This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+1FB09 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Symbols for Legacy Computing is a Unicode block containing graphic characters that were used for various home computers from the 1970s and 1980s and in Teletext broadcasting standards. It includes characters from the Amstrad CPC, MSX, Mattel Aquarius, RISC OS, MouseText, Atari ST, TRS-80 Color Computer, Oric, Texas Instruments TI-99/4A, TRS-80, Minitel, Teletext, ATASCII, PETSCII, ZX80, and ZX81 character sets. Semigraphics characters are also included in the form of new block-shaped characters, line-drawing characters, and 60 "sextant" characters (semigraphic character made up of six smaller blocks).
A supplemental block (Symbols for Legacy Computing Supplement) was added with Unicode 16.0.
Representations
System
Representation (click value to copy)
NΒΊ
129801
UTF-8
F0 9F AC 89
UTF-16
D8 3E DF 09
UTF-32
00 01 FB 09
URL-Quoted
%F0%9F%AC%89
HTML hex reference
🬉
Wrong windows-1252 Mojibake
Γ°ΕΈΒ¬β°
Encoding: GB18030 (hex bytes)
95 31 81 35
RFC 5137
\u'1FB09'
Bash and Zsh inside echo -e
\U0001FB09
C and C++
\U0001FB09
C#
\U0001FB09
CSS
\01FB09
Excel
=UNICHAR(129801)
Go
\U0001FB09
JavaScript
\uD83E\uDF09
Modern JavaScript since ES6
\u{1fb09}
JSON
\uD83E\uDF09
Java
\uD83E\uDF09
Lua
\u{1FB09}
Matlab
char(129801)
Perl
"\x{1FB09}"
PHP
\u{1fb09}
PostgreSQL
U&'\+01FB09'
PowerShell
`u{1FB09}
Python
\U0001FB09
Ruby
\u{1fb09}
Rust
\u{1fb09}
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