The Latin Extended-D block spans U+A720–U+A7FF, 224 codepoints in Plane 0 (Basic Multilingual Plane). 199 are assigned in Unicode 16.0; the other 25 are reserved for future characters.
By script: Latin (194), Common (5).
By general category: 91 lowercase letters (Ll), 90 uppercase letters (Lu), 7 modifier letters (Lm), 7 other letters (Lo), 4 modifier symbols (Sk).
The first 2 arrived in Unicode 5.0 (2006); later additions came in 5.1 (112), 6.0 (15), 6.1 (5), 7.0 (18), 8.0 (7), and 6 later versions.