Chinese Character Code for Information Interchange

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The Chinese Character Code for Information Interchange (Chinese: 中文資訊交換碼) or CCCII is a character set developed specifically to address the problem of interchange of Chinese information. It is used mostly by libraries because the code contains various properties considered to be desirable by libraries. Its 94 ISO 2022 planes are grouped into 16 layers of 6 planes each. Layer 2 contains Simplified Chinese characters, with their row and cell numbers being the same as the Traditional Chinese equivalent in layer 1. Layers 3 through 12 contain further variant forms, at row and cell numbers homologous to the first two layers. Layer 13 contains kana and Japanese kokuji, and layer 14 contains hangul.[1]

CCCII is a superset of ASCII designed to conform to ISO 2022. Each Chinese character is represented by a 3-byte code in which each byte is 7-bit. Thus, the maximum number of Chinese characters representable in CCCII is 94×94×94 = 830584. In practice the number of characters encodable by CCCII would be less than this number, because variant characters are encoded in related ISO 2022 planes under CCCII, so most of the code points would have to be reserved for variants.

The code is adopted as the character set for Library of Congress with the name East Asia Coded Character (EACC, ANSI/NISO Z39.64). However, some CCCII characters don't have EACC equivalent.[2]

Code charts[edit]

CCCII character Set[edit]

EACC character set[edit]

Character set[edit]

EACC[3]
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F}
2_ 21
LEAD

 

 

 

 

 

 

 

 

 

 

 

 

 

 
3_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
4_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
5_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
6_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
7_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F

Character set 0x21[edit]

EACC (prefixed with 0x21)[3]
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F}
2_
 

 

 

 

 

 

 

 

 

 

 

 

 

 
2F
LEAD
3_ 30
LEAD
31
LEAD
32
LEAD

 

 

 

 

 

 

 

 

 

 

 

 

 
4_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
5_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
6_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
7_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F

Character set 0x212F[edit]

EACC (prefixed with 0x212F)[3]
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F}
2_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
3_
3007

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
4_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
5_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
6_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
7_
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F

Character set 0x2130[edit]

EACC (prefixed with 0x2130)[3]
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F}
2_
4E00

4E01

4E03

4E09

4E0B

4E0A

4E08

 

4E10

4E0D

4E14

4E19

4E16

4E15

4E18
3_
4E22

4E1E

4E26

 

4E2D

4E32

51E1

4E38

4E39

4E3B

4E43

4E45

 

4E4B

5C39

4E4F
4_
4E4E

4E4D

4E52

4E53

4E56

4E58

4E59

4E5D

4E5F

4E5E

 

4E73

4E7E

4E82

 

 
5_
4E8B

4E8C

4E8E

4E95

4E94

4E92

 

4E99

4E9E

4E9B

4E9F

4EA1

4EA6

4EA5

4EA4

4EA8
6_
4EAB

4EAC

4EAD

4EAE

4EBA

4ECA

4EC1

 

4EC3

4EC4

 

4ECD

4EC7

4ECB

4EE4

4ED8
7_
4ED5

4ED6

4EDE

4EE3

4ED4

4ED7

4ED9

4EE5
仿
4EFF

4F09

 

 

4EFB

4F0A

4F15
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F

Character set 0x2131[edit]

EACC (prefixed with 0x2131)[3]
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F}
2_
4F11

4F10

4F0F

4EF2

4F01

4EF3

4EF6

4EF0

 

4F4F

4F4D

4F34

4F47

4F57

4F3A
3_
4F5E

 

4F5E

4F55

4F30

4F50

4F51

4F3D

4F48

4F46

4F38

4F43

4F54

4F3C

4F63

4F5C
4_
4F60

4F2F

4F4E

4F5D

4F36

4F9D

4F6F

4F75

4F8D

4F73
使
4F7F

4F9B

4F86

4F6C

4F8B

4F96
5_
 

4F83

4F7B

4F88

4F69

4F8F

4F7E

4FE1

4FD1

4FB5

4FAF
便
4FBF

4FDE

4FE0

4FCF

4FB6
6_
4FDA

4FDD

4FC3

4FD8

4FDF

4FCA

4FAE

4FD0

4FC4

4FC2

4FCE

4FD7

5009

 

500D

4FEF
7_
5026

500C

5025

5011

4FF8

5028

5014

5016

5029

5006

 

5012

503C

501A

4FFA
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F

Character set 0x2132[edit]

EACC (prefixed with 0x2132)[3]
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F}
2_
5018

4FF1

5021

500B

5019
倀
5000

4FEE

4FF3

502D

5003

4FFE

502A

502B

505C

504F
3_
5065

5047

505A

5049

5043

5074

5076

504E

5075

504C

5055

500F

5077

508D

50A2

5085
4_
5099

5091

5080

5096

5098

50AD

50B3

50B5

50B2

50C5

50BE

50AC

50B7

50AF

50E7

50EE
5_
50F1

50E5

50D6

50ED

50DA

50D5

507D

50CF

50D1

5100

5104

50FB

50F5

50F9

5102

510D
6_
5108

5109

5110

5118

5112

5114

512A

511F

5121

5132

5137

513C

5140

5143

5141

5145
7_
5144

5146

5149

5147

5148

514C

 

514D

5155

5154

5152

5157

515C

5162

5165
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F

References[edit]

  1. ^ Lunde, Ken (1995-12-18). "2.5.2: CCCII". CJK.INF Version 1.9.
  2. ^ "Archived copy". Archived from the original on 2016-06-15. Retrieved 2016-06-15.CS1 maint: archived copy as title (link)
  3. ^ a b c d e f "Character Set: East Asian Ideographs ('Han')". Library of Congress. Retrieved 16 February 2019.

External links[edit]

  • CNS 11643 official web site (English version of pages available) has information about the CCCII character set in the "Chinese Information Code" section