The Tangsa block spans U+16A70–U+16ACF, 96 codepoints in Plane 1 (Supplementary Multilingual Plane). 89 are assigned in Unicode 16.0; the other 7 are reserved for future characters.
All of its characters belong to the Tangsa script.
By general category: 79 other letters (Lo), 10 decimal digits (Nd).
The first 89 arrived in Unicode 14.0 (2021).
Because it lies outside the BMP, every character here takes four bytes in UTF-8 and a surrogate pair in UTF-16.