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For a list of all CJK characters encoded in Unicode, see CJK Unified Ideographs.
Unicode character block
CJK Unified Ideographs Extension B
Range
U+20000..U+2A6DF (42,720 code points)
Plane
SIP
Scripts
Han
Assigned
42,720 code points
Unused
0 reserved code points
Unicode version history
3.1 (2001)
42,711 (+42,711)
13.0 (2020)
42,718 (+7)
14.0 (2021)
42,720 (+2)
Unicode documentation
Code chart ∣ Web page
Note: [1][2]
CJK Unified Ideographs Extension B is a Unicode block containing rare and historic CJK ideographs for Chinese, Japanese, Korean, and Vietnamese submitted to the Ideographic Research Group between 1998 and 2000, plus seven gongche characters for kunqu added in Unicode 13.0, and two characters for the Macao Supplementary Character Set added in Unicode 14.0.[3]
The block has dozens of variation sequences defined for standardized variants.[4]
It also has thousands of ideographic variation sequences registered in the Unicode Ideographic Variation Database (IVD).[5][6] These sequences specify the desired glyph variant for a given Unicode character.
It was the only CJK Unified Ideographs Extension block with a UCS2003 source identifier. Since Extension B contained too many characters, the original code charts were produced with a single glyph for all regions. The glyphs were designed by Beijing Zhongyi Electronic Ltd. After the introduction of multi-column code charts on Unicode 5.2, the original glyphs were retained under the UCS2003 source identifier; they were then removed in Unicode 14.0, being redundant as well as misleading.[7] The glyphs are packaged in the "SimSun-ExtB" font distributed with the Simplified Chinese versions of Windows, and do not adhere to the glyphs for the Mainland China region.
^"Unicode character database". The Unicode Standard. Retrieved 2023-07-26.
^"Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023-07-26.
^"18.1: Han (§ Blocks Containing Han Ideographs)" (PDF). The Unicode Standard: Core Specification. Version 15.0. Unicode Consortium. pp. 741–744. 2022. ISBN 978-1-936213-32-0.
^"Unicode Character Database: Standardized Variation Sequences". The Unicode Consortium.
CJKUnifiedIdeographsExtensionB is a Unicode block containing rare and historic CJKideographs for Chinese, Japanese, Korean, and Vietnamese submitted...
duplicated in CJKUnifiedIdeographsExtensionB as U+27EAF 𧺯 CJKUNIFIEDIDEOGRAPH-27EAF. They are as follows: U+FA0E 﨎 CJK COMPATIBILITY IDEOGRAPH-FA0E U+FA0F...
CJKUnifiedIdeographsExtension D is a Unicode block containing uncommon CJKideographs for Chinese, Japanese, Korean, and Vietnamese, some of which are...
CJKUnifiedIdeographsExtension E is a Unicode block containing rare and historic CJKideographs for Chinese, Japanese, Korean, and Vietnamese submitted...
CJKUnifiedIdeographsExtension C is a Unicode block containing rare and historic CJKideographs for Chinese, Japanese, Korean, and Vietnamese submitted...
of CJKUnifiedIdeographsExtensionB in GB 18030-2005, along with updates up to Unicode 11.0 including Kangxi Radicals and CJKUnifiedIdeographs Extension...
This is a list of notable CJK fonts (computer fonts with a large range of Chinese/Japanese/Korean characters). These fonts are primarily sorted by their...
(3400–4DBF) CJKUnifiedIdeographsExtensionB (20000–2A6DF) CJKUnifiedIdeographsExtension C (2A700–2B73F) CJKUnifiedIdeographsExtension D (2B740–2B81F)...
CJKUnifiedIdeographsExtension F is a Unicode block containing rare and historic CJKideographs for Chinese, Japanese, Korean, and Vietnamese, as well...
specific characters in the CJK Compatibility Ideographs Supplement block: CJKUnifiedIdeographsCJK Compatibility Ideographs "Unicode character database"...
Queensland Railways U+2170x (Unicode character block), see List of CJKUnifiedIdeographsExtensionB (Part 2 of 7) U+2170 (Unicode character), see List of Latin...
used by ethnic minorities in China, as well as glyphs from CJKUnifiedIdeographsExtensionB due to the update of Unicode. Adobe-GB1 is the corresponding...
mainly CJK U Ideographs Ext A, and Han Nom B covers mostly Ext B. ^§ Sun-Ext A covers 102 blocks of different languages. Sun-ExtB covers mostly CJK Supplement...
not yet encoded in Unicode. This character is part of the CJKUnifiedIdeographsExtensionB block and might not be displayed or printed properly. It consists...
10358 from the Unified Repertoire and Ordering, 3187 from CJKUnifiedIdeographsExtension A and 107 from CJK Compatibility Ideographs (all in the Basic...
planes 15 (Fhex) and 16 (10hex), called Supplementary Private Use Area-A and -B (§ PUA-A) The Unicode Stability Policy requires that a character, once assigned...
of thousands, are named in the pattern "cjkunifiedideograph-hhhh". For example, U+4E00 一 CJKUNIFIEDIDEOGRAPH-4E00. Formatting characters are named too:...
batteries U+2170x (Unicode character block), see List of CJKUnifiedIdeographsExtensionB (Part 2 of 7) Search for "21700" on Wikipedia. All pages with...
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