The Unified Canadian Aboriginal Syllabics block spans U+1400–U+167F, 640 codepoints in Plane 0 (Basic Multilingual Plane). Every one of them is assigned in Unicode 16.0.
All of its characters belong to the Canadian Aboriginal script.
By general category: 637 other letters (Lo), 1 dashes (Pd), 1 other symbols (So), 1 other punctuation (Po).
The first 630 arrived in Unicode 3.0 (1999); later additions came in 5.2 (10).