The Cuneiform block spans U+12000U+123FF, 1,024 codepoints in Plane 1 (Supplementary Multilingual Plane). 922 are assigned in Unicode 16.0; the other 102 are reserved for future characters.

All of its characters belong to the Cuneiform script.

By general category: 922 other letters (Lo).

The first 879 arrived in Unicode 5.0 (2006); later additions came in 7.0 (42), 8.0 (1).

Because it lies outside the BMP, every character here takes four bytes in UTF-8 and a surrogate pair in UTF-16.