| Codepage | Character | Description | UTF-8 codepoint | UTF-8 bytes |
|---|---|---|---|---|
| DOS / 437 | 1 | DIGIT ONE | U+0031 | 0x31 |
| DOS / 720 | 1 | DIGIT ONE | U+0031 | 0x31 |
| DOS / 737 | 1 | DIGIT ONE | U+0031 | 0x31 |
| DOS / 850 | 1 | DIGIT ONE | U+0031 | 0x31 |
| DOS / 852 | 1 | DIGIT ONE | U+0031 | 0x31 |
| DOS / 855 | 1 | DIGIT ONE | U+0031 | 0x31 |
| DOS / 858 | 1 | DIGIT ONE | U+0031 | 0x31 |
| DOS / 866 | 1 | DIGIT ONE | U+0031 | 0x31 |
| DOS / 869 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-1 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-10 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-11 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-13 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-14 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-15 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-16 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-2 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-3 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-4 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-5 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-6 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-7 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-8 | 1 | DIGIT ONE | U+0031 | 0x31 |
| ISO/IEC / ISO-8859-9 | 1 | DIGIT ONE | U+0031 | 0x31 |
| Windows / Windows-1250 | 1 | DIGIT ONE | U+0031 | 0x31 |
| Windows / Windows-1251 | 1 | DIGIT ONE | U+0031 | 0x31 |
| Windows / Windows-1252 | 1 | DIGIT ONE | U+0031 | 0x31 |
| Windows / Windows-1253 | 1 | DIGIT ONE | U+0031 | 0x31 |
| Windows / Windows-1254 | 1 | DIGIT ONE | U+0031 | 0x31 |
| Windows / Windows-1255 | 1 | DIGIT ONE | U+0031 | 0x31 |
| Windows / Windows-1256 | 1 | DIGIT ONE | U+0031 | 0x31 |
| Windows / Windows-1257 | 1 | DIGIT ONE | U+0031 | 0x31 |
| Windows / Windows-1258 | 1 | DIGIT ONE | U+0031 | 0x31 |