The CJK Radicals Supplement block spans U+2E80–U+2EFF, 128 codepoints in Plane 0 (Basic Multilingual Plane). 115 are assigned in Unicode 16.0; the other 13 are reserved for future characters.
All of its characters belong to the Han script.
By general category: 115 other symbols (So).
The first 115 arrived in Unicode 3.0 (1999).
115 characters are East Asian Wide or Fullwidth and take two columns in terminals.