The Sinhala Archaic Numbers block spans U+111E0–U+111FF, 32 codepoints in Plane 1 (Supplementary Multilingual Plane). 20 are assigned in Unicode 16.0; the other 12 are reserved for future characters.

All of its characters belong to the Sinhala script.

By general category: 20 other numbers (No).

The first 20 arrived in Unicode 7.0 (2014).

Because it lies outside the BMP, every character here takes four bytes in UTF-8 and a surrogate pair in UTF-16.