CJK Unified Ideographs

 

For unified CJK characters, see Han Unification.

CJK Unified Ideographs is a range of Unicode code points assigned for ideographs used by Chinese characters. Since its introduction in Unicode 1.00, the use of CJK ideographs has been extended to multiple blocks.

Unicode ranges

Character Types
Letters and other      script specific • Unihan ideographs, etc. • Phonetic characters Numerals Punctuation and separators Diacritics and other marks Symbols: Compatibility characters Control characters Other Topics • Combining character • Precomposed character

These ideographic characters appear in the following blocks:

• CJK Unified Ideographs (4E00–9FFF) (chart)
• CJK Unified Ideographs Extension A (3400–4DBF) (chart)
• CJK Unified Ideographs Extension B (20000–2A6DF)

Unicode includes support of CJKV radicals, strokes, punctuation, marks and symbols in the following blocks:

• CJK Radicals Supplement (2E80–2EFF)
• CJK Symbols and Punctuation (3000–303F) (chart)
• CJK Strokes (31C0–31EF)
• Ideographic Description Characters (2FF0–2FFF)

Additional compatibility (discouraged use) characters appear in these blocks:

• Kangxi Radicals (2F00–2FDF)
• Enclosed CJK Letters and Months (3200–32FF) (chart)
• CJK Compatibility (3300–33FF) (chart)
• CJK Compatibility Ideographs (F900–FAFF) (chart)
• CJK Compatibility Ideographs (2F800–2FA1F)
• CJK Compatibility Forms (FE30–FE4F) (chart)

These compatibility characters are included for compatibility with legacy text handling system and other legacy character sets. They include forms of characters for vertical text layout and rich text characters that Unicode recommends handling through other means.

Version history

Unicode version	Addition	Plane	Characters	Total Characters
1.0	CJK Unified Ideographs	Basic Multilingual Plane（BMP）	20,902	20,914
	CJK Compatibility Ideographs	BMP	12
3.0	CJK Unified Ideographs Extension A	BMP	6,582	27,496
3.1	CJK Unified Ideographs Extension B	Supplementary Ideographic Plane（SIP）	42,711	70,207
4.1	CJK Unified Ideographs: Ideographs from HKSCS-2004 and GB 18030-2000 not in ISO 10646	BMP	22	70,229
5.1 (expected)	CJK Unified Ideographs Extension C	SIP	4,251	74,480

Sources

CJK Unified Ideographs

The code points in this region are assigned under Source Separation Rule. These characters came from following:

PRC

Code	Standard	Character count	note
G0	GB 2312-80	6763
G1	GB 12345-90	2352
G3	GB 7589-87 traditional Chinese	7237
G5	GB 7590-87 traditional Chinese	7039
G7	Modern Chinese general character chart	642
G8	GB 8565-89	290

Taiwan

Code	Standard	Character count	note
T1	CNS 11643-1986 plane 1	5401+9
T2	CNS 11643-1986 plane 2	7650
TE	CNS 11643-1986 plane 14	6319+239+10	239 from CCIII, 10 from XCCS

Japan

Code	Standard	Character count	note
J0	JIS X 0208-90	6335+1
J1	JIS X 0212-90	5801

South Korea

Code	Standard	Character count	note
K0	KS C 5601-87	4888	includes 268 duplicates
K1	KS C 5657-91	2856

Others

• ANSI Z39.64-1989
• Big5
• CCCII plane 1
• GB 12052-89
• JEF
• Chinese telegraph code
• Taiwan telegraph code
• Xerox Chinese

In Unicode 4.1, 14 HKSCS-2004 characters and 8 GB 18030 characters are assigned to between U+9FA6 and U+9FBB code points.

CJK Unified Ideographs Extension A

PRC

Code	Standard
GE	GB 16500-95
GS	Singapore CJK ideographs

Taiwan

Code	Standard	note
T3	CNS 11643-1992 plane 3
T4	CNS 11643-1992 plane 4
T5	CNS 11643-1992 plane 5
T6	CNS 11643-1992 plane 6
T7	CNS 11643-1992 plane 7
TF	CNS 11643-1992 plane 15

Japan

Code	Standard	note
JA	Unified Japanese IT Vendors Contemporary Ideographs, 1993

South Korea

Code	Standard	note
K2
K3

Vietnam

Code	Standard	note
V0
V1

CJK Unified Ideographs Extension B

• Kangxi dictionary
• Hanyu character dictionary
• Ciyuan
• Cihai
• Hanyu word dictionary
• Encyclopedia of China
• Beijing University Founder DTP
• Siku Quanshu
• HKSCS
• JIS X 0213 planes 3 and 4
• KPS 9566-97, KPS 10721-2000
• CNS 11643 planes 4-7, 15
• TCVN, ,

CJK Unified Ideographs Extension C

Under current proposal, 4251 characters will be assigned to the successor of Unicode 5.0, allocated to U+2A6E0 to U+2B77A code points. The characters came from following:

PRC

• Encyclopedia of China
• Beijing University Founder DTP
• Hanyu character dictionary
• Hanyu word dictionary
• Old hanyu word dictionary
• Commericial Press Ideographs
• Xiandaihanyu Cidian
• Cihai
• Kangxi dictionary
• Chinese Academy of Surveying & Mapping
• Modern Chinese Dialect Encyclopedia
• Yanzhou jinwen jicheng yinde (殷周金文集成引得)

Macau Japan

• Japanese KOKUJI Collection

South Korea

• Korean IRG Hanja Character Set 5th Edition: 2001

North Korea

• KPS 10721:2003

Vietnam

• Từ điển chữ Nôm (喃字典), Nguyễn Quang Hồng, 2006
• Từ điển chữ Nôm Tày, Hoàng Triều Ân, 2003
• Bảng tra chữ Nôm miền Nam, Vũ Văn Kính, 1994

UTC

• ABC Chinese-English Dictionary, John DeFrancis（德范克）, et al., eds., 2nd edition. (1998) Honolulu: University of Hawaii Press
• The Church of Jesus Christ of Latter-Day Saints Hong Kong division
• Mathews' Chinese-English Dictionary, Robert H. Mathews (1975) Cambridge; Harvard University Press
• Guangyun
• Chinese bird system index (中国鸟类系统检索), Zheng Zhuoxin (郑作新), et al. (2000), Beijing, 科学出版社 (www.sciencep.com)
• Annotated Shuowen Jiezi, Duan Yucai

CJK Unified Ideographs Extension D

According to the CJK editorial group report ISO/IEC JTC1/SC2/WG2/IRG N1266, there are at least characters from following:

Taiwan

• TD-454E
• TC-5036
• TD-624C
• TD-5352
• TC-4139
• TC-4A76
• TD-5C26

Korea

• K5H00535
• K5H00222
• K5H00297
• KP1-73E1
• KP1-712E
• KP1-70BE
• KP1-6752
• KP1-672B
• KP1-6651
• KP1-4B50
• KP1-487E
• KP1-4731

Vietnam

• V04-5073

Unicode

• UTC00103

Others

• CJK Unified Ideographs Extension C Remainder list
• Macao SAR (IRGN1249 with minor adjustment)
• Unicode (IRGN1256 and IRGN1257, 472 char)
• China (IRGN1264, 57)

CJK Compatibility Ideographs

See Also

• Han Unification

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