The Enclosed Alphanumeric Supplement block spans U+1F100U+1F1FF, 256 codepoints in Plane 1 (Supplementary Multilingual Plane). 200 are assigned in Unicode 16.0; the other 56 are reserved for future characters.

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

By general category: 187 other symbols (So), 13 other numbers (No).

The first 63 arrived in Unicode 5.2 (2009); later additions came in 6.0 (106), 6.1 (2), 7.0 (2), 9.0 (18), 11.0 (1), and 2 later versions.

41 of its characters are emoji, 37 of them shown as colour emoji by default. See emoji.

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

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