Code point
U+3266
Glyph appearance depends on your fonts.
U+3266
So<circle> 1109U+3266 CIRCLED HANGUL SIOS is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Enclosed CJK Letters and Months block.
Choose the representation you need, then copy its value.
U+3266
12902
㉦
㉦
E3 89 A6
3266
00003266
%E3%89%A6
\u3266
\u3266
\u3266
\3266