Idaho · sequential passenger map
Idaho license-plate format
Idaho passenger plates pair a county letter with up to six digits. In this atlas the pattern string uses A for a letter slot and 9 for a digit slot. Other characters are separators that appear on the metal but do not enlarge the combination space.
- Pattern
- A 999999
- Classes
- 1 letter + 6 digits
- Alphabet size
- 26
- Skipped letters
- none modelled
- Combination count
- 26,000,000
- Model year
- 1991
How the map works
Each A slot independently takes one glyph from ABCDEFGHIJKLMNOPQRSTUVWXYZ. Each 9 slot takes 0–9. The product of those bases is 26,000,000 — the size of the sequential space taught here. Hyphens, spaces and dots in A 999999 are display only.
Idaho kept a county letter at the left while the numeric block grew. The potato graphic is branding; the serial is still letter plus digits.
Before this map, Idaho used county-sticker numeric plates. Optional graphics (universities, military, environmental) can look nothing like the sequential passenger die and are not counted in the 26,000,000 figure.
SPR 9932 does not match Idaho’s single-letter prefix model.
Generated versus issued
A string that fits A 999999 is in-class. It is not automatically an issued plate. Series can skip blocks, retire numbers, or reserve low digits. This essay never queries a motor-vehicle file. See also generated vs issued.