The most repeated rule about PRS serial numbers is wrong for most of the guitars it gets applied to. You will read, on forums and on decoder sites (and, until today, on this page), that the year prefix is followed by a production count that resets every January. On a USA set-neck PRS it does not. The number after the year is a running total that started at 0001 in 1985 and has climbed past 397,000, which means the second half of the serial often tells you more than the first.
That correction matters because the year prefix on its own is ambiguous. A single “5” can mean 1985, 1995 or 2005. The sequence number is how you tell them apart.
Everything below is checked against the year identification tables PRS publishes on its own support site, which were last updated in August 2026. Where those tables have gaps or typos, I say so.
Reading the plate on our own 1997 CE 22
The photo at the top of this page is the back of the red CE 22 that has appeared on this site since 2020 (the full review is here). Because the CE is a bolt-on, the serial is not on the headstock. It is stamped on the neck plate, and as best the photo resolves it, it reads 7 CE16616.
Decoding it takes three steps:
- 7 is the year prefix. On a pre-2008 PRS a single digit is the last digit of the year, so the candidates are 1987, 1997 or 2007.
- CE is the model code. Bolt-on CE guitars carried a “7” model code from 1988 and switched to “CE” around 1998.
- 16616 is the running CE count. PRS’s table puts CE numbers 14681 to 17130 in 1997, so the guitar is a 1997.
The CE line did not exist in 1987, and a 2007 CE would sit around 31801 to 32783, so the sequence settles the question on its own. One small detail is worth noticing: the official table only shows the “CE” code from the 1998 range onward, yet this 1997 plate already wears it. PRS calls its ranges “approximate,” and real guitars bear that out. Treat the tables as a strong guide, not a court record.
USA set-neck guitars: the running count
On a set-neck model (Custom 24, McCarty, Singlecut, DGT and the rest of the Core line), the serial is on the back of the headstock. Through 2007 the prefix is one digit. In 2008 PRS moved to two digits, so a 2008 guitar starts “08” and a 2019 guitar starts “19” (PRS Support).
Here is a selection of the approximate set-neck ranges from PRS’s table:
| Year | Approx. sequence range | Built that year (approx.) |
|---|---|---|
| 1985 | 0001 to 0400 | 400 |
| 1990 | 7601 to 10100 | 2,500 |
| 1995 | 20901 to 24600 | 3,700 |
| 2000 | 44500 to 52199 | 7,700 |
| 2005 | 92556 to 103103 | 10,500 |
| 2008 | 132402 to 146419 | 14,000 |
| 2014 | 206060 to 215491 | 9,400 |
| 2019 | 271079 to 298384 | 27,300 |
| 2024 | 375043 to 397950 | 22,900 |
The third column is my own arithmetic from PRS’s ranges, and it doubles as a short history of the company: roughly 400 guitars in the first Annapolis year, steady growth after the 1996 move to Stevensville, Maryland (Wikipedia), and a peak of about 27,000 Core set-necks in 2019.
Now the ambiguity cases:
- “0 48213” could be 1990 or 2000 going by the prefix. The 1990 range tops out at 10100, and 48213 sits squarely inside 2000’s 44500 to 52199. It is a 2000.
- “5 22870” could be 1985, 1995 or 2005. A 1985 guitar would be under 400 and a 2005 would be above 92,000. It is a 1995.
- “08 140377” is 2008 by both the prefix and the range. A two-digit prefix that starts with zero only exists from 2008 on, so nothing before that can carry one.
Those three serials are illustrations of the format, not real guitars. Run any serial you are checking through the same test: does the sequence fall inside the range for the year the prefix suggests?
Two flaws in the official table
PRS prints the 2023 range as “035906 to 363798.” The leading zero is almost certainly a typo for 354906, which would follow on from 2022’s last number (354905). There is also a gap between 2023’s end (363798) and 2024’s start (375043). A guitar numbered in that gap is not automatically suspect; it simply falls where PRS has not published a boundary. The table also stops at 2024, so for anything built in 2025 or 2026, the two-digit prefix is your guide and PRS support is your confirmation.
Bolt-ons and basses: the code after the year
Older bolt-on guitars and all the early basses add a model code between the year and the sequence, and their serials sit on the neck plate unless noted (PRS Support):
| Model | Years | Code | Where |
|---|---|---|---|
| CE (bolt-on) | 1988 to 2008 | 7, then CE | Neck plate |
| EG | 1990 to 1995 | 5 or EG | Neck plate |
| Swamp Ash Special | 1997 to 2009 | 8, then SA | Neck plate |
| Set-neck bass | 1986 to 1991 | 9 | Headstock |
| Bolt-on bass | 1989 to 1991 | 4 | Neck plate |
| Electric Bass | 2000 to 2004 | EB | Headstock |
Two traps live in this table. First, the model codes (7, 5, 8, 9 and 4) are digits that also serve as year prefixes, so an early plate can show two numbers side by side and you have to know which is which. The year comes first, as our 1997 plate shows. Second, PRS notes that the first 200 Swamp Ash Specials received CE serial numbers, so a CE-coded plate on a Swamp Ash body is not necessarily a swapped neck.
When the CE returned in 2016, PRS dropped the separate code system and gave it the same two-digit year prefix as everything else (PRS Support). If you are shopping between eras, our look at the current bolt-on Swamp Ash Special and the new PRS Tekton shows how far the bolt-on idea has moved since that 1997 plate.
SE serials use letters, and one letter is a trap
PRS launched the SE line in 2000 with World Musical Instrument Co. in Korea. Indonesian SEs appear in PRS’s tables from 2014, and Wikipedia dates the wider move to Cor-Tek factories in Indonesia and China to 2019 (Wikipedia). The SE serial is on the back of the headstock, and the year is the letter prefix, not a digit.
Korean SE guitars use one letter, running A for 2000 through U for 2020. So E is 2004, K is 2010, P is 2015.
Indonesian SE guitars use two letters, IA (2014) through IE (2018), then a CT prefix: CTIA for 2018, CTIB for 2019, and on through CTIG for 2024. The Dutch serial archive at Guitarinsite credits Cor-Tek’s plant in Dalian, China, with the SE acoustics, which carry the same CT prefix, so the CT codes line up with the Cor-Tek era.
The trap is the letter I. On a Korean SE, I alone means 2008. On an Indonesian SE, I is the first letter of a two-letter code. Look at what follows it:
- I followed directly by digits: Korea, 2008.
- I followed by a second letter (IA, IB, IC…): Indonesia, 2014 to 2018.
The O for 2014 can also be misread as a zero, which would point you at a USA guitar that does not exist. SE guitars also print who built them and where on the headstock or label, which USA Core guitars do not. If the serial says one country and the label says another, stop and ask questions.
SE acoustics made in China follow their own pattern, CTCA (2017) through CTCG (2023), on the label inside the soundhole.
S2, acoustics, amps and cabinets
The rest of the catalog is simpler:
- S2 Series guitars (built in Maryland, with serials beginning in 2013 per PRS’s table) start with “S2” and a running count on the back of the headstock, from S2000001 in 2013 to about S2078569 by the end of 2024. The same caveat applies: PRS lists S2043719 as both the last 2019 and the first 2020 number, and there is a gap between the 2023 and 2024 ranges. The 2024 S2 lineup review covers what changed in those later years.
- USA acoustics start with “A” plus the two-digit year (A09 for 2009), printed on the soundhole label.
- Amplifiers start with “AMP” plus the year and sit on the back panel or a sticker. Speaker cabinets use “SPK” plus the year. Unlike guitars, both of these counts reset each year, which is probably where the “resets every year” myth started.
When the numbers don’t agree
A serial that decodes cleanly is necessary, but it proves less than buyers assume. Counterfeiters copy real serial numbers from listing photos, so a fake can carry a perfectly valid one. What a copied serial rarely matches is everything else: the year it implies, the hardware PRS used that year, the finish options and the model code.
Signs worth a second look:
- Prefix and sequence disagree. A “9” prefix with a sequence in the 80,000s points at 2003 or 2004, not 1999. That is either a misreading, a replacement neck or a problem.
- The serial is in the wrong place. A set-neck Core guitar with its serial on a neck plate, or a pre-2009 CE with a number on the headstock, does not add up. Our CE 22’s headstock (pictured earlier on this page) is bare on the back, exactly as it should be.
- Format from the wrong family. A letter-prefix SE-style serial on a guitar sold as USA-made, or a USA-style serial with no factory marking on a guitar sold as an SE.
- The price. In 2019 gearnews documented fake John Mayer Silver Skys offered for as little as $299, with no headstock logo, Fender-style knobs labelled “Volume” and “Tone,” and a shallow lower-horn scoop (gearnews).
The final check is free and the most reliable: send the serial and clear photos to PRS support. PRS can tell you whether the number exists in its records and what it was built as, which no third-party decoder can do. Ask before money changes hands, not after.
One last practical note from owning that CE 22: photograph your serial the day you buy a guitar, plate or headstock, in sharp focus. Stamped digits wear, and reading “16616” off a 2020 photo of a 1997 plate is harder than it should be.