Letter-prefix import (2000+)
2000+Single letter factory code + 7 digits (E/U = ESP Korea, L = China, I = Vietnam) or two letters + 7-8 digits (IS/IR = Indonesia, IW/IX = Indonesia World, plus some 8-digit Indonesia variants). Year encoding within the digits varies.
Gotchas & format-specific sources
- Year decoding is not consistently documented across factories — we match the format and leave decoded year null.