The Oriya block spans U+0B00–U+0B7F, 128 codepoints in Plane 0 (Basic Multilingual Plane). 91 are assigned in Unicode 16.0; the other 37 are reserved for future characters.
All of its characters belong to the Oriya script.
By general category: 53 other letters (Lo), 12 non-spacing marks (Mn), 10 decimal digits (Nd), 9 spacing marks (Mc), 6 other numbers (No), plus smaller groups.
The first 79 arrived in Unicode 1.1 (1993); later additions came in 4.0 (2), 5.1 (3), 6.0 (6), 13.0 (1).