The Brahmi block spans U+11000–U+1107F, 128 codepoints in Plane 1 (Supplementary Multilingual Plane). 115 are assigned in Unicode 16.0; the other 13 are reserved for future characters.
All of its characters belong to the Brahmi script.
By general category: 56 other letters (Lo), 20 non-spacing marks (Mn), 20 other numbers (No), 10 decimal digits (Nd), 7 other punctuation (Po), plus smaller groups.
The first 108 arrived in Unicode 6.0 (2010); later additions came in 7.0 (1), 14.0 (6).
Because it lies outside the BMP, every character here takes four bytes in UTF-8 and a surrogate pair in UTF-16.