The Sogdian block spans U+10F30–U+10F6F, 64 codepoints in Plane 1 (Supplementary Multilingual Plane). 42 are assigned in Unicode 16.0; the other 22 are reserved for future characters.
All of its characters belong to the Sogdian script.
By general category: 22 other letters (Lo), 11 non-spacing marks (Mn), 5 other punctuation (Po), 4 other numbers (No).
The first 42 arrived in Unicode 11.0 (2018).
Most letters here are written right to left. See bidirectional text.
Because it lies outside the BMP, every character here takes four bytes in UTF-8 and a surrogate pair in UTF-16.