The Meetei Mayek Extensions block spans U+AAE0–U+AAFF, 32 codepoints in Plane 0 (Basic Multilingual Plane). 23 are assigned in Unicode 16.0; the other 9 are reserved for future characters.
All of its characters belong to the Meetei Mayek script.
By general category: 12 other letters (Lo), 4 spacing marks (Mc), 3 non-spacing marks (Mn), 2 other punctuation (Po), 2 modifier letters (Lm).
The first 23 arrived in Unicode 6.1 (2012).
Most characters here are combining marks. See combining diacritical marks.