macOS Serial Number - HackTricks

# macOS Serial Number

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## Basic Information

Apple devices post-2010 have serial numbers consisting of 12 alphanumeric characters, each segment conveying specific information:

- First 3 Characters: Indicate the manufacturing location.
- Characters 4 & 5: Denote the year and week of manufacture.
- Characters 6 to 8: Serve as a unique identifier for each device.
- Last 4 Characters: Specify the model number.

For instance, the serial number C02L13ECF8J2 follows this structure.

### Manufacturing Locations (First 3 Characters)

Certain codes represent specific factories:

- FC, F, XA/XB/QP/G8: Various locations in the USA.
- RN: Mexico.
- CK: Cork, Ireland.
- VM: Foxconn, Czech Republic.
- SG/E: Singapore.
- MB: Malaysia.
- PT/CY: Korea.
- EE/QT/UV: Taiwan.
- FK/F1/F2, W8, DL/DM, DN, YM/7J, 1C/4H/WQ/F7: Different locations in China.
- C0, C3, C7: Specific cities in China.
- RM: Refurbished devices.

### Year of Manufacturing (4th Character)

This character varies from 'C' (representing the first half of 2010) to 'Z' (second half of 2019), with different letters indicating different half-year periods.

### Week of Manufacturing (5th Character)

Digits 1-9 correspond to weeks 1-9. Letters C-Y (excluding vowels and 'S') represent weeks 10-27. For the second half of the year, 26 is added to this number.

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> Support HackTricks
> - Check the subscription plans!
> - Join the 💬 Discord group or the telegram group or follow us on Twitter 🐦 @hacktricks_live.
> - Share hacking tricks by submitting PRs to the HackTricks and HackTricks Cloud github repos.