Louis Vuitton Authentication Expert
Watch authentication specialist. Focuses on movement inspection, case finishing, and serial verification.
Last updated September 2026 · Published February 2026 · Contact
What Louis Vuitton Date Codes Actually Are
Louis Vuitton uses "date codes" — not serial numbers. The distinction matters: the date code doesn't uniquely identify an individual bag (LV doesn't use a one-bag-one-number system). Instead, it encodes the factory location and production period. Multiple bags with the same date code exist and are all potentially authentic.
The code is stamped on a leather tab inside the bag, directly on the interior lining, or inside a pocket. The exact placement varies by model and era. Starting in 2021, Louis Vuitton replaced visible date codes with internal RFID chips — so a brand-new bag with no visible code is completely normal and not a fake tell.
Understanding these codes is genuinely useful for authentication because: (a) a code in the wrong format for the claimed era is a red flag, (b) a code that contradicts the "Made in..." country label is suspicious, and (c) a code that predates a model's actual introduction is impossible.
Date Code Formats by Era
Before 1982
No codes were used. Louis Vuitton bags from the 1960s and 1970s have no date code. Authentic — a missing code on a vintage piece is expected, not suspicious.
1982 – Mid-1980s
3–4 numeric digits only. Example: 834 = 1983 (83), April (4). The format is [last two digits of year][month number]. Sometimes written as 8304 where 83 = 1983 and 04 = April.
Mid-1980s to 1989
Factory letters introduced alongside the digits. Example: VI 883 = France (VI factory), August (8) of 1983 (83). Format: [factory letters][year digits][month digit].
1990–2006
Standardized to two factory letters + four digits. The digits encode month and year in an alternating pattern: 1st and 3rd digit = month, 2nd and 4th digit = year. Example: SP1025 → S and P identify the factory (France), 1st digit 1 and 3rd digit 2 = month 12 (December), 2nd digit 0 and 4th digit 5 = year 05 = 2005. So December 2005, made in France.
2007–Early 2021
Same two letters + four digits format, but digits now encode week and year rather than month and year. 1st and 3rd digits = week of year, 2nd and 4th digits = year. Example: FL3089 → Factory FL (France), 1st digit 3 and 3rd digit 8 = week 38, 2nd digit 0 and 4th digit 9 = year 09 = 2009. So week 38 of 2009, made in France.
2021–Present
Date codes discontinued and replaced by NFC/RFID chips embedded in the bag's lining. No visible code on a new bag is normal. Unlike the date code, the chip can be read by anyone with a smartphone — scanning it opens a public product page on louisvuitton.com confirming the exact model, colorway, and production country. See our complete guide to scanning and verifying the LV chip for step-by-step instructions on iPhone and Android, plus what a genuine result looks like.
Use our free LV Date Code Checker to instantly decode your bag's factory and production year.
Check My Date Code →Factory Code Reference by Country
| Country | Factory Codes |
|---|---|
| France | SP, FL, AR, DU, CT, MB, MI, NO, RI, SD, TH, TR, VI, LM, LA |
| Spain | CA, LO, UB, LB, GI, BC |
| Italy | FO, MA, RC, RE |
| USA | SD, TX, OS, FC, FH |
| Switzerland | FA, DI |
| Germany | LP |
Important: The factory code must match the "Made in [Country]" stamp inside the bag. A code starting with CA (Spain) on a bag stamped "Made in France" is contradictory and suspicious.
Red flag
A factory prefix that contradicts the "Made in" label is one of the few things a date code settles on its own. LV does not stamp a Spanish factory code into a bag finished in France, so a mismatch between the two is decisive, not a curiosity to weigh against other evidence.
Worth knowing
The decoder gives you the production period and factory, not the verdict. A code that decodes cleanly narrows down when a bag was made; it says nothing about whether the object holding it is genuine.
How to Use the Date Code in Authentication
The date code is a starting point, not a conclusion. Here's how to apply it:
Step 1 — Verify the format matches the claimed era. If someone tells you a bag is from 1998, the code should be in the two-letter + four-digit format where digits encode month/year. A week-based format on a claimed 1998 bag is wrong.
Step 2 — Check the country consistency. The factory code prefix should match the "Made in..." label. Mismatches indicate tampering or a fake.
Step 3 — Cross-reference with model history. Every LV model has a known introduction date. A Neverfull with a date code from 2003 is impossible — the Neverfull wasn't introduced until 2007. Check when the specific model was first produced.
Step 4 — Don't stop at the code. Fakes copy correct codes. After verifying the code format, continue with physical authentication: canvas texture, hardware weight, stitching quality, heat stamp depth.
Why the Same Code Can Appear on Both Authentic and Fake Bags
Counterfeiters copy real date codes from genuine bags. This is common. A "correct" code tells you the format is right — it doesn't prove the bag is genuine. Physical authentication markers are always required alongside code verification.
This is also why a code that looks "too perfect", printed too neatly or too boldly compared to the surrounding leather, can itself be a red flag. Authentic codes are fine and subtle; fakes sometimes over-engrave them to make them more visible and "convincing."
| What you are looking at | Authentic | Counterfeit |
|---|---|---|
| Impression depth | Shallow and fine, sits level with the grain, often needs raking light to read | Deep and dark, over-engraved so it reads clearly in any light |
| Character shape | Consistent stroke weight with slight irregularity from heat and pressure | Uniform and printed-looking, occasionally visibly digital |
| Placement | Tucked into a seam, a tab, or a pocket wall, sometimes awkward to reach | Centred and convenient, positioned for a listing photograph |
| Ageing | Fades in step with the surrounding vachetta or lining | Crisp and dark on a bag whose leather shows years of patina |
Red flag
A code that is darker, deeper, and better preserved than the leather around it. Genuine stamps age with the material they sit on, so a pristine code on a visibly worn bag is a contradiction the seller has to explain.
Common Code Decoding Mistakes
Month/Week confusion: People frequently misread 1990–2006 codes using the week-based formula (post-2007). The decoding method changed — applying the wrong formula produces an incorrect date and creates false suspicion about authentic bags.
Dismissing early codes: Bags from the early 1980s sometimes have codes that produce no result in online databases. This doesn't mean they're fake — early numeric-only codes are poorly documented in digital tools.
Assuming French manufacture is more "authentic": LV produces in France, Spain, the USA, Germany, and Switzerland. All are authentic. A Spanish-made bag is not less genuine than a French one.
Where the Date Code Sits by Model
Placement varies enough that "I cannot find a code" is more often a search problem than a authenticity problem. On a Speedy, look for a small leather tab inside the bag near the zipper end, frequently sewn into the side seam rather than hanging free. On a Neverfull, check the interior pocket, usually on the pocket wall rather than the bag lining. On Pochette and Multi Pochette pieces the code is often stamped directly onto the interior canvas, not on a tab at all. On wallets and small leather goods it tends to sit under a card slot or inside the note compartment, which means emptying the piece before you conclude anything.
On older bags, the tab can be tucked so far into a seam that it only becomes readable when the lining is pulled taut. Codes also wear: vachetta darkens and a shallow stamp can fade into it almost completely. Raking light across the surface at an angle, rather than pointing a torch straight at it, brings back codes that look absent head-on. Pieces made before 1982 never carried a code at all, so on genuinely vintage stock the search ends before it starts; our guide to buying vintage Louis Vuitton covers what to check instead when there is no code to read.
What Replaced the Date Code After 2021
Louis Vuitton stopped stamping date codes during 2021 and moved to an NFC chip sewn into the lining. This is the most common source of false alarm we see: someone checks a bag bought new in 2023, finds no code anywhere, and assumes the worst.
Nothing is missing. The chip carries what the stamp used to, and more. Unlike a date code it is not something you decode by hand, you scan it. Any NFC-capable phone will read it, and a genuine chip resolves to a product page on louisvuitton.com naming the model, colourway, and production country. A chip that resolves nowhere, or to a page whose model does not match the bag in front of you, is a stronger signal than a stamped code ever was.
Two limits are worth knowing. The chip proves the chip is registered, not that the chip and the bag started life together, so one transplanted into a counterfeit body will still scan. And the manufacturer byte in the raw chip data identifies who made the blank tag, not who made the bag; blank NXP tags are available to anyone. Our guide to scanning and verifying the LV chip covers the scan on iPhone and Android and shows what a genuine result looks like.
Worth knowing
If a bag was bought new in 2021 or later and has no visible date code, that is expected, not suspicious. Use the chip instead. If it was sold to you as pre-2021 and has no code, that is a different conversation, and the checks above apply.
Authentication Checklist
- Code present (or absent on post-2021 bags — both are normal)
- Format matches the correct era for the bag's claimed age
- Factory letter prefix matches the "Made in..." country label
- Code date doesn't predate the model's known introduction date
- Code appearance — fine and subtle, not over-engraved
- Physical markers (canvas, hardware, stitching) also pass inspection
FAQ
What does it mean if there's no date code on a pre-2021 bag?
A missing code on a post-1982 bag that should have one is a red flag but not automatic proof of a fake. Codes can wear off on very old bags, be placed in an unusual location, or — in rare cases — be absent due to a production anomaly. If the code is missing, evaluate all physical markers more carefully and consider professional authentication.
Can I check a Louis Vuitton date code myself?
Yes. Our Louis Vuitton date code tool decodes all formats from 1982 to 2021, identifies the factory country, and shows the production year or week. For very early 1982–1989 numeric codes, the tool notes the limited documentation available for those formats.
Do LV bags made in Spain have lower quality than French ones?
No. Louis Vuitton maintains the same quality standards across all production locations. The choice of where to produce a particular model is a logistical decision, not a quality decision. Spanish-made LV bags are fully authentic and consistent with the brand's standards.
Does a date code from 2015 mean the bag was brand new in 2015?
It means it was produced in that period — but production date and sale date can differ. LV produces bags in advance of demand, so a 2015 production code doesn't mean the bag was sold in 2015. It could have sat in inventory or been purchased later.
What should I do if the date code format doesn't match any era?
Cross-reference it again — month/week decoding confusion is the most common error. If after correcting for era the format is genuinely wrong, that's a significant authentication concern. Have the bag examined by a professional who can look at physical markers alongside the code.
