Synchronous Idle
SYN
Non-printing control character
Unicode
U+0016
Decimal
22
HTML (numeric)
 · 
Alt code (Windows)
Alt + 22 · Alt + 022
Category
ASCII control
Related characters
FAQ — Synchronous Idle
What is the Unicode code of ␖ (Synchronous Idle)?
The Synchronous Idle character has the Unicode codepoint U+0016 (decimal 22). Its HTML form is  (decimal) /  (hex).
How do I type ␖ with an alt code?
This is a control character and is not usually typed directly. Its code is Alt + 22 · Alt + 022.
Which category does ␖ belong to?
Synchronous Idle is in the "ASCII control" category.