U+0007 "BEL" ALERT Unicode Character
Unicode Version 17.0
BEL
U+0007 "BEL" ALERT is a control character originally used in telecommunication systems to trigger an audible or visual alert, such as a bell ringing or a screen flash, to draw the operator's attention. It was commonly employed in early computer terminals and text-based interfaces to signal important events or errors. In modern computing environments, its use has largely been replaced by more sophisticated notification systems, though it remains technically supported for backward compatibility in some terminals and specific text processing contexts.
General Properties
| Code Point | U+0007 |
| Version Added | 1.1 |
| Unicode 1.0 Name | Bell |
| Block | Basic Latin |
| General Category | Control |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Boundary Neutral |
| Alias | ALERT (control) BEL (abbreviation) |
Encodings
| HTML Decimal Encoding |  |
| HTML Hex Encoding |  |
| UTF-8 Encoding | 0x07 |
| UTF-16 Encoding | 0x0007 |
| UTF-32 Encoding | 0x00000007 |
| C/C++/Java Escape | \u0007 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| NFKC Quick Check | Yes |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Combining Mark |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| Vertical Orientation | Rotated |
| Grapheme Cluster Break | Control |
| Word Break | Other |
| Sentence Break | Other |