Look up any Mac serial.
Identify the exact model and year of any Mac from its serial number, including 2021 and newer models no character decoder can read. Works for MacBook Pro, MacBook Air, iMac, Mac mini, Mac Studio, and Mac Pro. Free, and no account needed.
Checking a specific Mac?
Each model line has its own page: where the serial sits on that chassis, every Apple Silicon model identifier, and what sellers are asking right now.
Find the serial on any Mac.
Open About This Mac
On a Mac that boots, choose Apple menu → About This Mac. The serial number is listed with the hardware overview and can be selected and copied.
Read it off the chassis
MacBook Air and MacBook Pro engrave the serial on the underside of the bottom case, in the small print near the regulatory text. Mac mini and Mac Studio print it on the underside of the enclosure, iMac on the underside of the stand's foot, and Mac Pro on the tower frame.
Check the box or invoice
The original box carries the serial on its barcode label, and it appears on the Apple invoice or receipt.
Buying remotely? Ask for both
Ask the seller for a photo of About This Mac and a photo of the serial on the chassis, and check the two match before you pay. A mismatch means the board or the case is not original.
Go deeper on serials.
The complete serial lookup guide
Every way to check an Apple serial, and what each one can and can't tell you.
Post-2021 serials: what changed
Why randomized serials killed every character decoder, and what still works.
Reverse lookup: Model ID, A-number, EMC
Identify a Mac when you have an identifier but no serial.
The hidden endpoint behind legacy decodes
How pre-2021 serials encode the model, and the Apple service that reads them.
Region codes: what LL/A means
The sales-region suffix on a part number, and what it doesn't change.
Order numbers, decoded
What a part number like MNEH3LL/A says about a Mac's configuration.
Serials after a logic-board swap
Why a repaired Mac's serial can go blank or stop matching the chassis.
A1278: four Macs, one chassis
Why the number on the case is not the model, and how to pin the year.
Verify a used Mac: every option
Serial check, coverage check, diagnostics, and reports, compared honestly.
Apple Coverage Check, explained
What Apple's official checker shows, its limits, and how to read the result.
The used-Mac scam guide
The scams that actually happen, and the checks that stop each one.
Serial questions, straight answers.
How do I find a Mac's model from its serial number?
Enter the serial in the box above and Macfax returns the exact model and year, for every Mac including the latest ones. RAM, storage, and chip are not tied to the serial: check About This Mac on the machine to confirm those.
Can I check iCloud or Activation Lock status by serial number?
No. Apple retired its public Activation Lock checker in 2017, and no legitimate service reads lock status from a serial today; sites that claim to are guessing. Check it on the Mac itself before paying.
Can a serial number tell me if a Mac is stolen?
There's no public stolen-Mac registry to query. What protects you: confirm Activation Lock is off, ask for the original proof of purchase, and check the serial on it matches the machine.
How do I check Apple warranty or AppleCare by serial number?
Warranty status lives with Apple, and its official coverage checker is the only real source. Enter the serial there to see warranty and AppleCare coverage; Macfax adds what Apple doesn't show, like the exact model behind a randomized serial and live asking prices.
checkcoverage.apple.com → · Using Coverage Check before you buy →
Where is the serial number on a Mac?
Apple menu → About This Mac shows it on any booting Mac. It's also engraved or printed on the machine itself, on the box barcode, and on the original invoice.
Why can't the model be decoded from a 2021+ serial?
Apple switched to randomized 10-character serials in 2021, so the characters themselves carry no model information: any site claiming to decode them is guessing. Macfax looks the model up by serial instead, which is why it returns the real model where character-decoders can't.
Buying or selling this Mac?
A serial names the model. A Macfax report proves the Mac in front of you is really that machine, in the condition claimed, hardware-signed and verifiable online.