| Name | COMMERCIAL AT |
| Unicode Version | 1.1 |
| Block（ブロック） | Basic Latin（基本ラテン文字（ASCII互換）） |
| Plane（面） | Basic Multilingual Plane（基本多言語面） |
| Script | |
| Category | |
| Bidirectional Class | |
| Combining Class | |
| Character is Mirrored | |
| HTML Entity | @ @ |
| UTF-8 Encoding | @ 40 |
| UTF-16 Encoding | @ 0040 |
| UTF-32 Encoding | @ 00000040 |