How to Date a Used PRS by Serial Number

Somebody hands me a PRS across the bench at least once a week and asks the same thing: "What year is this?" Nine times out of ten I can answer before I've even flipped it over, because PRS makes dating one of their guitars genuinely easy once you know the trick. Unlike a vintage Fender or Gibson, where you're cross-referencing pot codes, neck stamps, and fuzzy production ranges, a PRS tells you the year right up front. The whole secret is the prefix.

Here's the short version, and then I'll walk through the exceptions that trip people up.

The one rule that does most of the work

Every PRS serial number starts with a year code. On the USA guitars it's the last one or two digits of the year the guitar was built. On the imported SE guitars it's a letter instead. Everything after that prefix is just a sequential build number — a count of how many of that model line had rolled out the door. That count is useful for splitting hairs, but for a used-buying decision, the prefix is what you care about.

USA Core and set-neck models

On a US-made set-neck PRS — your Custom 22, Custom 24, McCarty, 594, Singlecut, and so on — the serial lives on the back of the headstock, and from 2008 onward it opens with a two-digit year. A serial starting in 19 is a 2019. 22 is a 2022. It really is that blunt. The long string of numbers after it is the sequential number, which PRS uses internally to track production order.

One thing worth saying plainly: the year the guitar was built is what the serial encodes, and that can sit a hair off from how the guitar gets marketed or listed. A guitar finished late in a year sometimes doesn't ship or sell until the next one. So if a listing says 2020 and the serial reads 19, nobody's necessarily lying — the serial is just telling you when it was actually made.

The single-digit trap (pre-2008)

This is the one that catches people. Before 2008, USA PRS serials used a single digit for the year. So a serial that begins with 5 could be 1985, 1995, or 2005. A 7 could be 1987, 1997, or 2007. The prefix alone can't break that tie.

To sort it out, you fall back on the sequential number. PRS publishes approximate serial ranges for each year, and the count climbs steadily over the decades — a mid-'80s guitar has a low four-digit sequence, while a mid-2000s guitar is well into six figures. In practice you rarely have to guess anyway: the model and features usually settle it. But when it really matters on a pricey older piece, I just have the serial registered with PRS or emailed to their support. They'll confirm it.

SE models — the letter code

Most used PRS guitars changing hands today are SE models, and these are the ones I get asked about most, so pay attention here. SE serials don't use a number for the year. They use a letter.

The Korean-built SEs run a clean alphabet: A = 2000, B = 2001, C = 2002, and straight on through U = 2020. So an SE with a serial starting in L is a 2011; an R is a 2017. Simple.

As PRS shifted SE production over to Indonesia, the code changed. Indonesian SEs carry an I- prefix (IA = 2014, IB = 2015, and so on) and the more recent ones use a CTI- prefix (CTID = 2021, up through CTIG = 2024). The two factories overlapped for a stretch, so you'll see both schemes on used guitars from the late 2010s. Don't read "Korea vs. Indonesia" as a quality judgment, either — the newer Indonesian SEs are excellent, and I've set up plenty that played beautifully out of the box.

S2 and CE — the in-between guitars

The S2 line, PRS's US-made mid-tier that launched in 2013, wears its own badge: the serial starts with S2 followed by the sequential number, on the back of the headstock. The year isn't spelled out in the prefix the way it is on the Core guitars, so for an S2 you match the sequential number against PRS's published ranges to pin the year. It's an extra step, but the "S2" up front at least tells you instantly which family you're holding.

The bolt-on CE is the model that's changed its serial habits most over the years. Modern CEs (2016 and later) use the same two-digit year prefix as the Core line. Older CEs — going back to the late '80s — carried a 7 or CE code and hid the serial on the metal neck plate rather than the headstock. So if you're looking at a vintage bolt-on and can't find a number on the headstock, flip it and check the plate.

Where to actually find the number

Half the "my PRS has no serial" panic I hear is just people looking in the wrong spot.

For set-neck, S2, and SE guitars, the serial is on the back of the headstock, stamped or inked into the finish. On older CE and EG bolt-ons, it's engraved on the neck plate. And PRS acoustics tuck theirs onto the label inside the soundhole. If a guitar genuinely has no serial anywhere it should be, that's not a shrug-and-move-on situation — a sanded-off or missing serial is a reason to slow down and start asking harder questions about where the instrument came from.

What the serial won't tell you

Dating a guitar and vetting a guitar are two different jobs, and the serial only does the first one. Here's what it can't do, and I'd rather you hear it from me than learn it the hard way.

It won't authenticate the guitar. Counterfeiters copy serial numbers — often real ones lifted from legitimate guitars — so a "valid-looking" serial on a suspiciously cheap Custom 24 proves nothing on its own. It won't tell you the options, the pickups, or whether someone's been inside the control cavity. And because PRS's own published ranges are labeled approximate, the sequential-number boundaries between years are soft — the serial reliably gives you the year, not a build date down to the month.

So use the serial for what it's good at: confirming the era, sanity-checking a seller's claim, and making sure a "2015" listing isn't quietly a 2009. Then do the rest of your homework on the neck, the frets, the electronics, and the finish. That's where the real money is made or lost on a used guitar.

FAQ

Where is the serial number on a PRS?

On the back of the headstock for set-neck, S2, and SE models; on the neck plate for older CE and EG bolt-ons; and on the label inside the soundhole on acoustics.

How do I read a PRS SE serial number?

The letter at the start is the year. Korean SEs run A (2000) through U (2020); newer Indonesian SEs use an I- or CTI- prefix. The numbers after the letter are just the sequential build count.

My PRS serial starts with a single digit — what year is it?

Single-digit prefixes are pre-2008 USA guitars, and a lone digit repeats each decade (a "5" could be 1985, 1995, or 2005). Use the sequential number, the model, and the features to narrow it down, or register the serial with PRS to confirm.

Can a serial number tell me if a PRS is fake?

No. A serial dates a guitar; it doesn't authenticate one, since fakes copy real numbers. Judge authenticity by build quality, hardware, headstock logo and inlay work, and the overall fit and finish — not by the serial alone.

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Every used PRS that comes through Aeonic Frets gets dated, inspected, and set up before it goes up for sale, so you're not decoding serials in a parking lot to figure out what you're buying. Have a look at what's currently on the bench in our guitars in stock collection.