The Myanmar block spans U+1000–U+109F, 160 codepoints in Plane 0 (Basic Multilingual Plane). Every one of them is assigned in Unicode 16.0.
All of its characters belong to the Myanmar script.
By general category: 74 other letters (Lo), 30 spacing marks (Mc), 28 non-spacing marks (Mn), 20 decimal digits (Nd), 6 other punctuation (Po), plus smaller groups.
The first 78 arrived in Unicode 3.0 (1999); later additions came in 5.1 (78), 5.2 (4).
Most characters here are combining marks. See combining diacritical marks.