U+FACC "頻" CJK Compatibility Ideograph-# Unicode Character

U+FACC "頻" CJK Compatibility Ideograph-# is a compatibility ideograph included in the Unicode standard primarily to preserve the roundtrip integrity of text converted from older East Asian character encoding standards, such as certain Japanese or Chinese industry-specific sets. It does not have a defined, standalone meaning in modern Chinese, Japanese, or Korean usage, nor does it correspond to a standard CJK unified ideograph. Instead, it acts as a placeholder or mapping reference for a unique character that existed in a legacy encoding, ensuring that text can be converted back to its original form without loss. As a result, it is rarely used in contemporary digital communication and is more of a technical artifact than a practical writing tool.

General Properties

Code Point	U+FACC
Version Added	4.1
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	"頻" U+983B CJK Unified Ideograph-#

Encodings

HTML Decimal Encoding	頻
HTML Hex Encoding	頻
UTF-8 Encoding	0xEF 0xAB 0x8C
UTF-16 Encoding	0xFACC
UTF-32 Encoding	0x0000FACC
C/C++/Java Escape	\ufacc

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	"頻" U+983B CJK Unified Ideograph-#
NFKC Simple Casefold	"頻" U+983B 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+983B
kIRG_KPSource	KP1-8705
kRSUnicode	181.7
kTotalStrokes	17