| Name | CIRCLED KATAKANA I |
| Unicode Version | 1.1 |
| Block（ブロック） | Enclosed CJK Letters and Months（囲みCJK文字・月） |
| Plane（面） | Basic Multilingual Plane（基本多言語面） |
| Script | |
| Category | |
| Bidirectional Class | |
| Combining Class | |
| Character is Mirrored | |
| HTML Entity | ㋑ ㋑ |
| UTF-8 Encoding | ㋑ e38b91 |
| UTF-16 Encoding | ㋑ 32d1 |
| UTF-32 Encoding | ㋑ 000032d1 |