Unused
ExtendedASCII 129 | Hex 0x81 | U+0081
ASCII Code
Decimal
129
Hexadecimal
0x81
Octal
201
Binary
1000 0001
How to Type
Windows Alt CodeAlt + 129
HTML Entity

Unicode InputU+0081
Character in Different Encodings
| Encoding | Code | Symbol | Name |
|---|---|---|---|
| Code page 437 | 129 | ü | Latin small letter u with diaeresis |
| ISO-8859-1 | 129 | - | Unused |
| ISO-8859-2 | 129 | - | Unused |
| ISO-8859-3 | 129 | - | Unused |
| ISO-8859-4 | 129 | - | Unused |
| ISO-8859-5 | 129 | - | Unused |
| ISO-8859-6 | 129 | - | Unused |
| ISO-8859-7 | 129 | - | Unused |
| ISO-8859-8 | 129 | - | Unused |
| ISO-8859-9 | 129 | - | Unused |
| ISO-8859-10 | 129 | - | Unused |
| ISO-8859-11 | 129 | - | Unused |
| Windows-1250 | 129 | - | Unused |
| Windows-1251 | 129 | Ѓ | Cyrillic capital letter Gje |
| Windows-1252 | 129 | - | Unused |
| Windows-1253 | 129 | - | Unused |
| Windows-1254 | 129 | - | Unused |
| Windows-1255 | 129 | - | Unused |
| Windows-1256 | 129 | پ | Arabic Taa with three dots below |
| Windows-1257 | 129 | - | Unused |
| Windows-1258 | 129 | - | Unused |
Frequently Asked Questions
What is ASCII code 129?
ASCII code 129 represents the Unused character. In hexadecimal it is 0x81, in binary 1000 0001, and in octal 201. This is an extended ASCII character whose meaning varies by encoding.
How do I type ASCII 129 on a keyboard?
On Windows, hold Alt and type 129 on the numeric keypad. On Mac, you can use the Character Viewer (Edit > Emoji & Symbols). In HTML, use the entity  or .