Serial number dating / Sire

Sire serial number lookup

Find the year a Sire was built, read from Sire’s own numbering scheme.

3 serial formats
BrandSire

Can't read a digit? Type ? in its place. Looked-up serials are kept, never tied to you. How it works

Your answer appears here

Type the serial or code from the instrument. We read it as you type.

Cross-check with a pot code

The number stamped on a potentiometer inside the guitar. It dates the part, not the whole instrument.

Example Sire serials and how they read

Made-up serials in each of Sire’s formats, read by the dater above.

SerialReads asFormat
2N201234562020Gen 2 (2N prefix), Indonesia
181234562018Gen 1 (plain eight-digit), Indonesia
2N25H12345Aug 2025Gen 2 with month letter, Indonesia

How Sire serials date

  • Gen 2 with month letter
  • Gen 2 (2N prefix)
  • Gen 1 (plain eight-digit)

More on Sire serial numbers

Where to find the serial

On the back of the headstock.

How sure is it

Every result carries its confidence. Treat the year as a strong guide, not proof: a serial can be replaced, a neck and body can be from different years, and reissues copy old numbering. For anything that matters, confirm the year against the neck date, the pot codes.

Other brands

This is one of many brands the serial number dater covers.