The Limbu block spans U+1900–U+194F, 80 codepoints in Plane 0 (Basic Multilingual Plane). 68 are assigned in Unicode 16.0; the other 12 are reserved for future characters.
All of its characters belong to the Limbu script.
By general category: 31 other letters (Lo), 15 spacing marks (Mc), 10 decimal digits (Nd), 9 non-spacing marks (Mn), 2 other punctuation (Po), plus smaller groups.
The first 66 arrived in Unicode 4.0 (2003); later additions came in 7.0 (2).
Most characters here are combining marks. See combining diacritical marks.