The Enclosed Alphanumerics block spans U+2460–U+24FF, 160 codepoints in Plane 0 (Basic Multilingual Plane). Every one of them is assigned in Unicode 16.0.

All of its characters have the script value Common: they are shared across writing systems rather than tied to one.

By general category: 82 other numbers (No), 78 other symbols (So).

The first 139 arrived in Unicode 1.1 (1993); later additions came in 3.2 (20), 4.0 (1).

1 of its characters are emoji, all with text presentation by default (add U+FE0F for the emoji style). See emoji.

139 characters here have compatibility decompositions: they are formatting variants of other characters and are replaced by them under NFKC and NFKD. See normalization.