U+0017 "ETB" END OF TRANSMISSION BLOCK Unicode Character

U+0017 "ETB" END OF TRANSMISSION BLOCK is a control character originally defined in communication protocols as a means to mark the end of a logical block of data during transmission, allowing the receiving system to recognize that a specific segment is complete without ending the entire transmission. It is part of the C0 control code set inherited from ASCII, where it is used for block-oriented data transfers, often in conjunction with other control characters like STX (Start of Text) and ETX (End of Text) to structure data into manageable blocks. In modern computing, it may still appear in legacy systems, file transfer protocols, or specialized data processing contexts, though it is rarely encountered in typical user-facing text.

General Properties

Code Point	U+0017
Version Added	1.1
Unicode 1.0 Name	End of Transmission Block
Block	Basic Latin
General Category	Control
Canonical Combining Class	Not Reordered
Bidirectional Class	Boundary Neutral
Alias	END OF TRANSMISSION BLOCK (control) ETB (abbreviation)

Encodings

HTML Decimal Encoding	
HTML Hex Encoding	
UTF-8 Encoding	0x17
UTF-16 Encoding	0x0017
UTF-32 Encoding	0x00000017
C/C++/Java Escape	\u0017

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