The CJK Unified Ideographs Extension G block spans U+30000–U+3134F, 4,944 codepoints in Plane 3 (Tertiary Ideographic Plane). 4,939 are assigned in Unicode 16.0; the other 5 are reserved for future characters.

All of its characters belong to the Han script.

By general category: 4,939 other letters (Lo).

The first 4,939 arrived in Unicode 13.0 (2020).

4,939 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.