| Name | PRECEDES OR EQUAL TO |
| Unicode Version | 1.1 |
| Block（ブロック） | Mathematical Operators（数学記号） |
| 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 | ≼ e289bc |
| UTF-16 Encoding | ≼ 227c |
| UTF-32 Encoding | ≼ 0000227c |