The Pau Cin Hau block spans U+11AC0–U+11AFF, 64 codepoints in Plane 1 (Supplementary Multilingual Plane). 57 are assigned in Unicode 16.0; the other 7 are reserved for future characters.
All of its characters belong to the Pau Cin Hau script.
By general category: 57 other letters (Lo).
The first 57 arrived in Unicode 7.0 (2014).
Because it lies outside the BMP, every character here takes four bytes in UTF-8 and a surrogate pair in UTF-16.