Block: Enclosed Alphanumerics

Range U+2460 - U+24FF
Official Chart http://www.unicode.org/charts/PDF/U2460.pdf
Wikipedia Enclosed alphanumerics is a Unicode block of typographical symbols of an alphanumeric within a circle, a bracket or other not-closed enclosure, or ending in a full stop. There is another block for these characters (U+1F100—U+1F1FF), encoded in the Supplementary Multilingual Plane, which contains the set of Regional Indicator Symbols as of Unicode 6.0. == Purpose == Many of these characters were originally intended for use as bullets for lists.
https://en.wikipedia.org/wiki/Enclosed_Alphanumerics
Characters