| Name | LATIN SMALL LETTER A WITH DOT BELOW |
| Unicode Version | 1.1 |
| Block（ブロック） | Latin Extended Additional（ラテン文字拡張追加） |
| Plane（面） | Basic Multilingual Plane（基本多言語面） |
| Script | |
| Category | |
| Bidirectional Class | |
| Combining Class | |
| Character is Mirrored | |
| HTML Entity | ạ ạ |
| UTF-8 Encoding | ạ e1baa1 |
| UTF-16 Encoding | ạ 1ea1 |
| UTF-32 Encoding | ạ 00001ea1 |