This character is a Math Symbol and is commonly used, that is, in no specific script.
The glyph is a narrow version of the glyph Glyph for U+2191Upwards Arrow. Accordingly, its width in East Asian Text is halfwidth. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+FFEA forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
The symbol ↑, an upward pointing arrow, also called up arrow, uparrow, or upwards arrow, may refer to:
Representations
System
Representation (click value to copy)
Nº
65514
UTF-8
EF BF AA
UTF-16
FF EA
UTF-32
00 00 FF EA
URL-Quoted
%EF%BF%AA
HTML hex reference
↑
Wrong windows-1252 Mojibake
↑
Encoding: GB18030 (hex bytes)
84 31 A2 38
RFC 5137
\u'FFEA'
Bash and Zsh inside echo -e
\uFFEA
C and C++
\uFFEA
C#
\uFFEA
CSS
\00FFEA
Excel
=UNICHAR(65514)
Go
\uFFEA
JavaScript
\uFFEA
Modern JavaScript since ES6
\u{ffea}
JSON
\uFFEA
Java
\uFFEA
Lua
\u{FFEA}
Matlab
char(65514)
Perl
"\x{FFEA}"
PHP
\u{ffea}
PostgreSQL
U&'\FFEA'
PowerShell
`u{FFEA}
Python
\uFFEA
Ruby
\u{ffea}
Rust
\u{ffea}
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