Apple Serial Number Decoder
Instantly decode your iPhone, iPad, Apple Watch or Mac serial number to reveal the assembly factory location, manufacturing year, and production week.
Enter Apple Serial Number
How Apple Serial Numbers Work
For over two decades, Apple used a deterministic 12-character serial coding system where specific characters encode the assembly factory, year of assembly, and production week:
- Chars 1-3: Assembly plant (e.g.
F2L= Foxconn Zhengzhou, China). - Char 4: Year and half-year of manufacturing (using base-24 alphanumeric cycles).
- Char 5: Exact week of the half-year (1 to 27).
- Chars 9-12: Device model and storage configuration identifier.
Randomized Serials Note: Devices released after mid-2021 (iPhone 13, 14, 15, 16) feature 10-character randomized serials. Our decoder automatically detects randomized formats and directs you to real-time GSMA database lookups.