The Osmanya block spans U+10480–U+104AF, 48 codepoints in Plane 1 (Supplementary Multilingual Plane). 40 are assigned in Unicode 16.0; the other 8 are reserved for future characters.
All of its characters belong to the Osmanya script.
By general category: 30 other letters (Lo), 10 decimal digits (Nd).
The first 40 arrived in Unicode 4.0 (2003).
Because it lies outside the BMP, every character here takes four bytes in UTF-8 and a surrogate pair in UTF-16.