upcycled pieces, using the right typeface matters too. A good label font like Vintage Label can give your tags an authentic, professional look that buyers notice.

What Should You Do Next?

Start with this practical checklist the next time you hit a thrift store or sort through a clothing lot for resale:

Flip every garment over and locate all tags, including side seam labels and hem tags.
Look for the RN number, usually printed near care instructions, and plug it into the FTC database.
Note the country of origin and write it down alongside the brand name.
Check for any secondary maker codes, especially on garments with multiple tags.
Photograph all labels for items you're unsure about, then research them at home using manufacturer databases and reseller forums.
Cross-reference the information. Does the RN number match the brand? Does the country of origin make sense for the brand's known production locations? Do the materials listed align with the price point?
Record everything in a simple spreadsheet so you build a personal reference library over time.

The more labels you read, the faster you get. Within a few weeks of consistent practice, you'll start spotting valuable pieces that other shoppers walk right past. That's the real advantage of understanding clothing label codes it turns a casual thrift trip into a focused sourcing strategy.