This character is a Other Symbol and is mainly used in the Braille script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. The word that U+2806 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
The Braille pattern dots-23 ( ⠆ ) is a 6-dot braille cell with the middle and bottom left dots raised, or an 8-dot braille cell with the two middle-left dots raised. It is represented by the Unicode code point U+2806, and in Braille ASCII with the number "2".
Representations
System
Representation (click value to copy)
Nº
10246
UTF-8
E2 A0 86
UTF-16
28 06
UTF-32
00 00 28 06
URL-Quoted
%E2%A0%86
HTML hex reference
⠆
Wrong windows-1252 Mojibake
â †
Encoding: GB18030 (hex bytes)
81 37 D6 30
RFC 5137
\u'2806'
Bash and Zsh inside echo -e
\u2806
C and C++
\u2806
C#
\u2806
CSS
\002806
Excel
=UNICHAR(10246)
Go
\u2806
JavaScript
\u2806
Modern JavaScript since ES6
\u{2806}
JSON
\u2806
Java
\u2806
Lua
\u{2806}
Matlab
char(10246)
Perl
"\x{2806}"
PHP
\u{2806}
PostgreSQL
U&'\2806'
PowerShell
`u{2806}
Python
\u2806
Ruby
\u{2806}
Rust
\u{2806}
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