The Sundanese Supplement block spans U+1CC0–U+1CCF, 16 codepoints in Plane 0 (Basic Multilingual Plane). 8 are assigned in Unicode 16.0; the other 8 are reserved for future characters.
All of its characters belong to the Sundanese script.
By general category: 8 other punctuation (Po).
The first 8 arrived in Unicode 6.1 (2012).