The Vai block spans U+A500U+A63F, 320 codepoints in Plane 0 (Basic Multilingual Plane). 300 are assigned in Unicode 16.0; the other 20 are reserved for future characters.

All of its characters belong to the Vai script.

By general category: 286 other letters (Lo), 10 decimal digits (Nd), 3 other punctuation (Po), 1 modifier letters (Lm).

The first 300 arrived in Unicode 5.1 (2008).