The CJK Unified Ideographs Extension E block spans U+2B820–U+2CEAF, 5,776 codepoints in Plane 2 (Supplementary Ideographic Plane). 5,762 are assigned in Unicode 16.0; the other 14 are reserved for future characters.
All of its characters belong to the Han script.
By general category: 5,762 other letters (Lo).
The first 5,762 arrived in Unicode 8.0 (2015).
5,762 characters are East Asian Wide or Fullwidth and take two columns in terminals.
Because it lies outside the BMP, every character here takes four bytes in UTF-8 and a surrogate pair in UTF-16.