| Name | |
| Unicode Version | 1.1 |
| Block（ブロック） | CJK Unified Ideographs（CJK統合漢字） |
| Plane（面） | Basic Multilingual Plane（基本多言語面） |
| Script | |
| Category | |
| Bidirectional Class | |
| Combining Class | |
| Character is Mirrored | |
| HTML Entity | 徐 徐 |
| UTF-8 Encoding | 徐 e5be90 |
| UTF-16 Encoding | 徐 5f90 |
| UTF-32 Encoding | 徐 00005f90 |