The Egyptian Hieroglyphs block spans U+13000–U+1342F, 1,072 codepoints in Plane 1 (Supplementary Multilingual Plane). Every one of them is assigned in Unicode 16.0.
All of its characters belong to the Egyptian Hieroglyphs script.
By general category: 1,072 other letters (Lo).
The first 1,071 arrived in Unicode 5.2 (2009); later additions came in 15.0 (1).
Because it lies outside the BMP, every character here takes four bytes in UTF-8 and a surrogate pair in UTF-16.