Indiana · sequential passenger map
Indiana license-plate format
Indiana’s recent passenger serial is three digits followed by three letters. 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
- 999AAA
- Classes
- 3 letters + 3 digits
- Alphabet size
- 26
- Skipped letters
- none modelled
- Combination count
- 17,576,000
- Model year
- 2017
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 17,576,000 — the size of the sequential space taught here. Hyphens, spaces and dots in 999AAA are display only.
Indiana spent years on county-coded plates. The 2017 redesign moved to a statewide 999AAA block, reversing the older letter-heavy look.
Before this map, Indiana used 123A ABC county format. Optional graphics (universities, military, environmental) can look nothing like the sequential passenger die and are not counted in the 17,576,000 figure.
SPR9932 (letters first) does not match Indiana. 932SPR would be in-class.
Generated versus issued
A string that fits 999AAA 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.