U+FA3B "層" CJK Compatibility Ideograph-# Unicode Character

U+FA3B "層" CJK Compatibility Ideograph-# is a compatibility ideograph included in the Unicode standard for round-trip conversion with older East Asian character encoding systems, specifically originating from a Chinese telegraph code standard or corporate character set. It represents a variant form of the standard CJK ideograph for "layer" or "floor" (層 or 层), but its specific shape and usage are not part of modern simplified or traditional Chinese, Japanese, or Korean common typography. As a compatibility character, it is preserved to ensure document exchange fidelity with legacy systems, even though it is generally discouraged for new text due to its duplicate nature and narrow practical application.

General Properties

Code Point	U+FA3B
Version Added	3.2
Name	CJK Compatibility Ideograph-#
Block	CJK Compatibility Ideographs
General Category	Other Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Canonical
Decomposition Mapping	"層" U+5C64 CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding	層
HTML Hex Encoding	層
UTF-8 Encoding	0xEF 0xA8 0xBB
UTF-16 Encoding	0xFA3B
UTF-32 Encoding	0x0000FA3B
C/C++/Java Escape	\ufa3b

Unicode Properties

Full Composition Exclusion	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Ideographic
East Asian Width	Wide
Changes When NFKC Casefolded	Yes
NFKC Casefold	"層" U+5C64 CJK Unified Ideograph-#
NFKC Simple Casefold	"層" U+5C64 CJK Unified Ideograph-#
Script	Han
Script Extensions	Han
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Upright
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	OLetter
Ideographic	Yes

Unihan Properties

kCompatibilityVariant	U+5C64
kIRG_JSource	J3-4F61
kJinmeiyoKanji	2010:U+5C64
kJIS0213	1,47,65
kRSAdobe_Japan1_6	C+13361+44.3.12
kRSUnicode	44.12
kTotalStrokes	15
kUnihanCore2020	J