U+1CCF0 "" Outlined Digit Zero Unicode Character
Unicode Version 17.0
U+1CCF0 "" Outlined Digit Zero is a numeral glyph from the Sutogram script range, added to Unicode version 16.0 in 2024. It represents the digit zero with a distinctive outlined or hollow design, intended to clearly differentiate it from the letter "O" in contexts like technical notation, timekeeping, or data encoding where legibility is critical. This character belongs to the Supplementary Multilingual Plane and serves as a specialized typographic tool for writing systems that require unambiguous numeral representation.
General Properties
| Code Point | U+1CCF0 |
| Version Added | 16.0 |
| Name | Outlined Digit Zero |
| Block | Symbols for Legacy Computing Supplement |
| General Category | Decimal Number |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | European Number |
| Decomposition Type | Font |
| Decomposition Mapping | "0" U+0030 Digit Zero |
Encodings
| HTML Decimal Encoding | 𜳰 |
| HTML Hex Encoding | 𜳰 |
| UTF-8 Encoding | 0xF0 0x9C 0xB3 0xB0 |
| UTF-16 Encoding | 0xD833 0xDCF0 |
| UTF-32 Encoding | 0x0001CCF0 |
| C/C++/Java Escape | \ud833\udcf0 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | Decimal |
| Numeric Value | 0 |
| Line Break | Numeric |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "0" U+0030 Digit Zero |
| NFKC Simple Casefold | "0" U+0030 Digit Zero |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| ID Continue | Yes |
| XID Continue | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Numeric |
| Sentence Break | Numeric |